TITLE

Quantum-sized effects in oxidized silicon structures with surface II-VI nanocrystals

AUTHOR(S)
Karachevtseva, L.; Kuchmii, S.; Kolyadina, O.; Lytvynenko, O.; Matveeva, L.; Sapelnikova, O.; Smirnov, O.; Stroyuk, O.
PUB. DATE
April 2014
SOURCE
Semiconductor Physics, Quantum Electronics & Optoelectronics;2014, Vol. 17 Issue 2, p168
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The Si-SiO2 interface in oxidized macroporous silicon structures with surface CdS and ZnO nanocrystals was investigated using the methods of electroreflectance and photoconductivity. The Franz-Keldysh effect, built-in electric field and surface quantization of charge carriers in the Si-SiO2 region were revealed. The splitting of photoconductivity peaks was detected in the area of indirect band-to-band transition due to quantization of charge carriers in the surface silicon region, too. The latter data correlate with the results of the electroreflectance spectra measurements in the area of direct interband transition of oxidized macroporous silicon structures with surface CdS and ZnO nanocrystals.
ACCESSION #
98613572

 

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