红外与激光工程
2022, 51(6): 20220096
1 长春理工大学物理学院,吉林 长春 130022
2 长春理工大学重庆研究院,重庆 401122
3 微光夜视技术重点实验室,陕西 西安 710018
4 昆明物理研究所,云南 昆明 650221
5 埃因霍芬理工大学光电子集成研究中心,荷兰埃因霍芬 5600 MB
6 埃及国家天文与地球物理研究所空间太阳能研究部,埃及开罗 11421
为了对电子束泵浦钙钛矿量子点器件的建模与设计提供理论支撑,探究了电子束泵浦钙钛矿量子点膜层发光的微观过程,揭示了其能量转化模型与发光机理。首先从理论层面分析了电子束泵浦钙钛矿量子点发光与激射的微观物理过程,指出电子束泵浦量子点发光的激射阈值与发光阈值是构建其能量转化模型所需检测的宏观物理约束边界。分析讨论了其激射阈值与发光阈值的有效检测方法,并多次开展了具体的评估实验。最后,结合检测物理约束边界,模拟并构建了钙钛矿量子点膜层内部发光能量转化效率、纳米晶极化分布随电子束泵浦强度变化的关系。
量子光学 钙钛矿量子点 电子束泵浦 随机激射 发光效率 极化分布 光学学报
2022, 42(19): 1927001
Author Affiliations
Abstract
1 School of Science, Changchun University of Science and Technology, Changchun 130022, China
2 Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory of UV-Emitting Materials and Technology (Northeast Normal University), Ministry of Education, Changchun 130024, China
Aiming at the application requirements of information optics, this Letter proposed a perovskite quantum dot random lasing pumping method suitable for high-speed modulation. At the same time, the luminescence characteristics of perovskite quantum dot films under electron beam pumping conditions are analyzed, and the random lasing mechanism of electron beam pumping CsPbBr3 quantum dot films is revealed. Finally, it is confirmed that perovskite quantum dots are easy to realize random lasing under electron beam pumping conditions.
perovskite quantum dots electron beam random laser Chinese Optics Letters
2020, 18(1): 011403