| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5458365 | Journal of Alloys and Compounds | 2017 | 27 Pages |
Abstract
The optical properties of monoclinic Ag2Te crystals are studied in a wide range (3.7Â meV-6.2Â eV) of photon energies. The measured reflectivity spectra from THz to UV allow unambiguous a photon energy-dependent complex dielectric function, complex refractive index and absorption coefficient to be obtained. The spectral structure in these optical parameters further indicates the coexistence of an indirect transition with a bandgap energy of about 10Â meV and a direct transition with a bandgap energy of about 1.84Â eV.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Tien-Tien Yeh, Wen Hao Lin, Wen-Yen Tzeng, Phuoc Huu Le, Chih-Wei Luo, Teodor I. Milenov,