少层黑磷片上自组装 CsPbBr 量子点中的光致发光猝灭
Photoluminescence Quenching in Self-Assembled CsPbBr Quantum Dots on Few-Layer Black Phosphorus Sheets.
作者信息
Muduli Subas, Pandey Padmini, Devatha Gayathri, Babar Rohit, M Thripuranthaka, Kothari Dushyant C, Kabir Mukul, Pillai Pramod P, Ogale Satishchandra
机构信息
Department of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pune, 411008, India.
National Centre of Nanosciences and Nanotechnology, University of Mumbai, Kalina campus, Vidyanagari, Santacruz (E), Mumbai, 400098, India.
出版信息
Angew Chem Int Ed Engl. 2018 Jun 25;57(26):7682-7686. doi: 10.1002/anie.201712608. Epub 2018 May 28.
An ordered self-assembly of CsPbBr 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.
在少层黑磷（FLBP）表面生成了CsPbBr量子点（QDs）的有序自组装结构。观察到量子点荧光的强烈猝灭，并通过时间分辨光致发光（TR-PL）研究、密度泛函理论（DFT）计算和光电导率测量进行了分析。I型能带排列的电荷转移被认为是观察到的这些效应的原因。
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