Abstract
Combining the studies of electrical, photoluminescence and stoichiometric analyses, the defect structure of undoped CuInS2 is revealed. For a multilevel system such as CuInS2, the ionization energies were determined to be 0.038, 0.068 and 0.145eV for the sulfur vacancy, indium interstitial and indium occupying the copper vacancy, respectively. A defect model based on deviation from the ideal chemical formula was developed to illustrate the self-compensation effects, in which "quantitative" investigations of the structural defects in undoped CuInS2 crystals are provided.
| Original language | English |
|---|---|
| Pages (from-to) | 1297-1305 |
| Number of pages | 9 |
| Journal | Journal of Physics and Chemistry of Solids |
| Volume | 50 |
| Issue number | 12 |
| DOIs | |
| State | Published - 1989 |
| Externally published | Yes |
Keywords
- CuInS
- chemical formula deviations
- defect model
- intrinsic defects