Enhancing device performance of CsPbBr3 perovskite light-emitting diodes with Cs2CO3 modification layer and dual additives DOI Creative Commons
Lung‐Chien Chen, Ching‐Ho Tien,

Kun‐Yi Lee

et al.

Materials Science in Semiconductor Processing, Journal Year: 2022, Volume and Issue: 148, P. 106815 - 106815

Published: May 21, 2022

This study presents the performance of CsPbBr3 perovskite light-emitting diodes (PeLEDs) with a cesium carbonate (CsCO3) modification layer and dual additives. With Cs2CO3 layer, poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) hole transport was recrystallized to flatten grains, reduce series resistance, lower impedance, operate at low level. It also has lowest starting voltage 3 V, which can release equivalent energy from electrons holes. At 6 it maximum luminance 16440 cd/m2 an external quantum efficiency (EQE) 1.56%.

Language: Английский

Efficient and Stable Perovskite White Light‐Emitting Diodes for Backlit Display DOI
Shuxin Chen,

Jidong Lin,

Song Zheng

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(18)

Published: Feb. 13, 2023

Abstract High‐quality backlit display puts forward urgent demand for color‐converting materials. Recently, metal halide perovskites (MHPs) with full spectral tunability, high photoluminescence quantum yields (PLQYs), and color purity have found potential application in wide‐color‐gamut display. Regrettably, naked MHPs suffer from long‐term instable issue cannot pass harsh stability tests. Herein, amorphous‐glass‐protected green/red CsPbX 3 dots (QDs) are prepared by elaborately optimizing glass structure, perovskite concentration, situ crystallization. PLQYs of green CsPbBr @glass red 1.5 I reach 94% 78%, respectively, which the highest ones composites reported so far comparable to colloidal counterparts. Benefited complete isolation QDs external environment network, can endure commercial standard aging tests 85 °C/85%RH blue‐light‐irradiation, applied construct white light‐emitting diodes (wLEDs) efficiency 13.8% ultra‐high luminance 500 000 cd m −2 . Accordingly, wLED arrays‐based unit a prototype device designed first time, showing more vivid feature benefited narrowband emissions QDs. This work highlights practical composite as an efficient stable light converter

Language: Английский

Citations

147

The mechanism of a PVDF/CsPbBr3 perovskite composite fiber as a self-polarization piezoelectric nanogenerator with ultra-high output voltage DOI

You Xue,

Tao Yang,

Yapeng Zheng

et al.

Journal of Materials Chemistry A, Journal Year: 2022, Volume and Issue: 10(41), P. 21893 - 21904

Published: Jan. 1, 2022

The piezoelectric properties of conventional materials are generally obtained through the rearrangement dipoles by an electric poling process.

Language: Английский

Citations

75

Advanced composite glasses with metallic, perovskite, and two-dimensional nanocrystals for optoelectronic and photonic applications DOI Creative Commons
Ioannis Konidakis,

Angeliki Karagiannaki,

Emmanuel Stratakis

et al.

Nanoscale, Journal Year: 2022, Volume and Issue: 14(8), P. 2966 - 2989

Published: Jan. 1, 2022

Reviewing the development of advanced composite glasses with metallic, perovskite, and two-dimensional nanocrystals for optoelectronic photonic applications.

Language: Английский

Citations

48

Optical Memory, Switching, and Neuromorphic Functionality in Metal Halide Perovskite Materials and Devices DOI Creative Commons
Gaurav Vats,

Brett Hodges,

Andrew J. Ferguson

et al.

Advanced Materials, Journal Year: 2022, Volume and Issue: 35(37)

Published: Sept. 19, 2022

Metal halide perovskite-based materials have emerged over the past few decades as remarkable solution-processable opto-electronic with many intriguing properties and potential applications. These emerging recently been considered for their promise in low-energy memory information processing In particular, large optical cross-sections, high photoconductance contrast, carrier diffusion lengths, mixed electronic/ionic transport mechanisms are attractive enabling elements neuromorphic devices that written and/or read domain. Here, we review recent progress toward functionality metal perovskite where photons used a critical degree of freedom switching, memory, functionality.

Language: Английский

Citations

44

Temporal @ spatial anti-counterfeiting with Mn2+/Bi3+/Er3+ doped BaZnOS phosphors DOI

Longchao Guo,

Ting Wang, Qingyuan Wang

et al.

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 442, P. 136236 - 136236

Published: April 7, 2022

Language: Английский

Citations

41

Nanocrystal-in-glass composite (NGC): A powerful pathway from nanocrystals to advanced optical materials DOI
Qiwen Pan, Dandan Yang, Guoping Dong

et al.

