Themed collection Halide Perovskite Optoelectronics

56 items
Editorial

Introduction to halide perovskite optoelectronics

Lakshminarayana Polavarapu, Maria Antonietta Loi, Haibo Zeng, and Joseph M. Luther introduce this Nanoscale themed collection on halide perovskite optoelectronics.

Graphical abstract: Introduction to halide perovskite optoelectronics
From the themed collection: Halide Perovskite Optoelectronics
Minireview

Perspectives for the conversion of perovskite indoor photovoltaics into IoT reality

This minireview discloses the underlying challenges of perovskite indoor photovoltaics and summarizes the advanced strategies for indoor efficiency improvement.

Graphical abstract: Perspectives for the conversion of perovskite indoor photovoltaics into IoT reality
From the themed collection: Recent Review Articles
Minireview

Open-circuit voltage loss in perovskite quantum dot solar cells

This review summarizes the strategies on minimizing the open-circuit voltage (Voc) loss in perovskite quantum dot solar cells (PQDSCs) and proposed feasible methods to further improve the Voc of PQDSCs toward the radiative limit.

Graphical abstract: Open-circuit voltage loss in perovskite quantum dot solar cells
From the themed collection: Recent Review Articles
Minireview

Generating spin-triplet states at the bulk perovskite/organic interface for photon upconversion

In this minireview, we highlight the current status of triplet generation at the perovskite/organic semiconductor interface. We provide a discussion of current roadblocks and possible future directions based on additional promising annihilators.

Graphical abstract: Generating spin-triplet states at the bulk perovskite/organic interface for photon upconversion
From the themed collection: Recent Review Articles
Review Article

Anti-corrosion strategy to improve the stability of perovskite solar cells

We discuss the lifetimes of perovskite devices from the perspective of corrosion science. Benefiting from a series of anti-corrosion strategies (passivation, surface coating etc.) used in corrosion science, the stability of the devices is remarkably enhanced.

Graphical abstract: Anti-corrosion strategy to improve the stability of perovskite solar cells
From the themed collection: Recent Review Articles
Review Article

Recent progress in layered metal halide perovskites for solar cells, photodetectors, and field-effect transistors

Metal halide perovskite materials demonstrate immense potential for photovoltaic and electronic applications.

Graphical abstract: Recent progress in layered metal halide perovskites for solar cells, photodetectors, and field-effect transistors
From the themed collection: Recent Review Articles
Review Article

Tiny spots to light the future: advances in synthesis, properties, and application of perovskite nanocrystals in solar cells

We reviewed recent findings regarding the synthesis of perovskite nanocrystals, their application in solar cells, the impact of surface chemistry and device interfaces on efficiency, and a perspective on the up-scaling of this technology.

Graphical abstract: Tiny spots to light the future: advances in synthesis, properties, and application of perovskite nanocrystals in solar cells
From the themed collection: Recent Review Articles
Open Access Communication

Impact of the organic cation on the band-edge emission of two-dimensional lead–bromide perovskites

Our study that correlates the optical emission dynamics with structural and vibrational properties of the two-dimensional layered perovskites. This provides novel insights on electron–phonon coupling in these materials.

Graphical abstract: Impact of the organic cation on the band-edge emission of two-dimensional lead–bromide perovskites
From the themed collection: Halide Perovskite Optoelectronics
Open Access Communication

Photoinduced interfacial electron transfer from perovskite quantum dots to molecular acceptors for solar cells

Electron donor-acceptor systems between halide perovskites and molecular acceptors form promising p-n junctions for solar cells.

Graphical abstract: Photoinduced interfacial electron transfer from perovskite quantum dots to molecular acceptors for solar cells
From the themed collection: Halide Perovskite Optoelectronics
Communication

High bandwidth semipolar (20–21) micro-LED-based white light-emitting diodes utilizing perovskite quantum dots and organic emitters in color-conversion layers for visible light communication and solid-state lighting applications

Pictorial representation of high-bandwidth WLEDs by utilizing combinations of perovskite quantum dots (PQDs) and organic materials as color converters under the excitation of a semipolar blue micro-LED.

