V+ (d4) and V2+ (d3) ion states in CdTe evidenced by photoluminescence

Autor:	K. W. Benz, P. Peka, Heiko Selber, R. Schwarz, H.-J. Schulz
Rok vydání:	1996
Předmět:	Materials science Photoluminescence Infrared Band gap Materials Chemistry Analytical chemistry General Chemistry Condensed Matter Physics Luminescence Cadmium telluride photovoltaics Ion
Zdroj:	Solid State Communications. 98:677-682
ISSN:	0038-1098
DOI:	10.1016/0038-1098(96)00112-3
Popis:	High-resistivity CdTe:V crystals are investigated by photo-luminescence in the infrared spectral region. In addition to the known 3 T 2 (F) → 3 A 2 (F) emission of V3+ near 4100 cm−1, two further luminescence bands are detected at lower energies. A band peaking at 3450 cm−1 is assigned to the 4 T 2 (F) → 4 T 1 (F) transition of V2+ and a strong luminescence near 2780 cm−1 is identified as the 5 E(D) → 5 T 2 (D) emission of V+. These results are compared to other vanadium-doped II–VI compounds. A clear general trend of the transition energy with the band gap energy is deduced.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e8413cab9d2701bcf64827c214e0adb4 https://doi.org/10.1016/0038-1098(96)00112-3 Zobrazit plný text záznamu Full Text from ScienceDirect