Optical properties of materials based on oxidized porous silicon and their applications for UV protection

Pavlikov, A.V.; Lartsev, A.V.; Gayduchenko, I.A.; Timoshenko, V.Y.

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.

Авторы: Pavlikov Alexander V., Lartsev Arseniy V., Gayduchenko Igor A., Timoshenko Victor Yu
Журнал: Microelectronic Engineering
Том: 90
Номер: 0
Год издания: 2012
Издательство: Elsevier BV
Местоположение издательства: Netherlands
Первая страница: 96
Последняя страница: 98
DOI: 10.1016/j.mee.2011.06.005
Аннотация: Powders of oxidized porous silicon were formed by electrochemical etching of crystalline silicon followed by thermal oxidation at 600-900 degrees C and further mechanical grinding. The optical transmission spectroscopy revealed a strong decrease of the optical absorption in the visible spectral range in the thermally oxidized samples in comparison with the non-oxidized ones. The UV absorption was rather high for both the thermally oxidized samples and non-oxidized ones. X-ray diffraction experiments displayed the structure of crystalline silicon core (diameter of 4-6 nm) covered by amorphous shell of silicon dioxide. The photoluminescence measurements indicated the radiative transitions at 1.8-2.0 eV, which can be related to excitons bound on Si=O bonds. The strongly oxidized powders were examined to reduce the level of the UV irradiation for different materials. A decrease of the UV-related destruction of acrylic paint with added oxidized silicon nanoparticles was observed. The obtained results are discussed in view of possible applications of oxidized silicon nanoparticles for UV protection.
Добавил в систему: Павликов Александр Владимирович

	ИСТИНА	Войти в систему Регистрация
	ИПМех РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ИПМех РАН

Optical properties of materials based on oxidized porous silicon and their applications for UV protectionстатья

Прикрепленные файлы