Effective decoupling of seebeck coefficient and the electrical conductivity through isovalent substitution of erbium in bismuth selenide thermoelectric material

JD Musah, AM Ilyas, A Novitskii, I Serhiienko… - Journal of Alloys and …, 2021 - Elsevier
Recognizing high thermoelectric performance in semiconducting materials is a challenging
task. This is because the Seebeck coefficient and electrical conductivity which constitute the …

PbGa2GeS6 crystal as a novel nonlinear optical material: Band structure aspects

AO Fedorchuk, OV Parasyuk, O Cherniushok… - Journal of Alloys and …, 2018 - Elsevier
Abstract New quaternary sulfide PbGa 2 GeS 6 crystal was synthesized from co-melting high-
purity elements The studies of second harmonic generation and the third harmonic …

Electronic structure and optical properties of noncentrosymmetric LiGaSe2: Experimental measurements and DFT band structure calculations

AA Lavrentyev, BV Gabrelian, VT Vu, LN Ananchenko… - Optical Materials, 2017 - Elsevier
We report on measurements of X-ray photoelectron (XP) spectra for pristine and Ar+ ion-
irradiated surfaces of LiGaSe 2 single crystal grown by Bridgman-Stockbarger method …

NIR and visible luminescence features of erbium doped Ga2S3–La2S3 glasses

IV Kityk, VV Halyan, VO Yukhymchuk… - Journal of Non …, 2018 - Elsevier
An influence of the rare earth ions (La, Er) concentration on the luminescent properties of Ga
2 S 3-La 2 S 3-Er 2 S 3 glasses in the visible and near-infrared spectral region has been …

Electronic structure and laser induced piezoelectricity of a new quaternary compound TlInGe3S8

OY Khyzhun, AO Fedorchuk, IV Kityk, M Piasecki… - Materials Chemistry and …, 2018 - Elsevier
New quaternary thallium indium germanium sulfide TlInGe 3 S 8 was synthesized by co-
melting high-purity elements at 1270 K. Its crystal structure was determined by X-ray single …

Electronic structure and optical properties of (Ga70La30) 2S300 and (Ga69. 75La29. 75Er0. 5) 2S300 single crystals, novel light-converting materials

VV Halyan, OY Khyzhun, IA Ivashchenko… - Physica B: Condensed …, 2018 - Elsevier
Electronic structure and optical properties were studied for novel (Ga 70 La 30) 2 S 300 and
(Ga 69.75 La 29.75 Er 0.5) 2 S 300 single crystals synthesized by solution-melt technique. In …

Mechanism of photoluminescence in erbium-doped chalcogenide

VV Halyan, IA Ivashchenko - Luminescence-OLED Technology …, 2020 - books.google.com
The monograph describes the technique of the synthesis of glasses and the method of the
growth of erbium-doped single crystals. The photoluminescence spectra of Ag0. 05 Ga0. 05 …

Synthesis and structure of novel Ag 2 Ga 2 SiSe 6 crystals: promising materials for dynamic holographic image recording

OV Parasyuk, VV Pavlyuk, OY Khyzhun, VR Kozer… - RSC …, 2016 - pubs.rsc.org
Phase diagrams of the AgGaSe2–SiSe2 system were explored by differential thermal
analysis (DTA) and X-ray diffraction (XRD) analysis methods for the first time. It was …

Layered Quaternary Compounds in the Cu2S–In2S3–Ga2S3 system

MT Caldes, C Guillot-Deudon, A Thomere… - Inorganic …, 2020 - ACS Publications
Several new materials with four structure-types (eg, Cu0. 32In1. 74Ga0. 84S4 (CIGS4), Cu0.
65In1. 75Ga1. 4S5 (CIGS5), Cu1. 44In2. 77Ga0. 76S6 (CIGS6), and Cu1. 1In2. 49Ga1. 8S7 …

Optical and electronic properties of lithium thiogallate (LiGaS 2): experiment and theory

TV Vu, AA Lavrentyev, BV Gabrelian, DD Vo… - RSC …, 2020 - pubs.rsc.org
We report the relation between the optical properties and electronic structure of lithium
thiogallate (LiGaS2) by performing XPS and XES measurements and theoretical …