首页|Nanoscale cathodoluminescence spectroscopy probing the nitride quantum wells in an electron microscope

Nanoscale cathodoluminescence spectroscopy probing the nitride quantum wells in an electron microscope

扫码查看
原文链接
  • 万方数据
  • 维普
To gain further understanding of the luminescence properties of multiquantum wells and the factors affecting them on a microscopic level,cathodoluminescence combined with scanning transmission electron microscopy and spectroscopy was used to measure the luminescence of In0.15Ga0.85N five-period multiquantum wells.The lattice-composition-energy relationship was established with the help of energy-dispersive x-ray spectroscopy,and the bandgaps of In0.15Ga0.85N and GaN in multiple quantum wells were extracted by electron energy loss spectroscopy to understand the features of cathodoluminescence spectra.The luminescence differences between different periods of multiquantum wells and the effects of defects such as composition fluctuation and dislocations on the luminescence of multiple quantum wells were revealed.Our study establishing the direct relationship between the atomic structure of InxGa1-xN multiquantum wells and photoelectric properties provides useful information for nitride applications.

nitride multiquantum wellsdefectcathodoluminescencescanning transmission electron mi-croscopy

刘哲彤、刘秉尧、梁冬冬、李晓梅、李晓敏、陈莉、朱瑞、徐军、魏同波、白雪冬、高鹏

展开 >

Electron Microscopy Laboratory,School of Physics,Peking University,Beijing 100871,China

Academy for Advanced Interdisciplinary Studies,Peking University,Beijing 100871,China

Research and Development Center for Semiconductor Lighting Technology,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China

Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China

Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China

International Center for Quantum Materials,Peking University,Beijing 100871,China

展开 >

Projct supported by the National Key Research and Development Program of China国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金the"2011 Program"from the Peking-Tsinghua-IOP Collaborative Innovation Center of Quantum Matter,and the Youth Supporting ProgramElectron Microscopy Laboratory of Peking University and Institute of Physics of Chinese Academy of Sciences for the use of elect

2019YFA07082021197402352021006619741391207436912104017

2024

10.1088/1674-1056/ad1c56

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(3)
  • 42