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Type: | Artigo |
Title: | Efficient luminescence from perovskite quantum dot solids |
Author: | Kim, Younghoon Yassitepe, Emre Voznyy, Oleksandr Comin, Riccardo Walters, Grant Gong, Xiwen Kanjanaboos, Pongsakorn Nogueira, Ana F. Sargent, Edward H. |
Abstract: | Nanocrystals of CsPbX3 perovskites are promising materials for light-emitting optoelectronics because of their colloidal stability, optically tunable bandgap, bright photoluminescence, and excellent photoluminescence quantum yield. Despite their promise, nanocrystal-only films of CsPbX3 perovskites have not yet been fabricated; instead, highly insulating polymers have been relied upon to compensate for nanocrystals unstable surfaces. We develop solution chemistry that enables single-step casting of perovskite nanocrystal films and overcomes problems in both perovskite quantum dot purification and film fabrication. Centrifugally cast films retain bright photoluminescence and achieve dense and homogeneous morphologies. The new materials offer a platform for optoelectronic applications of perovskite quantum dot solids |
Subject: | Perovskitas duplas Pontos quânticos Nanocristais |
Country: | Estados Unidos |
Editor: | American Chemical Society |
Rights: | Fechado |
Identifier DOI: | 10.1021/acsami.5b09084 |
Address: | https://pubs.acs.org/doi/10.1021/acsami.5b09084 |
Date Issue: | 2015 |
Appears in Collections: | IQ - Artigos e Outros Documentos |
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