Room-Temperature Synthesis of Air-Stable Near-Infrared Emission in FAPbI3 Nanoparticles Embedded in Silica

Biosensors

Yi-Ting Lee¹  Li-Wei Chao²  Lung-Chien Chen²  Zi-Min Xu²  Zong-Liang Tseng³  Chen-Yu Xu³  Chun-Cheng Lin⁴  Chih-Hung Hsu⁵ 

[1] Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, 744 Motooka, Nishi, Fukuoka 819-0395, Japan;Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei 106344, Taiwan;Department of Electronic Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan;Department of Mathematic and Physical Sciences, General Education, R.O.C. Air Force Academy, Kaohsiung 82047, Taiwan;Giant-Tek Corporation, Miaoli County 35048, Taiwan;

关键词: perovskite;    nanocrystals;    APTES;    CH(NH₂)₂PbI₃;    FAPbI₃;    NIR;   

DOI  :  10.3390/bios11110440

来源: DOAJ

【 摘 要 】

Hybrid organic−inorganic and all-inorganic metal halide perovskite nanoparticles (PNPs) have shown their excellent characteristics for optoelectronic applications. We report an atmospheric process to embed formamidinium CH(NH₂)₂PbI₃ (FAPbI₃) PNPs in silica protective layer at room temperature (approximately 26 °C) employing (3-aminopropyl) triethoxysilane (APTES). The resulting perovskite nanocomposite (PNCs) achieved a high photoluminescence (PL) quantum yield of 58.0% and good stability under atmospheric moisture conditions. Moreover, the PNCs showed high PL intensity over 1 month of storage (approximately 26 °C) and more than 380 min of PNCs solutions in DI water. The studied near-infrared (NIR) light-emitting diode (LED) combined a NIR-emitting PNCs coating and a blue InGaN-based chip that exhibited a 788 nm electroluminescence spectrum of NIR-LEDs under 2.6 V. This may be a powerful tool to track of muscle and disabled patients in the detection of a blood vessel.

【 授权许可】

Unknown