Perovskite quantum dots for light-emitting devices

被引:121
作者
Li, Yun-Fei [1 ]
Feng, Jing [2 ]
Sun, Hong-Bo [2 ,3 ]
机构
[1] Hebei Univ Technol, Sch Elect & Informat Engn, Tianjin Key Lab Elect Mat & Devices, 5340 Xiping Rd, Tianjin 300401, Peoples R China
[2] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, 2699 Qianjin St, Changchun 130012, Jilin, Peoples R China
[3] Tsinghua Univ, Dept Precis Instrument, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China
基金
中国国家自然科学基金;
关键词
ORGANIC-INORGANIC PEROVSKITE; LEAD-FREE; ANION-EXCHANGE; PHOTOLUMINESCENCE PROPERTIES; SEMICONDUCTOR CLUSTERS; BRIGHTLY LUMINESCENT; OPTICAL-PROPERTIES; DEFECT-TOLERANCE; HIGH-PERFORMANCE; NANOCRYSTALS;
D O I
10.1039/c9nr06191f
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Perovskite quantum dots (QDs) have been hotly pursued in recent decades owing to their quantum confinement effect and defect-tolerant nature. Their unique optical properties, such as high photoluminescence quantum yield (PLQY) approaching unity, narrow emission bandwidth, tunable wavelength spanning the entire visible spectrum, and compatibility with flexible/stretchable electronics, render perovskite QDs promising for next-generation solid lighting sources and information displays. Herein, the advances in perovskite QDs and their applications in LEDs are reviewed. Strategies to fabricate efficient perovskite QDs and device configuration, including material composition design, synthetic methods, surface engineering, and device optimization, are investigated and highlighted. Moreover, the main challenges in perovskite QDs of instability and toxicity (lead-based) are identified, while the solutions undertaken with respect to composition engineering, device encapsulation, and lead-replacement QDs are demonstrated. Meanwhile, perspectives for the further development of perovskite QDs and corresponding LEDs are presented.
引用
收藏
页码:19119 / 19139
页数:21
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