Glass-compatible and self-powered temperature alarm system by temperature-responsive organic manganese halides via backward energy transfer process
2022; Elsevier BV; Volume: 78; Linguagem: Inglês
10.1016/j.jechem.2022.09.036
ISSN2096-885X
AutoresPengfei Xia, Fan Liu, Yuru Duan, Xuefang Hu, Changgui Lü, Shuhong Xu, Chunlei Wang,
Tópico(s)Organic Light-Emitting Diodes Research
ResumoA pioneering glass-compatible transparent temperature alarm system self-powered by luminescent solar concentrators (LSCs) is reported. Single green-emitted organic manganese halides (OMHs) of PEA2MnBr2I2, which has a unique temperature-dependent backward energy transfer process from self-trapped state to 4T1 energy level of Mn, is used for triggering the temperature alarm. The LSC with red-emitted CsPbI3 perovskite-polymer composite films on the glass substrate is used for power supply. The spectrally separated nature between the green-emitted OMHs for temperature alarm and red-emitted CsPbI3 in LSC for power supply allows for probing the signal light of temperature-responsive OMHs without the interference of LSCs, making it possible to calibrate the temperature visually just by a self-powered brightness detection circuit with LED indicators. Taking advantage of LSC without hot spot effects plaguing the solar cells, as-prepared temperature alarm system can operate well on both sunny and cloudy day.
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