Search for content and authors
 

Mechanism of band-edge luminescence in cuprous iodide single crystals

Pan Gao 

Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China

Abstract

The photoluminescence spectra of CuI crystals using synchrotron radiation as an excitation light source were obtained at 60K. The emission peaks at 405, 415, 420 and 443nm were observed respectively. The possible origins of these peaks were discussed by the temperature dependence of CuI luminescence. Meanwhile, the photoluminescence spectra of CuI powder with different excitation intensity were measured and the ultrafast component luminescence in CuI crystals was warranted to be attributed to the donor acceptor pair recombination. Furthermore, the excitation process was understood by the photoluminescence excitation spectra of CuI crystals and powder.

 

Legal notice
  • Legal notice:
 

Related papers

Presentation: Poster at 17th International Conference on Crystal Growth and Epitaxy - ICCGE-17, General Session 5, by Pan Gao
See On-line Journal of 17th International Conference on Crystal Growth and Epitaxy - ICCGE-17

Submitted: 2013-03-28 12:56
Revised:   2013-03-28 13:04