Suppression of the anomalous blue shift in the band gap temperature dependence of AgCuGaS{sub 2} alloys
Journal Article
·
· Physical Review B
It has been known for some time that, at temperatures below 100 K, the band gap of AgGaS{sub 2} exhibits an anomalous blue shift with increase in temperature. We have found that this anomalous blue shift can be suppressed completely by as little as 1% of Cu in AgCuGaS{sub 2} alloys. In conjunction with the disappearance of the blue shift, soft-phonon sidebands to the one-phonon Raman peaks are greatly broadened and no longer resolvable as distinct peaks. Our results are consistent with the suggestion that a soft-phonon mode may be responsible for this anomalous blue shift in AgGaS{sub 2}.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40203633
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 23 Vol. 63; ISSN 0163-1829
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
Similar Records
Anomalous Raman and photoluminescence blue shift in mono- and a few layered pulsed laser deposited MoS2 thin films
Suppression of the anomalous blue shift in the band gap temperature dependence of AgCuGaS2 alloys
Anomalous temperature-dependency of phonon line widths probed by Raman scattering from {beta}-FeSi{sub 2} thin films
Journal Article
·
Fri Jun 15 00:00:00 EDT 2018
· Materials Research Bulletin
·
OSTI ID:22804030
Suppression of the anomalous blue shift in the band gap temperature dependence of AgCuGaS2 alloys
Journal Article
·
Sat Dec 30 23:00:00 EST 2000
· Physical Review B
·
OSTI ID:788069
Anomalous temperature-dependency of phonon line widths probed by Raman scattering from {beta}-FeSi{sub 2} thin films
Journal Article
·
Fri Apr 15 00:00:00 EDT 2011
· Journal of Applied Physics
·
OSTI ID:21560172