Photoluminescence Quenching in Self-Assembled CsPbBr3 Quantum Dots on Few-Layer Black Phosphorus Sheets

被引:71
|
作者
Muduli, Subas [1 ,2 ]
Pandey, Padmini [3 ]
Devatha, Gayathri [2 ,4 ]
Babar, Rohit [1 ,2 ]
Thripuranthaka, M.
Kothari, Dushyant C. [3 ]
Kabir, Mukul [1 ,2 ]
Pillai, Pramod P. [1 ,2 ,4 ]
Ogale, Satishchandra [1 ,2 ]
机构
[1] IISER, Dept Phys, Pune Dr Homi Bhabha Rd, Pune 411008, Maharashtra, India
[2] IISER, Ctr Energy Sci, Pune Dr Homi Bhabha Rd, Pune 411008, Maharashtra, India
[3] Univ Mumbai, Natl Ctr Nanosci & Nanotechnol, Kalina Campus, Bombay 400098, Maharashtra, India
[4] IISER, Dept Chem, Pune Dr Homi Bhabha Rd, Pune 411008, Maharashtra, India
关键词
electronic structure; layered compounds; phosphorus; photoluminescence; quantum dots; ENERGY-TRANSFER; SOLAR-CELLS; PEROVSKITE NANOCRYSTALS; HALIDE PEROVSKITES; CHARGE-TRANSFER; EFFICIENT; PHOTORESPONSE; FLUORESCENCE; TEMPERATURE; EMISSION;
D O I
10.1002/anie.201712608
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
An ordered self-assembly of CsPbBr3 quantum dots (QDs) was generated on the surface of few-layer black phosphorus (FLBP). Strong quenching of the QD fluorescence was observed, and analyzed by time-resolved photoluminescence (TR-PL) studies, DFT calculations, and photoconductivity measurements Charge transfer by type I band alignment is suggested to be the cause of the observed effects.
引用
收藏
页码:7682 / 7686
页数:5
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