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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
Country: Estados Unidos
Editor: American Chemical Society
Rights: Fechado
Identifier DOI: 10.1021/acsami.5b09084
Date Issue: 2015
Appears in Collections:IQ - Artigos e Outros Documentos

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