Research output: Contribution to journal › Article › peer-review
Atomic configuration and charge state of hydrogen at dislocations in silicon. / Vysotskii, N. V.; Loshachenko, A. S.; Vyvenko, O. F.
In: Semiconductors, Vol. 51, No. 3, 01.03.2017, p. 293-298.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Atomic configuration and charge state of hydrogen at dislocations in silicon
AU - Vysotskii, N. V.
AU - Loshachenko, A. S.
AU - Vyvenko, O. F.
PY - 2017/3/1
Y1 - 2017/3/1
N2 - The effect of the introduction of hydrogen upon the vibration spectra and electrical characteristics of samples with dislocation networks at the interface of bonded silicon wafers was studied. In order to improve the sensitivity of measurements and to distinguish the signal from dislocation networks in Raman spectra, thin foils conventionally prepared for transmission electron microscopy were used as the sample under investigation. In the samples with dislocation networks, a Raman peak at 2000 cm–1 was observed. This peak survived after annealing at a temperature of T = 500°C and was not observed in reference samples. Comparison of the experimental data with currently available theoretical calculations allowed one to attribute the observed peak to neutral hydrogen atoms H0 at the center of Si–Si bonds. The peak is metastable in the ideal lattice, but becomes stable in the vicinity of dislocations.
AB - The effect of the introduction of hydrogen upon the vibration spectra and electrical characteristics of samples with dislocation networks at the interface of bonded silicon wafers was studied. In order to improve the sensitivity of measurements and to distinguish the signal from dislocation networks in Raman spectra, thin foils conventionally prepared for transmission electron microscopy were used as the sample under investigation. In the samples with dislocation networks, a Raman peak at 2000 cm–1 was observed. This peak survived after annealing at a temperature of T = 500°C and was not observed in reference samples. Comparison of the experimental data with currently available theoretical calculations allowed one to attribute the observed peak to neutral hydrogen atoms H0 at the center of Si–Si bonds. The peak is metastable in the ideal lattice, but becomes stable in the vicinity of dislocations.
UR - http://www.scopus.com/inward/record.url?scp=85015641572&partnerID=8YFLogxK
U2 - 10.1134/S1063782617030265
DO - 10.1134/S1063782617030265
M3 - Article
AN - SCOPUS:85015641572
VL - 51
SP - 293
EP - 298
JO - Semiconductors
JF - Semiconductors
SN - 1063-7826
IS - 3
ER -
ID: 41215487