Themed collection 2022 Journal of Materials Chemistry C Most Popular Articles

The trends in octahedral tilting in Prussian blue analogues are reviewed as a function of various structural factors. The link between tilting and functionality is discussed.

This review covers recent advances in multiple boron–nitrogen doped π-conjugated systems including their synthetic strategies and applications in optoelectronic devices.

Illustration of strain-, pressure-, temperature-, humidity- and gas sensor.

This review article summarizes the synthesis and the fluorescence mechanism together with the most important applications in thermometry, bio-imaging, LSCs and photocatalysis of red/near-infrared C-dots.

In this review, we illustrate how the field of luminescent copper(I) compounds has developed with a focus on ionic copper(I) complexes and those exhibiting thermally-activated delayed fluorescence (TADF).

The versatile synthetic side chain toolbox assists in tuning the OECT parameters by controlling material properties of organic mixed conductors. In this review we critically summarise and evaluate various side chains used throughout OECT materials.

Improving up-conversion and suppressing non-radiative inactivation by employing the novel dibenzothioxanthene acceptor and employing a bulky donor is demonstrated as a new perspective toward highly efficient red organic light-emitting diodes.

Precisely regulating the key parameters associated with the thermally activated delayed fluorescence process is accomplished with optimized π-bridges or end-groups, affording improved maximum external quantum efficiencies of 18.9% (@630 nm).

Biphenyl at its best: a (triisopropylsilyl)ethynyl group in para position converts biphenyl into a UV annihilator that is successfully employed for blue-to-UV upconversion with unprecedented output photon energies.

A multifunctional nonlinear organic molecular device is designed and demonstrated for electric field sensing and modulating. The molecule consists of a TPE-derived module connected by an alkyl chain to an NAI-derived module.

Films of the two-dimensional Dion–Jacobson compound PDMAPbI₄ are studied through concerted multimodal microscopy. Hyperspectral Raman and PL imaging underline the complex impact of the microstructure, composition, and orientation on the photophysics.

A water-resistance polymer-based room temperature phosphorescence material (RTP) with an ultralong lifetime and afterglow was achieved by doping PAHs within a rigid polymeric network during in situ polymerization.

Combinatorial Al_1−xSc_xN library decouples composition, crystal structure, and ferroelectric properties. The local chemical bonding is the key factor to control ferroelectric properties rather than extended crystal structure.

The archetypical conducting polymer poly(3,4-ethylenedioxythiophene) can be equipped with a glycol side-chain, which favorably tunes its electrochemical properties and opens new processability options.

We report the triplet energy transfer from PbS QDs to four energetically and structurally similar tetracene ligands, even with similar ligands we find that the triplet energy transfer dynamics can vary significantly.

Cyclometallated N-heterocyclic carbenes with an appended carbazole and chelating diphosphines brought together to achieve the first simple solution-processed green-emitting iTMC-LECs based on mononuclear Pt(II) complexes.

We synthesized a pair of tetraphenylethylene-based enantiomeric (R)- and (S)-Δ which form double helices. Acid-responsive luminescence of both triangles enables them detecting traces of acids in organic solvents such as CDCl₃, CH₂Cl₂, CHCl₃, etc.

Synthesis of two dithia[9]helicenes by means of a LED-based double photocyclization is reported.

The degree of mixing of intramolecular charge transfer excitations can be used to brighten the lowest doublet excited state of TTM.

Boltzmann or not? Most luminescent thermometers rely on a configurational crossover between two excited states with high mutual non-radiative transition rates and relative sensitivity. It is shown that these materials follow a “quasi”-Boltzmann law as is demonstrated for the case of Sm²⁺.

A facile design strategy based on the structural control of intramolecular hydrogen bonding and push–pull electron effects was proposed to construct highly efficient UORTP materials.

A gel electrolyte-based thermogalvanic device with I⁻/I₃⁻ as a redox pair is fabricated, which shows a preferred temperature tolerance and superior anti-drying capacity. Thus, a gel-based temperature monitoring system was developed.

A nanoflower-like Zr metal–organic framework CJLU-1 with a 2D layered porous structure and its mixed-matrix membrane were realized as a novel sensing platform for the detection of nitroaromatics in the ppb range.

PCEs of 14.81% and 17.53% are achieved in BHJ and LbL-PSCs with PNTB6-Cl and Y6 as active layers, and DPE and DFB as solvent additives, respectively. The PCE improvement can be confirmed from the optimized crystallinity and morphology of films.

Due to their high service temperature, excellent thermal insulation, and nanoporous morphology, polyimide (PI) aerogels have the potential capability to be used in the next generation of microelectronic devices and flexible electronics.

We have successfully developed blue-emitting thermally activated delayed fluorescence (TADF) compounds derived from 2CzPN. They display novel electrochemiluminescence properties, these revealing correlations with measured ΔE_ST values.

A TADF emitter exhibiting high OLED device performance of 25% and narrow emission (FWHM = 58 nm) in the deep blue region (λ_em = 458 nm, CIE = 0.14, 0.13) due to balanced charge transfer interactions and locked molecular geometry.

Conversion of near-infrared photons to visible light in rubrene based systems is made 20x more efficient when mixed with 0.5% wt DBP. This is not because singlet fission in rubrene is supressed, but because of reduced triplet losses.

A new strategy for noninvasive temperature probing, applying the temperature-induced configuration crossover between the thermally-coupled ⁶P_7/2 and 5d₁ levels of Eu²⁺ is presented.

The intermetallic wetting between metallic liquids and solid surfaces enables a high-resolution liquid metal patterning strategy which is widely applicable for fabricating functional patterns on versatile substrates and planar/3D geometries.

Impedance spectroscopy (IS) has great potential to become a standard technique for the characterisation, analysis, and diagnosis of perovskite solar cells (PSC).