OPTICAL PROPERTIES STABILITY OF CSPBX3 NANOCRYSTALS EMBEDDED IN POROUS GLASS MATRIX

1,2 USHAKOVA Elena
Co-authors:
1 MATUHINA Anastasia 1 SOKOLOVA Anastasiia 1 CHEREVKOV Sergei 1 DUBAVIK Aliaksei 3 MEDVEDEV Oleg 1 LITVIN Aleksandr 4 KURDYUKOV Dmitry 4 GOLUBEV Valery 1 BARANOV Alexander
Institutions:
1 ITMO University, Center of Information Optical Technologies, Saint Petersburg, Russia, elena.ushakova@itmo.ru
2 City University of Hong Kong, Department of Materials Science and Engineering, and Center for Functional Photonics (CFP), Hong Kong S.A.R.
3 Saint-Petersburg State University, Interdisciplinary Resource Centre for Nanotechnology, Saint Petersburg, Russia
4 Ioffe Institute, Laboratory Physics for Cluster Structures, Saint Petersburg, Russia
Conference:
11th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 16th - 18th 2019
Proceedings:
Proceedings 11th International Conference on Nanomaterials - Research & Application
Pages:
621-625
ISBN:
978-80-87294-95-6
ISSN:
2694-930X
Published:
1st April 2020
Proceedings of the conference have been sent to Web of Science and Scopus for evaluation and potential indexing.
Metrics:
27 views / 13 downloads
Abstract

All-inorganic perovskite nanocrystals with chemical formula CsPbX3 (X = Cl, Br, and I) attract much scientific attention since they possess unique optical properties, such as high extinction coefficients and values of emission quantum yield, together with ease of their synthesis and tunability in the chemical composition. However, these nanomaterials are still far from their large-scale applications since they lack stability. Here, it was shown that the use of a nanoporous glass matrix allowed obtaining the samples with blue, green, and red perovskite nanocrystals possessing reproducible optical characteristics which are almost similar to that of their colloidal solution. Such a matrix also prevented the fast degradation of nanocrystals both at the storage in ambient and under UV-light exposure and/or in the conditions of increased humidity.

Keywords: Perovskite, nanocrystals, porous matrix, emission, stability, moisture
Scroll to Top