期刊
PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION
卷 36, 期 12, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ppsc.201900328
关键词
amino acids; ligand toxicity; luminescence; perovskite nanocrystals; stability
资金
- Indian Institute of Technology Roorkee
- Department of Science & Technology, New Delhi, India [SB/FT/CS-135/2012]
- Council of Scientific & Industrial Research, New Delhi, India [01(2990)/19/EMR-II]
- MHRD, India
- UGC, India
This work reports the first synthesis of MAPbBr(3) perovskite nanocrystals (PNCs) using amino acids as the ligand with excellent optical properties. A variety of amino acids are used to optimize the luminescence properties. A mechanochemical approach has taken lead over conventional colloidal chemistry during synthesis. All morphological and optical studies are performed to characterize the synthesized perovskite nanoparticles. Later, stability studies are investigated through thermogravimetric analysis, temperature-dependent photoluminescence, time-dependent X-ray diffraction, as well as X-ray photoelectron spectroscopy. In an application, interestingly, these perovskites show high luminescence upon scratching on flexible conducting plates and on plain paper surface. These results suggest that the amino acid-ligated perovskite nanocrystals can be potential materials for optoelectronic application including light-emitting diodes and imaging.
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