Relaxation of excited surface states of thin Ge-implanted silica films probed by OSEE spectroscopy
Relaxation of excited surface states of thin Ge-implanted silica films probed by OSEE spectroscopy
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OSEE 光谱探测掺 Ge 二氧化硅薄膜激发表面态的弛豫
DOI:
10.1016/j.jlumin.2015.08.073
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发表时间:
2016
影响因子:
3.6
通讯作者:
H.-J. Fitting
中科院分区:
文献类型:
--
作者:
A.F. Zatsepin ;E.A. Buntov;A.P. Mikhailovich;A.I. Slesarev;B. Schmidt;A. von Czarnowski;H.-J. Fitting
As an example of thin silica films, 30 nm SiO2–Si heterostructures implanted with Ge+ions (1016cm−2fluence) and rapid thermally annealed (RTA) at 950 °C are studied by means of optically stimulated electron emission (OSEE) in the spectral region of optical transparency for bulk silica. Quartz glass samples were used as references. Experimental data revealed a strong dependence between electron emission spectral features and RTA annealing time. The spectral contributions of both surface band tail states and interband transitions were clearly distinguished. The application of emission Urbach rule as well as Kane and Pässler equations allowed to analyze the OSEE spectra at different optical excitation energy ranges and to retrieve the important microstructural and energy parameters. The observed correlations between parameter values of Urbach- and Kane-related models suggest the implantation-induced conversion of both the vibrational subsystem and energy band of surface and interface electronic states.
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影响因子:
--
作者:
A. Goodman
通讯作者:
A. Goodman
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
R. Hellborg;H. Whitlow;Yanwen Zhang
通讯作者:
Yanwen Zhang
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
A. Zatsepin;D. Biryukov;V. Kortov
通讯作者:
V. Kortov
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
A. Trukhin;K. Golant
通讯作者:
K. Golant
影响因子:
1.7
作者:
Takagi, S.;Tezuka, T.;Sugahara, S.
通讯作者:
Sugahara, S.