Artículos de revistas
Efficient Luminescence From Perovskite Quantum Dot Solids
Registro en:
Efficient Luminescence From Perovskite Quantum Dot Solids. Amer Chemical Soc, v. 7, p. 25007-25013 Nov-2015.
1944-8244
WOS:000365148600006
10.1021/acsami.5b09084
Autor
Kim
Younghoon; Yassitepe
Emre; Voznyy
Oleksandr; Comin
Riccardo; Walters
Grant; Gong
Xiwen; Kanjanaboos
Pongsakorn; Nogueira
Ana F.; Sargent
Edward H.
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) 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. 7 45
25007 25013 King Abdullah University of Science and Technology (KAUST) [KUS-11-009-21] Ontario Research Fund Research Excellence Program Natural Sciences and Engineering Research Council (NSERC) of Canada Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) FAPESP [2014/18327-9]