Measurement of Photoelectrophysical Characteristics of Conductive Layers of CsPbBr3 Colloidal Quantum Dots

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Дәйексөз келтіру

Толық мәтін

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Рұқсат жабық Тек жазылушылар үшін

Аннотация

Colloidal quantum dots of perovskites having the chemical composition CsPbBr3 have been synthesized. For these particles, the average size of an ensemble of particles and sample polydispersity have been determined by steady-state spectrofluorometry. Conducting layers were made from the obtained particles, and the electrophysical characteristics of these layers were measured. The hole nature of the conductivity was
established, and the layer conductivity (0.04 S/m), mobility (0.8 cm2/(V s)), and number concentration of free charge carriers (3.01 × 1021 m−3) were measured. In accordance with published data, the measured mobility value is higher by one to two orders of magnitude than published typical values. It is shown that high polydispersity has a weak effect on the electrophysical and transport characteristics in the resulting layers.

Авторлар туралы

D. Pevtsov

Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences; Moscow Institute of Physics and Technology (National Research University)

Email: pevtsov.dn@phystech.edu
Chernogolovka, Moscow oblast, 142432 Russia; Dolgoprudnyi, Moscow oblast, 141701 Russia

G. Lochin

Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences; Moscow Institute of Physics and Technology (National Research University)

Email: pevtsov.dn@phystech.edu
Chernogolovka, Moscow oblast, 142432 Russia; Dolgoprudnyi, Moscow oblast, 141701 Russia

A. Katsaba

Moscow Institute of Physics and Technology (National Research University); Lebedev Physical Institute, Russian Academy of Sciences

Email: pevtsov.dn@phystech.edu
Dolgoprudnyi, Moscow oblast, 141701 Russia; Moscow, 119991 Russia

S. Brichkin

Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences

Хат алмасуға жауапты Автор.
Email: pevtsov.dn@phystech.edu
Chernogolovka, Moscow oblast, 142432 Russia

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© Д.Н. Певцов, Г.А. Лочин, А.В. Кацаба, С.Б. Бричкин, 2023