Progress in Materials Science, Journal Year: 2022, Volume and Issue: 130, P. 100998 - 100998

Published: June 29, 2022

Language: Английский

Citations

40

CsPbBr3@Glass Nanocomposite with Green‐Emitting External Quantum Efficiency of 75% for Backlit Display DOI
Shuxin Chen,

Jidong Lin,

Jie Huang

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(2)

Published: Oct. 2, 2023

Abstract Robust amorphous glass protected CsPbBr 3 (CsPbBr @glass) perovskite quantum dots (PeQDs) with ultra‐pure green emission and superior long‐term stability are highly desirable for developing wide‐color‐gamut liquid crystal displays. However, most of the reported @glass nanocomposites subject to low external efficiency (EQE). This work demonstrates that ZrO 2 additive has an “accumulation” effect on borosilicate network structure promote in situ nucleation/growth PeQDs inside rather than self‐crystallization. is beneficial reducing surface defects, improving quality PeQDs, thus boosting radiative recombination excitons. As a consequence, as‐prepared shows record EQE up 75% can pass accelerated aging tests at 85 °C/85% RH 1000 h blue light irradiation over 2000 h. Finally, prototype display using @glass‐based straight‐down backlit unit designed gains more favorable responses blind selection its high brightness 2647 cd m −2 color purity 88%. The findings will pave way realizing commercial application nanocomposite PeQDs‐converted display.

Language: Английский

Citations

34

Laser Technology for Perovskite: Fabrication and Applications DOI
Z. Wan, Zichen Liu, Qiwen Zhang

et al.

Advanced Materials Technologies, Journal Year: 2024, Volume and Issue: 9(10)

Published: March 4, 2024

Abstract Perovskite has attracted considerable attention in the electronic and optical fields recent years, fulfilling requirements of ever‐growing demand energy, environment, security, big data storage. Laser direct writing technology is a flexible mask‐free approach for fabricating, structuring, modifying, patterning perovskites. irradiation can directly induce perovskites from precursors due to photothermal photochemical effects laser. Therefore, various laser‐induced perovskites, such as perovskite quantum dots, nanowires, nanocrystals, films, are summarized. In particular, glass intensively investigated their high stability flexibility 3D printing. The second part this review examines applications based on laser technology, solar cells, flat lenses, microlasers, photoluminescence, lithography, sensors, encryption, Diverse treatments employed modulating devices, annealing, ablation, defects, discussed. Prospective challenges future trends research field also concluded.

Language: Английский

Citations

13

Dense and Nanoporous Glasses as Host Matrices to Grow Quantum Dots for Optical and Photonic Applications DOI Creative Commons
Xue Bai,

Lingzhi Wu,

John J. Magan

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

Abstract Quantum dots (QDs) grown within inorganic glasses (hereafter referred to as “QD glasses”) are promising candidates for an expanding list of applications such nonlinear optical (NLO) devices. However, lots research into NLO properties QDs still uses polymer‐based matrices, whose low laser damage threshold hinders practical applications. This can be explained by the difficulties typically encountered researchers wishing grow glass matrices. Fortunately, much progress has been made, not only regards dense but also in use nanoporous (NP) which is prepared and explored a macro‐matrix growth QDs. In situ techniques preparation QD more appealing than ex methods, former effectively avoid agglomeration need application prior treatments ligand exchange. Here, review advances both NP provided, with discussion on effect emission nature QDs, routes tune emission, enhancing performance and, finally, potential glasses. The overview directions future challenges this area presented.

Language: Английский

Citations

1

Exploring CsPbX3 (X = Cl, Br, I) Perovskite Nanocrystals in Amorphous Oxide Glasses: Innovations in Fabrication and Applications DOI

Sadaf Samiei,

Ehsan Soheyli, Kunnathodi Vighnesh

et al.

Small, Journal Year: 2023, Volume and Issue: 20(17)

Published: Dec. 10, 2023

Abstract Metal halide perovskites with excellent optical and electronic properties have become a trending material in the current research. However, their limited stability under ambient conditions degrades quality threatens potential commercialization as optoelectronic devices. Various approaches are adopted to improve of perovskite nanocrystals (PeNC) while maintaining advantageous properties, particularly strong luminescence. Among different possible improvement strategies, encapsulation PeNCs within amorphous glass matrices inorganic oxides has drawn widespread attention because it ensures high resistance against chemical corrosion temperature, thus enhancing chemical, thermal, mechanical improved light‐emission characteristics. In this article, two types materials, namely all‐inorganic metal oxide glasses briefly introduced, then methods reviewed fabricate PeNC@glass composites. These classified into three universal categories: compositional modification, structural dual encapsulation. final part review paper, examples applications PeNCs@glass composites light‐emitting devices displays, data storage anti‐counterfeiting, lasing, photodetectors X‐ray detectors, photocatalysis, filters, solar concentrators, batteries provided.

Language: Английский

Citations

22