کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1810923 | 1025574 | 2012 | 4 صفحه PDF | دانلود رایگان |
Photoconduction spectra as a function of temperature, electric field and additional illumination are studied in crystals of NbS3 (phase I). We observe the low-energy cut-off of photoconduction corresponding to the gap edge and electronic states within the gap. The states reveal themselves as peaks in photoconduction spectra; the amplitude of the peaks depends on the value of electric field applied, temperature and additional illumination. Two peaks at energies 0.6 eV and 0.9 eV and a tail of photoconduction at energies between 1 eV and 0.7 eV are observed. In addition, the effect of plastic deformation created by bending of a sample on the photoconduction spectra is studied. We found that plastic deformation of the sample results in suppression of the peak at ℏω=0.6eV.
Journal: Physica B: Condensed Matter - Volume 407, Issue 11, 1 June 2012, Pages 1874–1877