Graphical abstract: High bandwidth semipolar (20–21) micro-LED-based white light-emitting diodes utilizing perovskite quantum dots and organic emitters in color-conversion layers for visible light communication and solid-state lighting applications
From the themed collection: Halide Perovskite Optoelectronics
Communication

Investigating the interfacial properties of halide perovskite/TiOx heterostructures for versatile photocatalytic reactions under sunlight

Heterostructures of metal halide perovskites and TiOx are efficient photocatalytic materials owing to the combination of the high absorption coefficients and long charge-carrier lifetimes of perovskites, and efficient photocatalytic activity of TiOx.

Graphical abstract: Investigating the interfacial properties of halide perovskite/TiOx heterostructures for versatile photocatalytic reactions under sunlight
From the themed collection: Halide Perovskite Optoelectronics
Communication

Highly stable, substrate-free, and flexible broadband halide perovskite paper photodetectors

A novel strategy to fabricate highly stable, substrate-free, flexible, and paper-like halide perovskite photodetectors using Zn-doped MA0.6FA0.4PbI3 and cellulose nanocrystals.

Graphical abstract: Highly stable, substrate-free, and flexible broadband halide perovskite paper photodetectors
From the themed collection: Halide Perovskite Optoelectronics
Open Access Communication

Large area inkjet-printed metal halide perovskite LEDs enabled by gas flow assisted drying and crystallization

Large area metal halide perovskite LEDs were fabricated by inkjet printing. Homogeneous drying and crystallization was facilitated by a guided and optimized gas flow.

Graphical abstract: Large area inkjet-printed metal halide perovskite LEDs enabled by gas flow assisted drying and crystallization
From the themed collection: Halide Perovskite Optoelectronics
Open Access Communication

Nanoarchitectonics in fully printed perovskite solar cells with carbon-based electrodes

In this work, we demonstrate a novel nanoarchitectonic approach to tailor perovskite crystal growth leading to the enhancement of the opto-electronic properties and power conversion efficiency of perovskite solar cells.

Graphical abstract: Nanoarchitectonics in fully printed perovskite solar cells with carbon-based electrodes
From the themed collection: Halide Perovskite Optoelectronics
Open Access Communication

Determination of the optical constants of ligand-free organic lead halide perovskite quantum dots

We determine the complex refractive index of perovskite QDs, for which we take advantage of a ligand-free synthetic approach that facilitates discriminating the contribution of the nanocrystals to the effective optical constant of the ensemble.

Graphical abstract: Determination of the optical constants of ligand-free organic lead halide perovskite quantum dots
From the themed collection: Halide Perovskite Optoelectronics
Communication

Functionalized polymer modified buried interface for enhanced efficiency and stability of perovskite solar cells

A new interfacial polymer material named povidone-iodine was reported. Due to the reduced defect density and improved interface contact, ultimately, we achieved attractive efficiency and considerable long-term stability.

Graphical abstract: Functionalized polymer modified buried interface for enhanced efficiency and stability of perovskite solar cells
From the themed collection: Halide Perovskite Optoelectronics
Open Access Paper

Efficient and reliable encapsulation for perovskite/silicon tandem solar modules

Vacuum lamination is currently the best encapsulation for perovskite/silicon tandems. Here, we study the lamination process with two different thermoplastic encapsulants, comparing tandem performance and stability, according to IEC standards of certification.

Graphical abstract: Efficient and reliable encapsulation for perovskite/silicon tandem solar modules
From the themed collection: Nanoscale Most Popular 2023 Articles
Open Access Paper

Interfacial engineering to modulate surface dipoles, work functions and dielectric confinement of halide perovskites

Perovskite surface energetics upon functionalization with atomic scale insight and validity assessment of the empirical expression derived from the Helmholtz equation.

Graphical abstract: Interfacial engineering to modulate surface dipoles, work functions and dielectric confinement of halide perovskites
From the themed collection: Halide Perovskite Optoelectronics
Paper

Air-stable mixed cation lead halide perovskite films and microscopic study of their degradation process

Photoluminescence microscopy and in situ spectroscopy reveal the mechanism of degradation of stable mixed cation perovskite films.

