Morphology Optimization of Perovskite Films for Efficient Sky-Blue Light Emitting Diodes via a novel Green Anti-Solvent Dimethyl Carbonate

2021 ◽  
Author(s):  
Yong-Wen Zhang ◽  
Zheng-Liang Diao ◽  
Ji-Yang Chen ◽  
Wan-Yi Tan ◽  
Yannan Qian ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Blue Light ◽  
Radiative Recombination ◽  
Dimethyl Carbonate ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Two Dimensional ◽  
Light Emitting ◽  
Cascade Energy

Quasi-two-dimensional (quasi-2D) perovskites have been identified as promising emitters for high-efficiency blue PeLEDs, attributed to efficient radiative recombination resulted from the cascade energy transfer from low-n phases to high-n phases....

scholarly journals Efficient Green Quasi-Two-Dimensional Perovskite Light-Emitting Diodes Based on Mix-Interlayer

2022 ◽  
Vol 9 ◽  
Author(s):  
Zirong Wang ◽  
Fanyuan Meng ◽  
Qi Feng ◽  
Shengxuan Shi ◽  
Langwen Qiu ◽  
...  
Keyword(s):  
Radiative Recombination ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Photophysical Properties ◽  
Device Performance ◽  
Two Dimensional ◽  
Obvious Effect ◽  
Light Emitting ◽  
Feasible Method ◽  
Maximum Current

Recently, quasi-two-dimensional (Q-2D) perovskites have received much attention due to their excellent photophysical properties. Phase compositions in Q-2D perovskites have obvious effect on the device performance. Here, efficient green perovskite light-emitting diodes (PeLEDs) were fabricated by employing o-fluorophenylethylammonium bromide (o-F-PEABr) and 2-aminoethanol hydrobromide (EOABr) as the mix-interlayer ligands. Phase compositions are rationally optimized through composition and interlayer engineering. Meanwhile, non-radiative recombination is greatly suppressed by the introduction of mix-interlayer ligands. Thus, green PeLEDs with a peak photoluminescence quantum yield (PLQY) of 81.4%, a narrow full width at half maximum (FWHM) of 19 nm, a maximum current efficiency (CE) of 27.7 cd/A, and a maximum external quantum efficiency (EQE) of 10.4% were realized. The results are expected to offer a feasible method to realize high-efficiency PeLEDs.

Nonblinking Quantum-Dot-Based Blue Light-Emitting Diodes with High Efficiency and a Balanced Charge-Injection Process

ACS Photonics ◽  
2018 ◽  
Vol 5 (3) ◽  
pp. 939-946 ◽  
Author(s):  
Qingli Lin ◽  
Lei Wang ◽  
Zhaohan Li ◽  
Huaibin Shen ◽  
Lijun Guo ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Blue Light ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Charge Injection ◽  
Light Emitting ◽  
Injection Process

Recent Progress in High-Efficiency Blue-Light-Emitting Materials for Organic Light-Emitting Diodes

2017 ◽  
Vol 27 (13) ◽  
pp. 1603007 ◽  
Author(s):  
Yirang Im ◽  
Seong Yong Byun ◽  
Ji Han Kim ◽  
Dong Ryun Lee ◽  
Chan Seok Oh ◽  
...  
Keyword(s):  
Blue Light ◽  
Recent Progress ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light

Excitation energy transfer in segmented ladder-type poly (para-phenylene) blue light emitting diodes

1995 ◽  
Vol 96 (3) ◽  
pp. 167-170 ◽  
Author(s):  
C. Paar ◽  
J. Stampfl ◽  
S. Tasch ◽  
H. Kreimaier ◽  
G. Leising ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Excitation Energy ◽  
Blue Light ◽  
Light Emitting Diodes ◽  
Excitation Energy Transfer ◽  
Light Emitting

High-efficiency pyrene-based blue light emitting diodes: aggregation suppression using a calixarene 3D-scaffold

2012 ◽  
Vol 48 (42) ◽  
pp. 5106 ◽  
Author(s):  
Khai Leok Chan ◽  
Jacelyn Pui Fong Lim ◽  
Xiaohui Yang ◽  
Ananth Dodabalapur ◽  
Ghassan E. Jabbour ◽  
...  
Keyword(s):  
Blue Light ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
3D Scaffold ◽  
Light Emitting

Enhancement of red organic light-emitting diodes via cascade energy transfer

2006 ◽  
Vol 37 (11) ◽  
pp. 1325-1328 ◽  
Author(s):  
Fuxiang Wei ◽  
Xiaobo Zhang ◽  
Jin Cao ◽  
M.A. Khan ◽  
Wenqing Zhu ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Cascade Energy

Colloidal Synthesis of Ternary Copper Halide Nanocrystals for High-Efficiency Deep-Blue Light-Emitting Diodes with a Half-Lifetime above 100 h

Nano Letters ◽  
2020 ◽  
Vol 20 (5) ◽  
pp. 3568-3576 ◽  
Author(s):  
Lintao Wang ◽  
Zhifeng Shi ◽  
Zhuangzhuang Ma ◽  
Dongwen Yang ◽  
Fei Zhang ◽  
...  
Keyword(s):  
Blue Light ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Colloidal Synthesis ◽  
Copper Halide ◽  
Light Emitting ◽  
Deep Blue

High-Efficiency Si-Gel-Encapsulated GaN-Based Photonic Crystal Blue Light-Emitting Diodes

2008 ◽  
Vol 52 (4) ◽  
pp. 1026-1030
Author(s):  
Sun-Kyung Kim ◽  
Hyun Kyong Cho ◽  
Junho Jang ◽  
Jeong Soo Lee ◽  
Yong-Hee Lee
Keyword(s):  
Photonic Crystal ◽  
Blue Light ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Light Emitting
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