TY - JOUR
T1 - Efficient Luminescence from Perovskite Quantum Dot Solids
AU - Kim, Younghoon
AU - Yassitepe, Emre
AU - Voznyy, Oleksandr
AU - Comin, Riccardo
AU - Walters, Grant
AU - Gong, Xiwen
AU - Kanjanaboos, Pongsakorn
AU - Nogueira, Ana F.
AU - Sargent, Edward H.
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUS-11-009-21
Acknowledgements: This publication is based in part on work supported by Award KUS-11-009-21, made by King Abdullah University of Science and Technology (KAUST), by the Ontario Research Fund Research Excellence Program, and by the Natural Sciences and Engineering Research Council (NSERC) of Canada. E.Y. acknowledges support from Sao Paulo State Research Foundation-Research Internships Abroad (FAPESP-BEPE) (2014/18327-9) fellowship. The authors thank E. Palmiano, R. Wolowiec, and D. Kopilovic for their technical help over the course of this study. We thank the Centre for Microfluidic Systems in Chemistry and Biology (Toronto, Ontario) for the use of an atomic force microscope.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.
PY - 2015/11/5
Y1 - 2015/11/5
N2 - © 2015 American Chemical Society. 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.
AB - © 2015 American Chemical Society. 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.
UR - http://hdl.handle.net/10754/598109
UR - https://pubs.acs.org/doi/10.1021/acsami.5b09084
UR - http://www.scopus.com/inward/record.url?scp=84947904451&partnerID=8YFLogxK
U2 - 10.1021/acsami.5b09084
DO - 10.1021/acsami.5b09084
M3 - Article
C2 - 26529572
SN - 1944-8244
VL - 7
SP - 25007
EP - 25013
JO - ACS Applied Materials & Interfaces
JF - ACS Applied Materials & Interfaces
IS - 45
ER -