Graphical abstract: Air-stable mixed cation lead halide perovskite films and microscopic study of their degradation process
From the themed collection: Halide Perovskite Optoelectronics
Paper

Promoting solution-phase superlattices of CsPbBr3 nanocrystals

Efficient inter-particle coupling interactions in solution-phase CsPbBr3 superlattices give rise to enhanced optoelectronic properties.

Graphical abstract: Promoting solution-phase superlattices of CsPbBr3 nanocrystals
From the themed collection: Halide Perovskite Optoelectronics
Paper

Tunable near-infrared emission and three-photon absorption in lanthanide-doped double perovskite nanocrystals

Cs2AgInCl6 double perovskite (DP) nanocrystals (NCs) are an emerging class of materials with promising application potential in photonics/optoelectronics owing to their nontoxicity, direct bandgap, and high thermal and moisture stability.

Graphical abstract: Tunable near-infrared emission and three-photon absorption in lanthanide-doped double perovskite nanocrystals
Paper

Structural, vibrational, photoelectrochemical, and optical properties of two-dimensional Ruddlesden–Popper perovskite BA2PbI4 crystals

A two-dimensional Ruddlesden–Popper perovskite BA2PbI4 was systematically studied, including its crystal structure, microstructure, electronic structure, phonon dispersion, vibrational characteristics, etc.

Graphical abstract: Structural, vibrational, photoelectrochemical, and optical properties of two-dimensional Ruddlesden–Popper perovskite BA2PbI4 crystals
From the themed collection: Halide Perovskite Optoelectronics
Open Access Paper

Role of a corrugated Dion–Jacobson 2D perovskite as an additive in 3D MAPbBr3 perovskite-based light emitting diodes

A corrugated Dion–Jacobson 2D perovskite has been integrated with a 3D MAPbBr3 perovskite by using a blend and bilayer approach for application in light emitting diodes.

Graphical abstract: Role of a corrugated Dion–Jacobson 2D perovskite as an additive in 3D MAPbBr3 perovskite-based light emitting diodes
From the themed collection: Halide Perovskite Optoelectronics
Paper

Achieving adjustable digital-to-analog conversion in memristors with embedded Cs2AgSbBr6 nanoparticles

The digital-to-analog conversion of the memristor is realized by adjusting the embedding concentration of Cs2AgSbBr6 nanoparticles.

Graphical abstract: Achieving adjustable digital-to-analog conversion in memristors with embedded Cs2AgSbBr6 nanoparticles
From the themed collection: Halide Perovskite Optoelectronics
Paper

Tuning of electron transport layers using MXene/metal–oxide nanocomposites for perovskite solar cells and X-ray detectors

This work elaborates on the decoration of metal oxides (ZnO and Fe3O4) between MXene sheets for use as the supporting geometry of PCBM electron transport layers (ETLs) in perovskite solar cells and X-ray detectors.

Graphical abstract: Tuning of electron transport layers using MXene/metal–oxide nanocomposites for perovskite solar cells and X-ray detectors
From the themed collection: Halide Perovskite Optoelectronics
Paper

Stabilizing FASnI3-based perovskite light-emitting diodes with crystallization control

Record-long operational lifetime (T50) of 10.3 h at 100 mA cm−2 is achieved for FASnI3-based perovskite LEDs through the inclusion of PEAI, which is found to improve crystallinity and suppress oxidation of the lead-free perovskites.

Graphical abstract: Stabilizing FASnI3-based perovskite light-emitting diodes with crystallization control
From the themed collection: Halide Perovskite Optoelectronics
Paper

Revealing the effect of substitutional cation doping in the A-site of nanoscale APbI3 perovskite layers for enhanced retention and endurance in optoelectronic resistive switching for non-volatile bipolar memory devices

The effect of substitutional cation doping in the A-site of the nanoscale APbI3 perovskite layer has been systematically investigated to achieve improvements in the charge-carrier dynamics and endurance of non-volatile bipolar (NVB) memory devices.

