Simultaneous Phase Distribution Reconstruct and Defect Passivation for Efficient Quasi-2D Perovskite Light-Emitting Diodes

被引：0

作者：

Chai, Xiaomei ^{[1
,2
]}

Liu, Anqi ^{[1
,2
]}

Lu, Min ^{[1
,2
]}

Sun, Siqi ^{[1
,2
]}

Zhu, Zixuan ^{[1
,2
]}

Gao, Yanbo ^{[1
,2
]}

Zhang, Yu ^{[1
,2
]}

Wu, Zhennan ^{[1
,2
]}

Bai, Xue ^{[1
,2
]}

机构：

[1] Jilin Univ, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China

[2] Jilin Univ, Coll Elect Sci & Engn, Changchun 130012, Peoples R China

来源：

IEEE ELECTRON DEVICE LETTERS | 2024年 / 45卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Perovskites; Films; Light emitting diodes; X-ray diffraction; Lead; Absorption; X-ray scattering; quasi-two-dimensional; light-emitting diodes; phase distribution; defect passivation;

D O I：

10.1109/LED.2024.3353292

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Quasi-two-dimensional (Q-2D) Ruddlesden-Popper perovskites have excellent optical performance due to self-assembling multiple quantum well structure. However, Q-2D perovskites usually contain a disordered phase distribution, which results in low emission efficiency. In this work, we introduced the 2-aminohexane ligand into the Q-2D perovskite films, reconstructed the phase distribution of the films. In addition, the defects were passivated after introducing the ligand, resulting in low trap density, so as to obtain high-quality Q-2D perovskite films. With this approach, the Q-2D perovskite light-emitting diodes (PeLEDs) achieved a maximum brightness of 187,869 cd m-2 and a peak external quantum efficiency of 21.6%.

引用

页码：432 / 435

页数：4

共 27 条

[1] Electrically driven amplified spontaneous emission from colloidal quantum dots [J].

Ahn, Namyoung ;

Livache, Clement ;

Pinchetti, Valerio ;

Jung, Heeyoung ;

Jin, Ho ;

Hahm, Donghyo ;

Park, Young-Shin ;

Klimov, Victor I. .

NATURE, 2023, 617 (7959) :79-+

[2] Molecular Bridging Strategy Enables High Performance and Stable Quasi-2D Perovskite Light-Emitting Devices [J].

Bao, Xinyu ;

Gao, Yanbo ;

Liu, Yue ;

Xu, Zehua ;

Zhang, Fujun ;

Lu, Min ;

Wu, Zhennan ;

Wu, Yanjie ;

Wang, Quan ;

Zhang, Yu ;

Wang, Yinghui ;

Shi, Zhifeng ;

Hu, Junhua ;

Bai, Xue .

ACS ENERGY LETTERS, 2023, 8 (02) :1018-1025

[3] Efficient Visible Quasi-2D Perovskite Light-Emitting Diodes [J].

Byun, Jinwoo ;

Cho, Himchan ;

Wolf, Christoph ;

Jang, Mi ;

Sadhanala, Aditya ;

Friend, Richard H. ;

Yang, Hoichang ;

Lee, Tae-Woo .

ADVANCED MATERIALS, 2016, 28 (34) :7515-7520

[4] Amino Acid-Passivated Pure Red CsPbI3 Quantum Dot LEDs [J].

Chen, Dezhang ;

Ko, Pui Kei ;

Li, C-H Angus ;

Zou, Bosen ;

Geng, Pai ;

Guo, Liang ;

Halpert, Jonathan E. .

ACS ENERGY LETTERS, 2023, 8 (01) :410-416

[5] Improving Efficiency and Stability of Perovskite Solar Cells by Modifying Mesoporous TiO2-Perovskite Interfaces with Both Aminocaproic and Caproic acids [J].

Chen, Ruihao ;

Cao, Jing ;

Wu, Youyunqi ;

Jing, Xiaojing ;

Wu, Binghui ;

Zheng, Nanfeng .

ADVANCED MATERIALS INTERFACES, 2017, 4 (23)

[6] The Effect of the Alkyl Chains of the Alkylammonium Pesudohalide Additives on the Performance of Dion Jacobson Perovskite Solar Cells [J].

Cui, Xiaodan ;

Zhang, Hui ;

Duan, Jianing ;

Dong, Jingjin ;

Xi, Jun ;

Shao, Shuyan ;

Fei, Zhuping ;

Li, Zhen .

SMALL, 2023, 19 (41)

[7] Electron-hole diffusion lengths > 175 μm in solution-grown CH3NH3PbI3 single crystals [J].

Dong, Qingfeng ;

Fang, Yanjun ;

Shao, Yuchuan ;

Mulligan, Padhraic ;

Qiu, Jie ;

Cao, Lei ;

Huang, Jinsong .

SCIENCE, 2015, 347 (6225) :967-970

[8] High-Performance Perovskite Light-Emitting Diodes Enabled by Passivating Defect and Constructing Dual Energy-Transfer Pathway through Functional Perovskite Nanocrystals [J].

Gao, Yanbo ;

Liu, Yue ;

Zhang, Fujun ;

Bao, Xinyu ;

Xu, Zehua ;

Bai, Xue ;

Lu, Min ;

Wu, Yanjie ;

Wu, Zhennan ;

Zhang, Ye ;

Wang, Quan ;

Gao, Xiujun ;

Wang, Yinghui ;

Shi, Zhifeng ;

Hu, Junhua ;

Yu, William W. ;

Zhang, Yu .

ADVANCED MATERIALS, 2022, 34 (43)

[9] Tautomeric mixture coordination enables efficient lead-free perovskite LEDs [J].

Han, Dongyuan ;

Wang, Jie ;

Agosta, Lorenzo ;

Zang, Ziang ;

Zhao, Bin ;

Kong, Lingmei ;

Lu, Haizhou ;

Mosquera-Lois, Irea ;

Carnevali, Virginia ;

Dong, Jianchao ;

Zhou, Jianheng ;

Ji, Huiyu ;

Pfeifer, Lukas ;

Zakeeruddin, Shaik M. ;

Yang, Yingguo ;

Wu, Bo ;

Rothlisberger, Ursula ;

Yang, Xuyong ;

Gratzel, Michael ;

Wang, Ning .

NATURE, 2023, 622 (7983) :493-+

[10] Antisolvent Additive Engineering for Boosting Performance and Stability of Graded Heterojunction Perovskite Solar Cells Using Amide-Functionalized Graphene Quantum Dots [J].

Khorshidi, Elahe ;

Rezaei, Behzad ;

Kavousighahfarokhi, Arash ;

Hanisch, Jonas ;

Reus, Manuel A. ;

Muller-Buschbaum, Peter ;

Ameri, Tayebeh .

ACS APPLIED MATERIALS & INTERFACES, 2022, 14 (49) :54623-54634

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