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Atomically thin two-dimensional organic-inorganic hybrid perovskites

2015; American Association for the Advancement of Science; Volume: 349; Issue: 6255 Linguagem: Inglês

10.1126/science.aac7660

1095-9203

Letian Dou, Andrew Barnabas Wong, Yi Yu, Minliang Lai, Nikolay Kornienko, Samuel W. Eaton, Anthony Fu, Connor G. Bischak, Jie Ma, Tina X. Ding, Naomi S. Ginsberg, Lin‐Wang Wang, A. Paul Alivisatos, Peidong Yang,

Quantum Dots Synthesis And Properties

Flat perovskite crystals Bulk crystals and thick films of inorganic-organic perovskite materials such as CH 3 NH 3 PbI 3 have shown promise as active material for solar cells. Dou et al. show that thin films—a single unit cell or a few unit cells thick—of a related composition, (C 4 H 9 NH 3 ) 2 PbBr 4 , form squares with edges several micrometers long. These materials exhibit strong and tunable blue photoluminescence. Science , this issue p. 1518