Graphical abstract: Revealing the effect of substitutional cation doping in the A-site of nanoscale APbI3 perovskite layers for enhanced retention and endurance in optoelectronic resistive switching for non-volatile bipolar memory devices
From the themed collection: Halide Perovskite Optoelectronics
Paper

Transforming exciton dynamics in perovskite nanocrystal through Mn doping

Exciton dynamics of perovskite nanocrystal transformed through Mn doping.

Graphical abstract: Transforming exciton dynamics in perovskite nanocrystal through Mn doping
From the themed collection: Halide Perovskite Optoelectronics
Paper

Solvent engineering of MAPbI3 perovskite thick film for a direct X-ray detector

An ethylene glycol based solvent engineering strategy to prepare high-quality MAPbI3 thick films for direct X-ray detectors.

Graphical abstract: Solvent engineering of MAPbI3 perovskite thick film for a direct X-ray detector
From the themed collection: Halide Perovskite Optoelectronics
Open Access Paper

Tuning the energy transfer in Ruddlesden–Popper perovskites phases through isopropylammonium addition – towards efficient blue emitters

Adding isopropylamonium cation in quasi-2D perovskite films leads to a change in phase distribution and orientation of crystalline domains, with efficient sky blue emission. This allows the fabrication of LEDs with high luminescence and color purity.

Graphical abstract: Tuning the energy transfer in Ruddlesden–Popper perovskites phases through isopropylammonium addition – towards efficient blue emitters
From the themed collection: Halide Perovskite Optoelectronics
Open Access Paper

Continuous manufacturing of highly stable lead halide perovskite nanocrystals via a dual-reactor strategy

Lead halide perovskite nanocrystals possess incredible potential as next generation emitters due to their stellar set of optoelectronic properties.

Graphical abstract: Continuous manufacturing of highly stable lead halide perovskite nanocrystals via a dual-reactor strategy
From the themed collection: Halide Perovskite Optoelectronics
Paper

Inverted semitransparent perovskite nanocrystal light-emitting diodes with a conjugated polymer as an electron transport layer

Inverted perovskite nanocrystal light-emitting diodes with average 61% transmittance have been achieved with PFN as electron transport layer.

Graphical abstract: Inverted semitransparent perovskite nanocrystal light-emitting diodes with a conjugated polymer as an electron transport layer
From the themed collection: Halide Perovskite Optoelectronics
Paper

CsPbBr3 perovskite quantum dots grown within Fe-doped zeolite X with improved stability for sensitive NH3 detection

Functional nanocomposites fabricated by growing CsPbBr3 perovskite QDs within Fe-doped zeolite X with improved stability for sensitive NH3 detection.

Graphical abstract: CsPbBr3 perovskite quantum dots grown within Fe-doped zeolite X with improved stability for sensitive NH3 detection
From the themed collection: Halide Perovskite Optoelectronics
Open Access Paper

Structural effects on the luminescence properties of CsPbI3 nanocrystals

By studying the temperature and pressure response of CsPbI3 nanocrystals, we demonstrated that the lattice deformation mechanism strongly affects the material's bandgap and recombination dynamics in nanocrystals with different sizes.

Graphical abstract: Structural effects on the luminescence properties of CsPbI3 nanocrystals
From the themed collection: Halide Perovskite Optoelectronics
Paper

Improving anion-exchange efficiency and spectrum stability of perovskite quantum dots via an Al3+ bonding-doping synergistic effect

We report an Al3+ bonding-doping synergistic strategy by anion exchange for stable deep-blue perovskite QD and QLED. The QD exhibits superior stability against moisture and electric field, the spectrum-stable QLED achieves an EQE of 1.38% at 463 nm.

