@misc{10498/26884,
year = {2022},
month = {5},
url = {http://hdl.handle.net/10498/26884},
abstract = {In this work, we present a series of porous, honeycomb-patterned polymer films containing CsPbBr3 perovskite nanocrystals as light emitters prepared by the breath figure approach. Microscopy analysis of the topography and composition of the material evidence that the CsPbBr3 nanocrystals are homogeneously distributed within the polymer matrix but preferably confined inside the pores due to the fabrication process. The optical properties of the CsPbBr3 nanocrystals remain unaltered after the film formation, proving that they are stable inside the polystyrene matrix, which protects them from degradation by environmental factors. Moreover, these surfaces present highly hydrophobic behavior due to their high porosity and defined micropatterning, which is in agreement with the Cassie-Baxter model. This is evidenced by performing a proof-of-concept coating on top of 3D-printed LED lenses, conferring the material with self-cleaning properties, while the CsPbBr3 nanocrystals embedded inside the polymeric matrix maintain their luminescent behavior.},
organization = {This work was funded by the Ministry of Science, Innovation
and Universities (project TEC2017-86102-C2-2-R) and Junta
de Andalucía (Research group INNANOMAT, ref. TEP-946)
and co-financed by the 2014-2020 ERDF Operational
Programme and by the Department of Economy, Knowledge,
Business and University of the Regional Government of
Andalusia (ref: FEDER-UCA18-106586). Co-funding from
UE is also acknowledged. A.S.d.L. acknowledges the Ministry
of Science, Innovation and Universities for his Juan de la Cierva
Incorporación postdoctoral fellowship (IJC2019-041128-I).
R.A. also acknowledges the support of the Spanish MINECO
through projects: Retos-Colaboración 2016 Project Safetag (no.
RTC-2016-5197-2) and Retos de la Sociedad Project Nirvana
(no. PID2020-119628RB-C31) by MCIN/AEI/10.13039/
501100011033 and the “Agencia Valenciana de la Innovació”
for the Valorització 2018 Project Hidronio (no. INNVAL10/
18/032) and Valorització 2021 Project CATIOX (no.
INNVA1/2021/56). R.A. also thanks the Spanish MINECO
for their Ramón y Cajal Fellowship (no. RYC-2015-18349).
SEM and TEM measurements were carried out at the DME-SCICyT-
ELECMI-UCA.},
publisher = {AMER CHEMICAL SOC},
keywords = {breath figures},
keywords = {metal halide perovskites},
keywords = {self-cleaning surfaces},
keywords = {photoluminescence},
keywords = {micropatterning},
title = {Self-Assembly of CsPbBr3Perovskites in Micropatterned Polymeric Surfaces: Toward Luminescent Materials with Self-Cleaning Properties},
doi = {10.1021/acsami.2c01567},
author = {Sanz de León, Alberto and Mata Fernández, María de la and Sanchez-Alarcon, Ivan R. and Abargues, Rafael and Molina Rubio, Sergio Ignacio},
}