Year
Month
(Peer-Reviewed) Nano-buffer controlled electron tunneling to regulate heterojunctional interface emission
Wei Liu 刘威, Zhuxin Li 李竹新, Zengliang Shi 石增良, Ru Wang 王茹, Yizhi Zhu 朱益志, Chunxiang Xu 徐春祥
State Key Laboratory of Bioelectronics, School of Biological Sciences & Medical Engineering, Southeast University, Nanjing 210096, China
中国 南京 东南大学生物科学与医学工程学院 生物电子学国家重点实验室
Opto-Electronic Advances, 2021-09-25
Abstract

Interface emission from heterojunction is a shortcoming for electroluminescent devices. A buffer layer introduced in the heterojunctional interfaces is a potential solution for the challenge. However, the dynamics for carrier tunneling to control the interface emission is still a mystery. Herein, the low-refractive HfO₂ with a proper energy band configuration is employed as the buffer layer in achieving ZnO-microwire/HfO₂/GaN heterojunctional light-emitting diodes (LEDs).

The optically pumped lasing threshold and lifetime of the ZnO microwire are reduced with the introduced HfO₂ layer. As a result, the interface emission is of blue-shift from visible wavelengths to 394 nm whereas the ultraviolet (UV) emission is enhanced. To regulate the interface recombination between electrons in the conduction band of ZnO and holes in the valence band of GaN, the tunneling electrons with higher conduction band are employed to produce a higher tunneling current through regulation of thin HfO₂ film causing blue shift and interface emission enhancement.

Our results provide a method to control the tunneling electrons in heterojunction for high-performance LEDs.
Nano-buffer controlled electron tunneling to regulate heterojunctional interface emission_1
Nano-buffer controlled electron tunneling to regulate heterojunctional interface emission_2
Nano-buffer controlled electron tunneling to regulate heterojunctional interface emission_3
  • Power grid fault diagnosis based on a deep pyramid convolutional neural network
  • Xu Zhang 张旭, Huiting Zhang, Dongying Zhang, Yixian Wang, Ruiting Ding, Yuchuan Zheng, Yongxu Zhang
  • CSEE Journal of Power and Energy Systems
  • 2022-05-06
  • China's factor reallocation effect considering energy
  • Guangqing Xu, Xiaoyu Chen
  • Chinese Journal of Population, Resources and Environment
  • 2022-05-02
  • Cannabidiol prevents depressive-like behaviors through the modulation of neural stem cell differentiation
  • Ming Hou, Suji Wang, Dandan Yu, Xinyi Lu, Xiansen Zhao, Zhangpeng Chen, Chao Yan
  • Frontiers of Medicine
  • 2022-04-26
  • Cultivation of gut microorganisms of the marine ascidian Halocynthia roretzi reveals their potential roles in the environmental adaptation of their host
  • Yang Yang, Yuting Zhu, Haiming Liu, Jiankai Wei, Haiyan Yu, Bo Dong
  • Marine Life Science & Technology
  • 2022-04-26
  • Data network traffic analysis and optimization strategy of real-time power grid dynamic monitoring system for wide-frequency measurements
  • Jinsong Li, Hao Liu, Wenzhuo Li, Tianshu Bi, Mingyang Zhao
  • Global Energy Interconnection
  • 2022-04-25
  • Field distribution of the Z₂ topological edge state revealed by cathodoluminescence nanoscopy
  • Xiao He, Donglin Liu, Hongfei Wang, Liheng Zheng, Bo Xu, Biye Xie, Meiling Jiang, Zhixin Liu, Jin Zhang, Minghui Lu, Zheyu Fang
  • Opto-Electronic Advances
  • 2022-04-25
  • Advances in femtosecond laser direct writing of fiber Bragg gratings in multicore fibers: technology, sensor and laser applications
  • Alexey Wolf, Alexander Dostovalov, Kirill Bronnikov, Mikhail Skvortsov, Stefan Wabnitz, Sergey Babin
  • Opto-Electronic Advances
  • 2022-04-25
  • Graphene-empowered dynamic metasurfaces and metadevices
  • Chao Zeng, Hua Lu, Dong Mao, Yueqing Du, He Hua, Wei Zhao, Jianlin Zhao
  • Opto-Electronic Advances
  • 2022-04-25
  • Charge carrier dynamics in different crystal phases of CH₃NH₃PbI₃ perovskite
  • Efthymis Serpetzoglou, Ioannis Konidakis, George Kourmoulakis, Ioanna Demeridou, Konstantinos Chatzimanolis, Christos Zervos, George Kioseoglou, Emmanuel Kymakis, Emmanuel Stratakis
  • Opto-Electronic Science
  • 2022-04-21
  • Applications of optically and electrically driven nanoscale bowtie antennas
  • Zhongjun Jiang, Yingjian Liu, Liang Wang
  • Opto-Electronic Science
  • 2022-04-20
  • Validation of the bodily expressive action stimulus test among Chinese adults and children
  • Yunmei Yang, Wenwen Hou, Jing Li
  • PsyCh Journal
  • 2022-04-17



  • Testing Regression Coefficients in High-Dimensional and Sparse Settings                                Synchronization in PT-symmetric optomechanical resonators
    About
    |
    Contact
    |
    Copyright © PubCard