Yakushev, Michael V. and Luckert, Franziska and Faugeras, Clement and Karotki, Anatoli V. and Mudryi, Alexander V. and Martin, Robert W. (2011) Excited states of the A and B free excitons in CuInSe2. Japanese Journal of Applied Physics, 50 (5). -. ISSN 0021-4922
Full text not available in this repository. (Request a copy from the Strathclyde author)Abstract
CuInSe2 single crystals, grown by the vertical Bridgman technique were studied using polarisation resolved photoluminescence (PL) at cryogenic temperatures. The emission lines related to the first (n = 2) excited states for the A and B free excitons were observed in the PL spectra at 1.0481 and 1.0516 eV, respectively. The spectral positions of these lines were used to estimate accurate values for the A and B exciton binding energies (8.5 and 8.4 meV, respectively), Bohr radii (7.5 nm), band gaps (E-g(A) = 1.050 eV and E-g(B) = 1.054 eV), and the static dielectric constant (11.3) assuming the hydrogenic model.
| Item type: | Article |
|---|---|
| ID code: | 34032 |
| Keywords: | optical properties, single crystals, Physics |
| Subjects: | Science > Physics |
| Department: | Faculty of Science > Physics |
| Related URLs: | |
| Depositing user: | Pure Administrator |
| Date Deposited: | 18 Nov 2011 05:21 |
| Last modified: | 14 Feb 2013 12:06 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/34032 |
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