Research output: Contribution to journal › Article › peer-review
Short-Range Order and Charge Transport in SiO x : Experiment and Numerical Simulation. / Gritsenko, V. A.; Novikov, Yu N.; Chin, A.
In: Technical Physics Letters, Vol. 44, No. 6, 01.06.2018, p. 541-544.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Short-Range Order and Charge Transport in SiO x
T2 - Experiment and Numerical Simulation
AU - Gritsenko, V. A.
AU - Novikov, Yu N.
AU - Chin, A.
PY - 2018/6/1
Y1 - 2018/6/1
N2 - The structure of nonstoichiometric silicon oxide (SiOx) has been studied by the methods of highresolution X-ray photoelectron spectroscopy and fundamental optical-absorption spectroscopy. The conductivity of SiOx (x = 1.4 and 1.6) films has been measured in a wide range of electric fields and temperatures. Experimental data are described in terms of the proposed SiOx structure model based on the concept of fluctuating chemical composition leading to nanoscale fluctuations in the electric potential. The maximum amplitude of potential fluctuations amounts to 2.6 eV for electrons and 3.8 eV for holes. In the framework of this model, the observed conductivity of SiOx is described by the Shklovskii–Efros theory of percolation in inhomogeneous media. The characteristic spatial scale of potential fluctuations in SiOx films is about 3 nm. The electron-percolation energy in SiO1.4 and SiO1.6 films is estimated to be 0.5 and 0.8 eV, respectively.
AB - The structure of nonstoichiometric silicon oxide (SiOx) has been studied by the methods of highresolution X-ray photoelectron spectroscopy and fundamental optical-absorption spectroscopy. The conductivity of SiOx (x = 1.4 and 1.6) films has been measured in a wide range of electric fields and temperatures. Experimental data are described in terms of the proposed SiOx structure model based on the concept of fluctuating chemical composition leading to nanoscale fluctuations in the electric potential. The maximum amplitude of potential fluctuations amounts to 2.6 eV for electrons and 3.8 eV for holes. In the framework of this model, the observed conductivity of SiOx is described by the Shklovskii–Efros theory of percolation in inhomogeneous media. The characteristic spatial scale of potential fluctuations in SiOx films is about 3 nm. The electron-percolation energy in SiO1.4 and SiO1.6 films is estimated to be 0.5 and 0.8 eV, respectively.
UR - http://www.scopus.com/inward/record.url?scp=85050148129&partnerID=8YFLogxK
U2 - 10.1134/S1063785018060196
DO - 10.1134/S1063785018060196
M3 - Article
AN - SCOPUS:85050148129
VL - 44
SP - 541
EP - 544
JO - Technical Physics Letters
JF - Technical Physics Letters
SN - 1063-7850
IS - 6
ER -
ID: 15951026