文献类型：期刊文献

英文题名：Robust salt-shelled metal halide for highly efficient photoluminescence and wearable real-time human motion perception

作者：Chen, Long[1,2];He, Meng[2];Gong, Wenbin[4];Hu, Peiying[2];Yuan, Shuanglong[1];Chen, Aiping[1];Wei, Lei[3];Zhang, Qichong[2];Li, Qingwen[2]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Key Lab Multifunct Nanomat & Smart Syst, Suzhou 215123, Peoples R China;[3]Nanyang Technol Univ, Sch Elect & Elect Engn, 50 Nanyang Ave, Singapore 639798, Singapore;[4]Xuzhou Univ Technol, Sch Phys & Energy, Xuzhou 221018, Peoples R China

年份：2023

卷号：108

外文期刊名：NANO ENERGY

收录：;EI(收录号：20231113710227);WOS:【SCI-EXPANDED(收录号:WOS:000963975000001)】；

基金：This work was supported by the Jiangsu Province Youth Fund (E2312101) , Suzhou Institute of Nano -Tech and Nano -Bionics, Chinese Academy of Sciences (Start-up grant E1552102) . This work was sup- ported by the Singapore Ministry of Education Academic Research Fund Tier 2 (MOE2019-T2-2-127 and MOE-T2EP50120-0002) , the Singapore Ministry of Education Academic Research Fund Tier 1 (RG62/22) , and A*STAR under AME IRG (A2083c0062) . This work was also supported by NTU-PSL Joint Lab collaboration.

语种：英文

外文关键词：Metal halide solids; High quantum yield; Positive friction materials; Triboelectric nanogenerators; Photoluminescent sensors

摘要：All-inorganic metal halide perovskites (MHPs) with the formula CsPbX3 (X = Cl-, Br-, I-) have excellent photo-physical properties and low-cost fabrication, offering exciting opportunities for flexible electronics. However, the suboptimal quantum yield and inferior stability of solid-state MHPs impede their diverse wearable applications. Here, a straightforward water evaporation crystallization strategy for the preparation of salt-shelled metal halide solids is proposed. The well-designed CsPbBr3@KBr material exhibits narrow green photoluminescence (full-width at half-maximum similar to 20 nm), high quantum yield (87.3 %), and favourable light irradiation and thermal stability. Thus, their applications in waterborne transparency inks and flexible photoluminescent films are demonstrated. Especially, they can be employed as fillers of polyvinyl alcohol (PVA) for high-performance positive friction materials in triboelectric nanogenerators (TENGs), and the output performance of the TENG is 2.3 times higher than the pristine one. As a proof-of-concept, a wearable photoluminescent sensor with a voltage response range of 0-100 kPa and a response time of 125 ms is constructed, which can potentially be served as a passive sensor-in-screen configuration to detect motions of various parts of the human body. It is believed that such metal halides will unleash the possibility of a broad variety of applications in lightweight and multifunctional wearable electronics.