Themed collection Quantum Dots: A Nanoscience Nobel Prize

This article focuses on state-of-the-art technologies used in the research on materials, devices and processes to achieve high-performance QD-LEDs.

This feature article highlights efforts towards achieving synthetic control over non-lead containing IV–VI monochalcogenides and their application in photovoltaic devices.

A comprehensive review on Hg chalcogenide colloidal quantum dot infrared photodetectors, with the essential progress of synthesis methods, property control, device engineering, focus plane array integration and innovative applications.

The recent advances in sustainable optoelectronics applications of quantum dots derived from different biomolecules are documented in this review.

Overview of the optical properties and versatile applications of carbon dots.

This review details the recent progress regarding the state-of-the-art use of semiconductor quantum dots (QDs) as metal ion probes for diverse applications.

Recent progress on graphene quantum dots is presented, mainly focusing on the top-down synthetic routes, optical properties and applications.

We have successfully fabricated a high-Q vertical-cavity surface-emitting laser (VCSEL) using CsPbBr₃ QDs, achieving room-temperature lasing with a low threshold of 8.8 W cm⁻², demonstrating excellent stability even after a year.

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

High photoluminescent InP/ZnS QDs synthesis by in situ H₂S interface engineering.

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.

Tricolored white lighting quantum dot-light-emitting diodes comprising three environmentally benign primary color emitters of II–VI blue and green ZnSeTe and I–III–VI red Zn–Cu–In–S QDs are demonstrated.

Lead-free Bi-based perovskite FA₃Bi₂X₉ (X = Cl, Br, and I) quantum dots (QDs) are synthesized for the first time at room temperature. The ligand-passivated FA₃Bi₂Br₉ QDs exhibit blue emission at 437 nm with photoluminescence quantum yield (PLQY) up to 52%.

Highly luminescent glass-stabilized CsPbX₃ (X = Cl, Br, I) perovskite QDs are fabricated via an in situ glass crystallization strategy and fluorine doping.

For the first time, this work presents a novel room temperature time-effective concept to manipulate the crystallization kinetics and magnetic responses of thin films grown on amorphous substrates.

In Mg-doped ZnO/PbS QDHSCs, a spike structure is formed between the QDs and the “electron acceptor”, which improved charge collection efficiency.

A simple strategy to synthesize TDPA coated CsPbBr₃ QDs with improved stability and high PLQY.

Electrospun PMMA fiber membrane encapsulated with CsPbBr₃ exhibits excellent FRET detection performance on trypsin, Cu²⁺ and pH.

This paper presents a fully-continuous novel liquid–liquid-extraction (LLE) platform for the purification of nanoparticles.

A silicon nanocrystal paper based sensor has been developed for the rapid, on-site detection of nitro-group containing explosive compounds.

Highly efficient perovskite quantum-dot-sensitized solar cell.

The 4.2 nm α-CsPbI₃ quantum dots - polymer composite films with 630 nm emission and high stability have been achieved, which are used for LED displays with color gamut to 96% of the Rec. 2020 standard.

Image (left) acquired using a camera which active layer is a photoconductive layer fabricated from a HgTe nanocrystal film (schematic on right).

High quality red-emitting In(Zn)P QDs were synthesized by combining a Zn oxo cluster and seed-mediated continuous growth method.

We reports a QD photolithography technique using a custom-developed QD photoresist made of an organic–inorganic hybrid coating layer.

The photoluminescence properties of Ag(In_xGa_1−x)S₂ quaternary semiconductor quantum dots are improved by ligand exchange with L-, X-, and Z-type ligands. Analyses of both the quantum dots and byproducts are performed for understanding the mechanism.

The photoluminescence mechanisms of S-dots were revealed by the bubbling-assisted synthesis and spectroscopic study. The emission color of the S-dots depends on the size, and the emission efficiency is affected by the surface sulfur species.

Room temperature synthesis of Sn²⁺ doped CsPbBr₃ QDs show a high PLQY of 82.77% and their corresponding WLEDs exhibit a CRI of 89 and a CCT of 3954.

Herein, we demonstrate for the first time matrix-free deposition of two dimensional (2D) MoS₂ nanosheets as an efficient hole transport layer (HTL) for colloidal lead sulfide (PbS) quantum dot (QD) solar cells.

Small, specific, low-valency quantum dots for single-cell and single-molecule imaging.

Uniform CsPbX₃ quantum dots were synthesized via an emulsion fabrication and demulsion method at room temperature. The as-prepared CsPbX₃ QDs exhibit high synthetic yield and highly uniform morphology, as well as excellent photocatalytic activity toward the degradation of MO.

Efficient inverted QLEDs have been developed by using solution processed ZnMgO nanoparticles as an interfacial modification layer.

Fluorescent N-GQDs with a high quantum yield of 59.2% have been synthesized by pyrolyzing CA and Tris-HMA. The N-GQDs emitted strong blue fluorescence under 365 nm UV light and their fluorescence intensity showed a sensitive response to TNP in the range 1–60 μM.

Graphene quantum dots synthesized from activated graphene using ultrasonication and chemical activation shows high edge-enriched states resulting in excellent luminescence and capacitance properties.

A facile hydrothermal synthesis route to N and S, N co-doped graphene quantum dots (GQDs) was developed by using citric acid as the C source and urea or thiourea as N and S sources.

Highly luminescent AgInS₂–ZnS quantum dots that can be readily utilized in biological applications have been successfully prepared in aqueous media.