Water-stable CsPbBr3 perovskite quantum-dot luminous fibers fabricated by centrifugal spinning for dual white light illumination and communication

作     者：BINHAI YU SHUNMING LIANG FENGYI ZHANG ZONGTAO LI BIN LIU XINRUI DING 

作者机构：National and Local Joint Engineering Research Center of Semiconductor Display and Optical Communication DevicesSouth China University of TechnologyGuangzhou 510641China Provincial Key Laboratory of Semiconductor Micro DisplayFoshan Nationstar Optoelectronics Company Ltd.Foshan 528000China Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical InstrumentSchool of Biomedical EngineeringSun Yat-sen UniversityGuangzhou 510006China 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2021年第9卷第8期

页      面：1559-1568页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：National Natural Science Foundation of China(51805173,51533003) Natural Science Foundation of Guangdong Province(2019A1515011741) The Science and Technology Program of Guangzhou(201904010252) The Project of the National and Local Joint Engineering Research Center of Semiconductor Display and Optical Communication(Zhongshan Branch)(190919172214566)。 

主　　题：communication fibers spinning 

摘      要：Lead halide perovskite quantum dots(PQDs)display remarkable photoelectric performance.However,defects such as weak stability in air and water environments limit the development of lead halide PQDs in solid-state light applications.Herein,centrifugal spinning is used for the fabrication of stable luminous CsPbBr3 PQD nanofibers.After immersion in water for 11 months,the PQD fibers still maintained considerable photoluminescence quantum yield,showing high stability in hostile environments.The water-stability mechanism of the fibers can be explained by the changing defect density,crystal growth of PQDs,and the molecular transformation at the fiber surface.The white LED based on the CsPbBr3 fibers exhibits satisfying color gamut performance(128%of National Television System Committee).Due to the short photoluminescence lifetime of CsPbBr3 PQDs,the communication potential is also considered.The CsPbBr3 fibers obtained by centrifugal spinning present a bandwidth of 11.2 MHz,showing promising performance for solid-state light and visible light communication applications.