Heat Treatment Effect on Structural and Optical Properties of Germanium Nanowires Obtained by Electrochemical Deposition

Pavlikov, A.; Sharafutdinova, A.; Gavrilin, I.; Zaytsev, V.; Dronov, A.; Gavrilov, S.

Авторы: Pavlikov Alexander, Sharafutdinova Alfia, Gavrilin Ilya, Zaytsev Vladimir, Dronov Alexey, Gavrilov Sergey
Журнал: Physica Status Solidi (A) Applications and Materials Science
Том: 218
Год издания: 2021
Издательство: Wiley - V C H Verlag GmbbH & Co.
Местоположение издательства: Germany
Первая страница: 2100245(1)
Последняя страница: 2100245(7)
Номер статьи: 2100245
DOI: 10.1002/pssa.202100245
Аннотация: This work is dedicated to the heat treatment effect on structural and optical properties of germanium nanowires obtained by electrochemical deposition from an aqueous solution. Raman spectroscopy shows an increase in the initial crystalline fraction in the sample annealed at 600 °C compared with that annealed at 300 °C. As-prepared sample is amorphous and crystallized under the action of probe laser radiation. Measurements carried out at wavelengths of 488 and 633 nm give close estimates of the crystalline phase, but different threshold values. The crystallization threshold upon excitation with a laser with a wavelength of 488 nm is higher. The intensity of specular reflection at the boundary of the IR and visible ranges drops, which indicates an increase in the contribution of diffuse reflection and absorption. A detailed study of diffuse reflection in the visible range shows higher absorption at 633 nm than at 488 nm, which is consistent with the obtained estimates of the crystallization threshold values.
Добавил в систему: Зайцев Владимир Борисович

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Heat Treatment Effect on Structural and Optical Properties of Germanium Nanowires Obtained by Electrochemical Depositionстатья Исследовательская статья

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