Temperature dependent Raman spectroscopy of chemically derived few layer MoS2 and WS2 nanosheets
| Title | Temperature dependent Raman spectroscopy of chemically derived few layer MoS2 and WS2 nanosheets |
| Publication Type | Journal Article |
| Year of Publication | 2014 |
| Authors | Thripuranthaka, M, Kashid, RV, Rout, CSekhar, Late, DJ |
| Journal | Applied Physics Letters |
| Volume | 104 |
| Issue | 8 |
| Pagination | 081911 |
| Date Published | FEB |
| ISSN | 0003-6951 |
| Abstract | We have systematically investigated the temperature dependent Raman spectroscopy behavior of a few layered MoS2 and WS2 nanosheets synthesized using simple hydrothermal method. Our result reveals A(1g) and E-2g(1) modes soften as temperature increases from 77 K to 623 K. This behavior can be explained in terms of a double resonance process which is active in single-and few layer thick nanosheets. The frequency shifts and peak broadening can provide unambiguous, nondestructive, and accurate information of a few layered MoS2 and WS2. This mechanism can also be applicable in characterizing the structural, optical, electronic, and vibrational properties of other emerging layered materials. (c) 2014 AIP Publishing LLC. |
| DOI | 10.1063/1.4866782 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 3.48 |
Divison category:
Physical and Materials Chemistry