What is the true value of bulk band gap of lithium tetraborate single crystal?

Substantial variances in the bulk band gap of lithium tetraborate single crystal determined from numerous theoretical calculations as well as from experimental measurements give rise to the problem what is the true value of Eg for that crystal. In this review, we analyze in detail all available theo...

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Main Authors: Ya.V. Burak, V.T. Adamiv, I.M. Teslyuk, I.Ye. Moroz, S.Z. Malynych
Format: Article
Language:English
Published: Vasyl Stefanyk Precarpathian National University 2022-03-01
Series:Фізика і хімія твердого тіла
Subjects:
Online Access:https://journals.pnu.edu.ua/index.php/pcss/article/view/5369
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author Ya.V. Burak
V.T. Adamiv
I.M. Teslyuk
I.Ye. Moroz
S.Z. Malynych
author_facet Ya.V. Burak
V.T. Adamiv
I.M. Teslyuk
I.Ye. Moroz
S.Z. Malynych
author_sort Ya.V. Burak
collection DOAJ
description Substantial variances in the bulk band gap of lithium tetraborate single crystal determined from numerous theoretical calculations as well as from experimental measurements give rise to the problem what is the true value of Eg for that crystal. In this review, we analyze in detail all available theoretical and experimental data regarding the bulk band gap published by different authors and suggest that the experimental value of = (7.5 ± 0.3) eV determined from the optical absorption edge is the most appropriate value. This is in good agreement with Eg = 7.5 eV calculated via modified linear combination of atomic orbitals (LCAO) method.
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spelling doaj.art-c458ea4f909c4e01933b7f71aab639802022-12-22T02:59:15ZengVasyl Stefanyk Precarpathian National UniversityФізика і хімія твердого тіла1729-44282309-85892022-03-0123111311910.15330/pcss.23.1.113-1195369What is the true value of bulk band gap of lithium tetraborate single crystal?Ya.V. Burak0V.T. Adamiv1I.M. Teslyuk2I.Ye. Moroz3S.Z. Malynych4O.G. Vlokh Institute of Physical OpticsO.G. Vlokh Institute of Physical OpticsO.G. Vlokh Institute of Physical OpticsLviv Polytechnic National UniversityHetman Petro Sahaidachnyi National Army AcademySubstantial variances in the bulk band gap of lithium tetraborate single crystal determined from numerous theoretical calculations as well as from experimental measurements give rise to the problem what is the true value of Eg for that crystal. In this review, we analyze in detail all available theoretical and experimental data regarding the bulk band gap published by different authors and suggest that the experimental value of = (7.5 ± 0.3) eV determined from the optical absorption edge is the most appropriate value. This is in good agreement with Eg = 7.5 eV calculated via modified linear combination of atomic orbitals (LCAO) method.https://journals.pnu.edu.ua/index.php/pcss/article/view/5369lithium tetraborateband gapabsorption edgecrystal structure
spellingShingle Ya.V. Burak
V.T. Adamiv
I.M. Teslyuk
I.Ye. Moroz
S.Z. Malynych
What is the true value of bulk band gap of lithium tetraborate single crystal?
Фізика і хімія твердого тіла
lithium tetraborate
band gap
absorption edge
crystal structure
title What is the true value of bulk band gap of lithium tetraborate single crystal?
title_full What is the true value of bulk band gap of lithium tetraborate single crystal?
title_fullStr What is the true value of bulk band gap of lithium tetraborate single crystal?
title_full_unstemmed What is the true value of bulk band gap of lithium tetraborate single crystal?
title_short What is the true value of bulk band gap of lithium tetraborate single crystal?
title_sort what is the true value of bulk band gap of lithium tetraborate single crystal
topic lithium tetraborate
band gap
absorption edge
crystal structure
url https://journals.pnu.edu.ua/index.php/pcss/article/view/5369
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