Graphical abstract: Improving anion-exchange efficiency and spectrum stability of perovskite quantum dots via an Al3+ bonding-doping synergistic effect
From the themed collection: Halide Perovskite Optoelectronics
Open Access Paper

Single-particle optical study on the effect of chloride post-treatment of MAPbI3 nano/microcrystals

MACl post-treatment of MAPbI3 nanoparticles in a mixed solvent successfully suppresses surface traps, associated with an improved PL intensity and lifetime, brighter and longer ON-states in PL blinking, and a more stable, enhanced photocurrent.

Graphical abstract: Single-particle optical study on the effect of chloride post-treatment of MAPbI3 nano/microcrystals
From the themed collection: Halide Perovskite Optoelectronics
Paper

Regulating the coordination geometry of polyhedra in zero-dimensional metal halides for tunable emission

The introduction of Zn2+ and Mn2+ to (Bmpip)2[PbBr4] effectively alters the polyhedral configuration from a PbBr42− tetrahedron to a Pb3Br115− trimer. As a result, the self-trapped exciton emission properties are significantly enhanced.

Graphical abstract: Regulating the coordination geometry of polyhedra in zero-dimensional metal halides for tunable emission
From the themed collection: Halide Perovskite Optoelectronics
Paper

Highly flexible organo-metal halide perovskite solar cells based on silver nanowire–polymer hybrid electrodes

A flexible electrode consisting of a thin percolation network of AgNWs inlaid on the surface of a flexible PUA substrate and a conductive layer is proposed, and the resulting devices exhibited desired flexibility and mechanical stability.

Graphical abstract: Highly flexible organo-metal halide perovskite solar cells based on silver nanowire–polymer hybrid electrodes
From the themed collection: Halide Perovskite Optoelectronics
Paper

Two-dimensional semiconducting Cu(I)/Sb(III) bimetallic hybrid iodides with a double perovskite structure and photocurrent response

We report here two new semiconducting two-dimensional lead-free organic–inorganic compounds with an obvious photocurrent response.

Graphical abstract: Two-dimensional semiconducting Cu(i)/Sb(iii) bimetallic hybrid iodides with a double perovskite structure and photocurrent response
From the themed collection: Halide Perovskite Optoelectronics
Paper

Facile synthesis strategy for cesium tin halide perovskite crystals toward light emitting devices and anti-counterfeiting flexible fiber

Cs2Sn1−xTexCl6 crystals are synthesized and can be used for post-processing fibers for LED and anti-counterfeiting materials.

Graphical abstract: Facile synthesis strategy for cesium tin halide perovskite crystals toward light emitting devices and anti-counterfeiting flexible fiber
From the themed collection: Halide Perovskite Optoelectronics
Paper

Atomic layer deposition of SnO2 using hydrogen peroxide improves the efficiency and stability of perovskite solar cells

Perovskite solar cell with a H2O2-derived SnO2 film formed by atomic layer deposition (ALD) shows better stability than that with the H2O-derived one due to the reduced surface hydroxyl defect.

Graphical abstract: Atomic layer deposition of SnO2 using hydrogen peroxide improves the efficiency and stability of perovskite solar cells
From the themed collection: 2024 Lunar New Year Collection
Paper

Combining negative photoconductivity and resistive switching towards in-memory logic operations

We demonstrate that a material exhibiting a negative photoconductivity and resistive switching can manifest in-memory OR logic gate operations. We have considered devices based on silver-bismuth-iodide rudorffites for this function.

Graphical abstract: Combining negative photoconductivity and resistive switching towards in-memory logic operations
From the themed collection: Nanoscale and Nanoscale Horizons: Nanodevices
Paper

Iodide/triiodide redox shuttle-based additives for high-performance perovskite solar cells by simultaneously passivating the cation and anion defects

Iodide/triiodide redox shuttles as new additives are introduced to simultaneously passivate the cation and anion defects of methylammonium lead iodide-based perovskite solar cells.

Graphical abstract: Iodide/triiodide redox shuttle-based additives for high-performance perovskite solar cells by simultaneously passivating the cation and anion defects
From the themed collection: Halide Perovskite Optoelectronics
Paper

Thermal degradation of the bulk and interfacial traps at 85 °C in perovskite photovoltaics

Thermal degradation of perovskite photovoltaics is investigated in terms of the energetic and spatial distributions of the traps.

