Growth and Anion Exchange Conversion of CH 3 NH 3 PbX 3 Nanorod Arrays for Light-Emitting Diodes
2015; American Chemical Society; Volume: 15; Issue: 8 Linguagem: Inglês
10.1021/acs.nanolett.5b02082
ISSN1530-6992
AutoresAndrew Barnabas Wong, Minliang Lai, Samuel W. Eaton, Yi Yu, Elbert Lin, Letian Dou, Anthony Fu, Peidong Yang,
Tópico(s)Solid-state spectroscopy and crystallography
ResumoThe nanowire and nanorod morphology offers great advantages for application in a range of optoelectronic devices, but these high-quality nanorod arrays are typically based on high temperature growth techniques. Here, we demonstrate the successful room temperature growth of a hybrid perovskite (CH3NH3PbBr3) nanorod array, and we also introduce a new low temperature anion exchange technique to convert the CH3NH3PbBr3 nanorod array into a CH3NH3PbI3 nanorod array while preserving morphology. We demonstrate the application of both these hybrid perovskite nanorod arrays for LEDs. This work highlights the potential utility of postsynthetic interconversion of hybrid perovskites for nanostructured optoelectronic devices such as LEDs, which enables new strategies for the application of hybrid perovskites.
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