|
This article is cited in 3 scientific papers (total in 3 papers)
Solid-State Electronics
Model of photoluminescence from ion-synthesized silicon nanocrystal arrays embedded in a silicon dioxide matrix
S. N. Nagornyhab, V. I. Pavlenkovac, A. N. Mikhaylova, A. I. Belova, L. V. Krasil’nikovaad, D. I. Kryzhkovd, D. I. Tetelbauma a Scientific-Research Physicotechnical Institute at the Nizhnii Novgorod State University, Nizhnii Novgorod
b Minin State Pedagogical University of Nizhny Novgorod
c Arzamas State Pedagogical Institute
d Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhnii Novgorod
Abstract:
A four-level model of photoluminescence from $\mathrm{Si}$ nanocrystal arrays embedded in a $\mathrm{SiO}_2$ matrix is suggested. The model allows for thermally activated transitions between singlet and triplet levels in the exchange-split energy state of an exciton in an excited silicon nanocrystal. An expression is derived for the temperature dependence of the intensity of photoluminescence monochromatic components. A correlation is found between the amount of splitting and the emitted photon energy by comparing model data with our experimental data for ion-synthesized $\mathrm{Si}$ nanocrystals in a $\mathrm{SiO}_2$ matrix. The model explains the finiteness of the photoluminescence intensity at temperatures close to $0$ K and the nonmonotonicity of the temperature run of the intensity.
Received: 31.01.2012
Citation:
S. N. Nagornyh, V. I. Pavlenkov, A. N. Mikhaylov, A. I. Belov, L. V. Krasil’nikova, D. I. Kryzhkov, D. I. Tetelbaum, “Model of photoluminescence from ion-synthesized silicon nanocrystal arrays embedded in a silicon dioxide matrix”, Zhurnal Tekhnicheskoi Fiziki, 82:12 (2012), 63–66; Tech. Phys., 57:12 (2012), 1672–1675
Linking options:
https://www.mathnet.ru/eng/jtf8994 https://www.mathnet.ru/eng/jtf/v82/i12/p63
|
|