Crystallographic Parameters and Band Gap of CdSxSe1-X Mixed Crystals
| Autor: | Al-Bassam, A.A., Elani, U.A. |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| DOI: | 10.4229/28theupvsec2013-1av.1.2 |
| Popis: | 28th European Photovoltaic Solar Energy Conference and Exhibition; 180-184 Crystals of CdSxSe1-x alloys have been grown from the vapour phase. X-ray diffractometry has shown that CdS-CdSe mixed crystals had the wurtzite structure for all compositions between CdS and CdSe. The lattice parameters (both a and c) were found to show a linear dependence with composition. The dependence of the lattice parameters of a and c on composition can he expressed as: a(x) = 4.165 + 0.16 x c(x) = 6.713 + 0.27x. The variation of band gap with composition was determined for these samples from optical absorption measurements, which showed that the band gap varied smoothly and monotonically, but not linearly over the composition range Typical results were found between 2-42-1.74 eV at room temperature. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|