This article is cited in 15 papers

Amorphous, glassy, porous, organic, microcrystalline semiconductors, semiconductor composites

Detection of singlet oxygen in photoexcited porous silicon nanocrystals by photoluminescence measurements

M. B. Gongalsky, E. A. Konstantinova, L. A. Osminkina, V. Yu. Timoshenko

Lomonosov Moscow State University, Faculty of Physics

Abstract: Luminescence of gas-phase singlet oxygen optically sensitized by microporous silicon at room temperature is detected for the first time. At the same time, a photoinduced increase in the photoluminescence intensity of defects at the sample surface in oxygen atmosphere is observed. It is shown that mechanical grinding of porous silicon layers yields a decrease in the amount of photogenerated singlet oxygen.

Received: 06.05.2009
Accepted: 26.05.2009

 English version: Semiconductors, 2010, 44:1, 89–92

Bibliographic databases:

•