Graphical abstract: Thermal degradation of the bulk and interfacial traps at 85 °C in perovskite photovoltaics
From the themed collection: Halide Perovskite Optoelectronics
Paper

In situ crystal reconstruction strategy-based highly efficient air-processed inorganic CsPbI2Br perovskite photovoltaics for indoor, outdoor, and switching applications

The PEAI additive helps in the crystal growth regulation of CsPbI2Br perovskite, which contributes to indoor/outdoor photovoltaic implementation with exceptional conversion efficiency.

Graphical abstract: In situ crystal reconstruction strategy-based highly efficient air-processed inorganic CsPbI2Br perovskite photovoltaics for indoor, outdoor, and switching applications
From the themed collection: Halide Perovskite Optoelectronics
Paper

Spin-photogalvanic effect in chiral lead halide perovskites

An exploration of the spin-photogalvanic effect for chiral lead halide perovskites. The effect originates from the coexistence of the Rashba spin orbit coupling and chiral-induced spin selectivity.

Graphical abstract: Spin-photogalvanic effect in chiral lead halide perovskites
From the themed collection: 2024 Lunar New Year Collection
Paper

Efficient thin-film perovskite solar cells from a two-step sintering of nanocrystals

Here, we report a novel route to construct efficient thin-film perovskite solar cells from sintering of nanocrystals and a facile two-step sintering process is proposed to achieve precise control over the microstructure development.

Graphical abstract: Efficient thin-film perovskite solar cells from a two-step sintering of nanocrystals
From the themed collection: Halide Perovskite Optoelectronics
Paper

Hybrid 2D perovskite and red emitting carbon dot composite for improved stability and efficiency of LEDs

To improve operational stability of perovskite (PSK) LEDs, we used red-emitting hydrophobic carbon dots to impart structural stability to 2D PSK and reduce band offset, improving the operational stability of device to 8 hours from less than 2 hours.

Graphical abstract: Hybrid 2D perovskite and red emitting carbon dot composite for improved stability and efficiency of LEDs
From the themed collection: Halide Perovskite Optoelectronics
Paper

Unveiling the degraded electron durability in reduced-dimensional perovskites

An in situ XPS measurement is proposed by employing a built-in charge neutralization system to simulate the practical operation of light-emitting diodes for unraveling the degraded electron durability of reduced-dimensional perovskite emitters.

Graphical abstract: Unveiling the degraded electron durability in reduced-dimensional perovskites
From the themed collection: Halide Perovskite Optoelectronics
Paper

Correlation between hysteresis dynamics and inductance in hybrid perovskite solar cells: studying the dependency on ETL/perovskite interfaces

A correlation between band alignment at an electron transport layer/perovskite interface and the locus of hysteresis in perovskite solar cells is proposed.

Graphical abstract: Correlation between hysteresis dynamics and inductance in hybrid perovskite solar cells: studying the dependency on ETL/perovskite interfaces
From the themed collection: Halide Perovskite Optoelectronics
Paper

Size-dependent chiro-optical properties of CsPbBr3 nanoparticles

The chiro-optical properties of CsPbBr3 nanoparticles (NP) capped by chiral organic ligands are strongly dependent on their size, with the CD response of the first exciton band decreasing 100-fold upon tripling the NP edge length.

Graphical abstract: Size-dependent chiro-optical properties of CsPbBr3 nanoparticles
From the themed collection: Halide Perovskite Optoelectronics
Open Access Paper

Photosensitisation of inkjet printed graphene with stable all-inorganic perovskite nanocrystals

All-inorganic perovskite nanocrystals are formulated for inkjet deposition and utilised as photosensitive layers in single layer graphene and inkjet-printed graphene detectors with high photoresponse in UV-vis range.

