Abstract
The pseudopotential and supercell methods are used to study the optical absorption of graphite-like hexagonal boron nitride involving deep levels of nitrogen vacancies and their clusters. The impurity-induced absorption is shown to be mainly related to electron transitions between the states that are antisymmetric with respect to the horizontal plane. Therefore, this absorption is highly anisotropic and is maximum for light waves polarized normally to the hexagonal axis. The optical absorption and photoconductivity spectra before and after neutron irradiation and thermal treatment are interpreted, and the activation energies for the thermoluminescence and conductivity of nitrogen-depleted boron nitride before and after fast-neutron irradiation and vacuum annealing are found.
| Original language | English |
|---|---|
| Pages (from-to) | 435-441 |
| Number of pages | 7 |
| Journal | Physics of the Solid State |
| Volume | 46 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1 Mar 2004 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
Optical Absorption of Hexagonal Boron Nitride Involving Nitrogen Vacancies and Their Complexes. / Grinyaev, Sergey Nikolaevich; Konusov, F. V.; Lopatin, V. V.; Shiyan, L. N.
In: Physics of the Solid State, Vol. 46, No. 3, 01.03.2004, p. 435-441.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Optical Absorption of Hexagonal Boron Nitride Involving Nitrogen Vacancies and Their Complexes
AU - Grinyaev, Sergey Nikolaevich
AU - Konusov, F. V.
AU - Lopatin, V. V.
AU - Shiyan, L. N.
PY - 2004/3/1
Y1 - 2004/3/1
N2 - The pseudopotential and supercell methods are used to study the optical absorption of graphite-like hexagonal boron nitride involving deep levels of nitrogen vacancies and their clusters. The impurity-induced absorption is shown to be mainly related to electron transitions between the states that are antisymmetric with respect to the horizontal plane. Therefore, this absorption is highly anisotropic and is maximum for light waves polarized normally to the hexagonal axis. The optical absorption and photoconductivity spectra before and after neutron irradiation and thermal treatment are interpreted, and the activation energies for the thermoluminescence and conductivity of nitrogen-depleted boron nitride before and after fast-neutron irradiation and vacuum annealing are found.
AB - The pseudopotential and supercell methods are used to study the optical absorption of graphite-like hexagonal boron nitride involving deep levels of nitrogen vacancies and their clusters. The impurity-induced absorption is shown to be mainly related to electron transitions between the states that are antisymmetric with respect to the horizontal plane. Therefore, this absorption is highly anisotropic and is maximum for light waves polarized normally to the hexagonal axis. The optical absorption and photoconductivity spectra before and after neutron irradiation and thermal treatment are interpreted, and the activation energies for the thermoluminescence and conductivity of nitrogen-depleted boron nitride before and after fast-neutron irradiation and vacuum annealing are found.
UR - http://www.scopus.com/inward/record.url?scp=1842854650&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=1842854650&partnerID=8YFLogxK
U2 - 10.1134/1.1687856
DO - 10.1134/1.1687856
M3 - Article
VL - 46
SP - 435
EP - 441
JO - Physics of the Solid State
JF - Physics of the Solid State
SN - 1063-7834
IS - 3
ER -