Journal ArticleDOI
Ultra-low EQE roll-off and marvelous efficiency perovskite quantum-dots light-emitting-diodes achieved by ligand passivation
Yuliang Ye,Wang Jiaxiang,Yinglin Qiu,Jiahui Liu,Bingqing Ye,Zunxian Yang,Zunxian Yang,Zhipeng Gong,Lei Xu,Yuanqing Zhou,Huang Qiaocan,Zihong Shen,Wenbo Wu,Songman Ju,Yu Lucheng,Yihang Fu,Fushan Li,Fushan Li,Tailiang Guo Prof.,Tailiang Guo Prof. +19 more
TLDR
In this article, perovskite quantum dots (PQDs) were employed as promising emitters in light-emitting diode devices (LEDs) mainly owing to their marvelous photoelectronics properties.About:
This article is published in Nano Energy.The article was published on 2021-12-01. It has received 10 citations till now. The article focuses on the topics: Quantum efficiency & Quantum dot.read more
Citations
More filters
Journal ArticleDOI
Approaching high-performance light-emitting devices upon perovskite quantum dots: Advances and prospects
TL;DR: In this article , a comprehensive review of recent advances towards high-performance PQD-LEDs, including the progress in preparation modification, surface engineering and composition regulation of PQDs, as well as the device architecture optimization, is presented, accompanied by potential corresponding countermeasures and future development prospects.
Journal ArticleDOI
Passivation strategies for mitigating defect challenges in halide perovskite light-emitting diodes
Xinyu Shen,Keehoon Kang,Zhong-gou Yu,Woo Hyeon Jeong,Hyosung Choi,Sung Heum Park,Samuel D. Stranks,Henry J. Snaith,Richard H. Friend,Bo Ram Lee +9 more
Journal ArticleDOI
Stabilizing dynamic surface of highly luminescent perovskite quantum dots for light-emitting diodes
TL;DR: In this paper , a zwitterionic molecule, Betaine (BET), is introduced to stabilize the dynamic surface and simultaneously passivate the surface defects of QDs.
Journal ArticleDOI
Performance Enhancement of Quantum Dot Light-Emitting Diodes via Surface Modification of the Emitting Layer
Performance Enhancement of Quantum Dot Light-Emitting Diodes via Surface Modification of the Emitting Layer
Yinglin Qiu,Zhi-Hui Gong,Lei Xu,Qiaocan Huang,Zunxian Yang,Bingqing Ye,Yuliang Ye,Zongyi Meng,Zhiwei Zeng,Zihong Shen,Wenbo Wu,Yuanqing Zhou,Zeqian Hong,Z. Cheng,Songwei Ye,Hongyi Hong,Qianting Lan,Fushan Li,Tailiang Guo,Sheng Xu +19 more
References
More filters
Journal ArticleDOI
Bidentate Ligand-Passivated CsPbI3 Perovskite Nanocrystals for Stable Near-Unity Photoluminescence Quantum Yield and Efficient Red Light-Emitting Diodes.
Jun Pan,Yuequn Shang,Jun Yin,Michele De Bastiani,Wei Peng,Ibrahim Dursun,Lutfan Sinatra,Ahmed M. El-Zohry,Mohamed N. Hedhili,Abdul-Hamid M. Emwas,Omar F. Mohammed,Zhijun Ning,Osman M. Bakr +12 more
TL;DR: The postsynthesis passivation process for CsPbI3 NCs is developed by using a bidentate ligand, namely 2,2'-iminodibenzoic acid, which enables the passivated NCs to realize red light-emitting diodes (LEDs) with 5.02% external quantum efficiency and 748 cd/m2 luminance, surpassing by far LEDs made from the nonpassivating NCs.
Journal ArticleDOI
Bipolar-shell resurfacing for blue LEDs based on strongly confined perovskite quantum dots
Yitong Dong,Ya-Kun Wang,Ya-Kun Wang,Fanglong Yuan,Andrew Johnston,Yuan Liu,Dongxin Ma,Min-Jae Choi,Bin Chen,Mahshid Chekini,Se-Woong Baek,Se-Woong Baek,Laxmi Kishore Sagar,James Z. Fan,Yi Hou,Mingjian Wu,Seungjin Lee,Bin Sun,Sjoerd Hoogland,Rafael Quintero-Bermudez,Hinako Ebe,Petar Todorović,Filip Dinic,Peicheng Li,Hao Ting Kung,Makhsud I. Saidaminov,Makhsud I. Saidaminov,Eugenia Kumacheva,Erdmann Spiecker,Liang-Sheng Liao,Oleksandr Voznyy,Zheng-Hong Lu,Edward H. Sargent +32 more
TL;DR: Perovskite QD resurfacing is reported to achieve a bipolar shell consisting of an inner anion shell, and an outer shell comprised of cations and polar solvent molecules, to fabricate blue and green light-emitting diodes with improved mobility.
Journal ArticleDOI
All-perovskite tandem solar cells with 24.2% certified efficiency and area over 1 cm2 using surface-anchoring zwitterionic antioxidant
Ke Xiao,Renxing Lin,Qiaolei Han,Yi Hou,Zhenyuan Qin,Hieu T. Nguyen,Jin Wen,Mingyang Wei,Vishal Yeddu,Makhsud I. Saidaminov,Yuan Gao,Xin Luo,Y.N. Wang,Han Gao,Chunfeng Zhang,Jun Xu,Jia Zhu,Edward H. Sargent,Hairen Tan +18 more
TL;DR: Xiao et al. as mentioned in this paper used strongly reductive surface-anchoring zwitterionic molecules to suppress Sn2+ oxidation and passivate defects at the grain surfaces in mixed lead-tin perovskite films, enabling an efficiency of 21.7% (certified 20.7%).
Journal ArticleDOI
Room-Temperature Triple-Ligand Surface Engineering Synergistically Boosts Ink Stability, Recombination Dynamics, and Charge Injection toward EQE-11.6% Perovskite QLEDs
Jizhong Song,Jinhang Li,Leimeng Xu,Jianhai Li,Fengjuan Zhang,Boning Han,Qingsong Shan,Haibo Zeng +7 more
TL;DR: A room-temperature triple-ligand surface engineering strategy to play the synergistic role of short ligands of tetraoctylammonium bromide, DDAB, and octanoic acid toward "ideal" perovskite QDs results in the highly efficient QD-based LEDs (QLEDs).
Journal ArticleDOI
Organic-Inorganic Hybrid Passivation Enables Perovskite QLEDs with an EQE of 16.48.
Jizhong Song,Tao Fang,Jianhai Li,Leimeng Xu,Fengjuan Zhang,Boning Han,Qingsong Shan,Haibo Zeng +7 more
TL;DR: The proposed OIHL passivation strategy positions perovskite QDs as an extremely promising prospect in future applications of high-definition displays, high-quality lightings, as well as solar cells.