Graphical abstract: Photosensitisation of inkjet printed graphene with stable all-inorganic perovskite nanocrystals
From the themed collection: Halide Perovskite Optoelectronics
Paper

Diverse CsPbI3 assembly structures: the role of surface acids

A second-step nucleation strategy was developed to control the monomer concentration of lead–iodine octahedra to induce the formation of a Pb(SO3)x-rich surface, from which diverse CsPbI3 assembly structures were realized.

Graphical abstract: Diverse CsPbI3 assembly structures: the role of surface acids
From the themed collection: Halide Perovskite Optoelectronics
Paper

Highly stable lanthanide-doped CsPbI3 perovskite nanocrystals with near-unity quantum yield for efficient red light-emitting diodes

The rare earth La cation is strategically introduced to fundamentally improve CsPbI3 phase stability and emission efficiency (near-unity PLQY of 99.3%), prompting great enhancements in the perovskite light-emitting diodes.

Graphical abstract: Highly stable lanthanide-doped CsPbI3 perovskite nanocrystals with near-unity quantum yield for efficient red light-emitting diodes
From the themed collection: Halide Perovskite Optoelectronics
Paper

Enhancement of self-trapped excitons and near-infrared emission in Bi3+/Er3+ co-doped Cs2Ag0.4Na0.6InCl6 double perovskite

Self-trapped exciton-derived energy transfer is a possible strategy to enhance the emission of Er at 1540 nm in lead-free double perovskite structures.

Graphical abstract: Enhancement of self-trapped excitons and near-infrared emission in Bi3+/Er3+ co-doped Cs2Ag0.4Na0.6InCl6 double perovskite
From the themed collection: Halide Perovskite Optoelectronics
Paper

Co-doping of tellurium with bismuth enhances stability and photoluminescence quantum yield of Cs2AgInCl6 double perovskite nanocrystals

The Bi3+ and Te4+ co-doping strategy and in situ growth regulation via external oxygen vacancies were applied to Cs2AgInCl6 nanocrystals, resulting in a high photoluminescence quantum yield of 34%, as a consequence of restrained Ag/In vacancies.

Graphical abstract: Co-doping of tellurium with bismuth enhances stability and photoluminescence quantum yield of Cs2AgInCl6 double perovskite nanocrystals
From the themed collection: Halide Perovskite Optoelectronics
56 items

About this collection

Guest Edited by Dr Lakshminarayana Polavarapu (University of Vigo, Spain), Professor Maria Antonietta Loi (University of Groningen, Netherlands), Professor Haibo Zeng (Nanjing University, China) and Dr ‪Joseph M. Luther (National Renewable Energy Laboratory, USA).

Over the past decade, metal halide perovskites, both in the form of thin films and colloidal nanocrystals (NCs), have emerged as a leading candidate for optoelectronic applications because of their exciting properties including defect tolerance, long charge carrier diffusion lengths, high photoluminescence quantum yield, and facile fabrication using relatively low-cost precursors. We have witnessed a steep increase in the efficiency of perovskite optoelectronic devices such as solar cells, LEDs, and photodetectors in a short development time. Despite tremendous success in achieving efficiencies as high as those of classical semiconductors such as silicon and metal chalcogenides, perovskite optoelectronics are still suffering from long-term chemical and operational stability along with toxicity and scalability to large-area devices. Currently, perovskites (bulk and nanocrystals) and corresponding devices are undergoing further optimization regarding the composition of A, B, and X sites, surface passivation, optimization of the device architectures, interfaces, and charge transport layers, and their encapsulation.

This special themed collection aims to provide a platform for the latest developments that address the challenges of halide perovskite optoelectronics and focuses on a variety of topics including composition engineering of bulk perovskite thin films for improving phase stability; synthesis of stable perovskite NCs by composition engineering, doping, and passivation; stable layered 2D (Ruddlesden–Popper (RP)) perovskite optoelectronics (solar cells LEDs, photodetectors, etc.); perovskite solar cells with improved chemical and long-term stability, and efficiency; defect passivation of perovskite solar cells and LEDs; lead-free perovskite optoelectronics; device encapsulation; large-area devices; charge carrier dynamics and transport properties of thin films made of bulk and colloidal NC perovskites.

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