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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.43 [2005] >
IJPAP Vol.43(08) [August 2005] >
| Title: | Variation of band gap in CdPbS with composition prepared by a precipitation technique |
| Authors: | Kumar, Sanjeev
Bhattacharya, B |
| Keywords: | CdPbS
Precipitation technique
Band gap |
| Issue Date: | Aug-2005 |
| Publisher: | CSIR |
| IPC Code: | F26B3/28 |
| Abstract: | Cadmium sulphide
(CdS) is highly sensitive of light and has high absorption coefficient. Only
disadvantage with CdS is its wide band gap (2.4eV). The band gap of CdS has
been tailored by mixing it with lead sulphide (PbS)(low band gap material). The
material of configuration (Cd1-xPbxS) for this study has
been prepared by precipitate technique in the methanol with x = 0.2, 0.4, 0.6, 0.8. The films
of this material were deposited by the vacuum deposition method. Spectroscopic
technique has been used for the band gap determination. The variation of band
gap with their composition has been reported. It has been found that the band
gap decreases with increase in pb
concentration. The nature of the band gap has also been determined in this
paper. |
| Page(s): | 609-611 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.43(08) [August 2005]
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