Effect of a Substrate on the Photoluminescent Properties of Organometallic Perovskite Nanocrystals
https://doi.org/10.56304/S207956292203037X
Abstract
The photoluminescent properties of nanocrystalline layers of organometallic perovskites deposited on various semiconductor and dielectric substrates were studied. It was established that, depending on the substrate, for CH3NH3PbBr3 nanocrystals with sizes of tens and hundreds of nanometers, it is possible to observe both one and two maxima in the exciton photoluminescence spectrum at room temperature. The photoluminescence of nanocrystals deposited on an array of silicon nanowires has a longer wavelength of the spectrum maximum compared to nanocrystals on a flat surface of a single-crystal silicon substrate. The results obtained were explained by the influence of electric fields of bound charges at the interfaces and by the processes of absorption of photoluminescence.
About the Authors
N. S. Pokryshkin
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); Lomonosov Moscow State University, Faculty of Physics
Russian Federation
Russian Federation
Moscow, 115409; Moscow, 119991
I. O. Sobina
Lomonosov Moscow State University, Faculty of Physics
Russian Federation
Russian Federation
Moscow, 119991
N. N. Aytugan
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
Moscow, 115409
K. S. Sekerbayev
Institute of Experimental and Theoretical Physics, Al-Farabi Kazakh National University
Kazakhstan
Kazakhstan
Almaty, 050040
G. K. Mussabek
Institute of Experimental and Theoretical Physics, Al-Farabi Kazakh National University
Kazakhstan
Kazakhstan
Almaty, 050040
R. B. Assilbayeva
Satbayev Kazakh National Research Technical University; Yessenov Caspian University of Technology and Engineering
Kazakhstan
Kazakhstan
Almaty, 050000; Aktau, 130000
Ye. T. Taurbayev
Institute of Experimental and Theoretical Physics, Al-Farabi Kazakh National University
Kazakhstan
Kazakhstan
Almaty, 050040
A. V. Syuy
Moscow Institute of Physics and Technology
Russian Federation
Russian Federation
Dolgoprudny, Moscow oblast, 141700
V. G. Yakunin
Lomonosov Moscow State University, Faculty of Physics
Russian Federation
Russian Federation
Moscow, 119991
V. Yu. Timoshenko
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); Lomonosov Moscow State University, Faculty of Physics
Russian Federation
Russian Federation
Moscow, 115409; Moscow, 119991
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Review
For citations:
Pokryshkin N.S., Sobina I.O., Aytugan N.N., Sekerbayev K.S., Mussabek G.K., Assilbayeva R.B., Taurbayev Ye.T., Syuy A.V., Yakunin V.G., Timoshenko V.Yu. Effect of a Substrate on the Photoluminescent Properties of Organometallic Perovskite Nanocrystals. Nuclear Physics and Engineering. 2023;14(1):22-26. (In Russ.) https://doi.org/10.56304/S207956292203037X
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