Pregled bibliografske jedinice broj: 172427
Specific features of the optical absorption edge anisotropy in In_4(P_2S_6)_3 layered crystals
Specific features of the optical absorption edge anisotropy in In_4(P_2S_6)_3 layered crystals // Materials Research Bulletin, 37 (2002), 2499-2507 (međunarodna recenzija, članak, znanstveni)
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Naslov
Specific features of the optical absorption edge anisotropy in In_4(P_2S_6)_3 layered crystals
Autori
Kranjčec, Mladen ; Studenyak, Ivan Petroviych ; Kovacs, Gyula Shandor ; Mitrovcij, Viktor Vasylyovych ; Gurzan, Mykhaylo Ivanovych ; Voroshilov, Yuriy Vitaliyovych
Izvornik
Materials Research Bulletin (0025-5408) 37
(2002);
2499-2507
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
semiconductors; crystal growth; defects; optical properties
Sažetak
The optical absorption edge of In_4(P_2S_6)_3 layered crystals is studied in the temperature range 77-355 K. In the spectral range of direct optical transitions the absorption edge is of Urbach shape. Electron-phonon interaction result in the smearing of energy bands and, consequently, in appearing of Urbach absorption tails. The temperature variation of the optical pseudogap E_g and the absorption edge energy width w are well described in the Einstein model. Strong anisotropy of the absorption edge spectral position and shape, as well as of electron-phonon interaction, is revealed.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
