Journal of Colloid and Interface Science 461 (2016) 162–167 Contents lists available at ScienceDirect Journal of Colloid and Interface Science journal homepage: www.elsevier.com/locate/jcis Short Communication Synthesis of tunable-band-gap ‘‘Open-Box” halide perovskites by use of anion exchange and internal dissolution procedures a,b,1 a,1 a a,⇑ Zhengcui Wu , Baohua Wang , Jian He , Tao Chen Department of Physics, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China Anhui Key Laboratory of Molecule-Based Materials, The Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China graphical a bstract ar ti c l e i nf o ab stra ct Article history: We demonstrate the synthesis of cuboid MAPbBr (MA = CH NH ) microcrystals and subsequent conver- 3 3 3 Received 22 July 2015 sion into open-box-like MAPb(Br I ) (0 6 x 6 1) microcrystals by anion exchange in MAI solution. 1x x 3 Revised 1 September 2015 During the substitution of Br with I , the initial cuboid framework of MAPbBr crystals is retained. Accepted 1 September 2015 The preferential internal dissolution of MAPbBr due to the surface coverage and protection of MAPb Available
Journal of Colloid and Interface Science – Elsevier
Published: Jan 1, 2016
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