Photoluminescence of perovskite CsPb X  3  ( X  = Cl, Br, I) nanocrystals and solid solutions on their basis

L. B. Matyushkin; V. A. Moshnikov

doi:10.1134/S106378261710013X

Photoluminescence of perovskite CsPbX₃ (X = Cl, Br, I) nanocrystals and solid solutions on their basis

Authors: Matyushkin L.B.¹, Moshnikov V.A.¹
Affiliations:
1. St. Petersburg State Electrotechnical University “LETI”
Issue: Vol 51, No 10 (2017)
Pages: 1337-1342
Section: Semiconductor Structures, Low-Dimensional Systems, and Quantum Phenomena
URL: https://journals.rcsi.science/1063-7826/article/view/201375
DOI: https://doi.org/10.1134/S106378261710013X
ID: 201375

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Abstract
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Abstract

Synthesis and also the structural and photoluminescence properties of nanocrystals with natural faceting of the “cesium–lead–halogen” system with crystalline structure of the perovskite type are examined. The possibility of continuously changing the position of the maximum in the photoluminescence spectrum in the wavelength range of 400–700 nm is demonstrated. Features of the formation of the continuous series of solid solutions CsPb(Cl_1–xBr_x)₃ and CsPb(Br_1–xI_x)₃ due to the aftergrowth treatment of CsPbBr₃ nanocrystals as a result of anion exchange at room temperature are studied. The corresponding range of frequency change for the maximum of the photoluminescence spectrum amounts to 410–690 nm.

About the authors

L. B. Matyushkin

St. Petersburg State Electrotechnical University “LETI”

Author for correspondence.
Email: leva.matyushkin@gmail.com
Russian Federation, St. Petersburg, 197376

V. A. Moshnikov