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http://hdl.handle.net/2074/293
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| Title: | Raman investigation of InSe doped with GaS |
| Authors: | Zolfaghari, Mahmoud
Jain, K P
Mavi, H S
Balkanski, M |
| Keywords: | Resonant raman scattering
Layer structure
Indium selenide |
| Issue Date: | 1996 |
| Citation: | Materials science and engineering,B38,161 170 |
| Abstract: | The Raman spectrum of lnSe doped with GaS exhibits appreciable changes at low doping densities indicating considerable changes on introducing GaS. The photoluminescence as well as resonance Raman study shows that the exciton energy is shifted towards higher energy as a result of doping. At resonance, both the one- and two-phonon polar modes are observed, although
considerably broadened. This indicates that the GaS-doped InSe develops significant topological disorder. Resonance Raman study shows that increasing the dopant broadens the resonance but the excitonic energy does not change as a result of the increase in the GaS in lnSe. The scattering also exhibits considerable temperature dependence, so that it is possible to temperature tune the resonance in the doped samples at low temperatures. |
| URI: | http://eprint.iitd.ac.in/dspace/handle/2074/293 |
| Appears in Collections: | Physics
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