Anharmonic phonon effects in Raman spectra of unsupported vertical graphene sheets
文献类型：期刊论文
| 作者 | Lin, JJ ; Guo, LW ; Huang, QS ; Jia, YP ; Li, K ; Lai, XF ; Chen, XL |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2011 |
| 卷号 | 83期号:12 |
| 关键词 | SINGLE-LAYER GRAPHENE TEMPERATURE-DEPENDENCE THERMAL-CONDUCTIVITY SUSPENDED GRAPHENE CARBON NANOTUBES OPTICAL PHONONS SPECTROSCOPY SCATTERING FILMS |
| ISSN号 | 1098-0121 |
| 通讯作者 | Chen, XL: Chinese Acad Sci, Res & Dev Ctr Funct Crystals, Beijing Natl Lab Condensed Matter Phys, Inst Phys, POB 603, Beijing 100190, Peoples R China. |
| 中文摘要 | Temperature-dependent Raman scattering is performed on unsupported vertical graphene sheets, which are approximate to free graphene without supporting the substrate. Here the observed G peak line shift with temperature is completely consistent with the theoretical prediction based on the first-principles calculation on free graphene, and our result is helpful to understand intrinsic anharmonic phonon characteristics of free graphene and the divergence on the G peak line shift with temperature. However, the observed linewidth variation is different from the prediction. To reveal the origins, a simplified Klemens model is used, and the dominating anharmonic phonon scattering mechanism is explored. In addition, line shift and linewidth variations of D and 2D peaks of the graphene sheets with temperature are revealed, and the possible mechanisms dominating the results are discussed. |
| 收录类别 | SCI |
| 资助信息 | Chinese Academy of Sciences [KJCX2-YW-W22, YYYJ-0701]; Ministry of Science and Technology of China [2007BAE34B00, 2007CB936300, 2011CB932700]; National Natural Science Foundation of China [51072223, 50972162, 50702073] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/33761]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Lin, JJ,Guo, LW,Huang, QS,et al. Anharmonic phonon effects in Raman spectra of unsupported vertical graphene sheets[J]. PHYSICAL REVIEW B,2011,83(12). |
| APA | Lin, JJ.,Guo, LW.,Huang, QS.,Jia, YP.,Li, K.,...&Chen, XL.(2011).Anharmonic phonon effects in Raman spectra of unsupported vertical graphene sheets.PHYSICAL REVIEW B,83(12). |
| MLA | Lin, JJ,et al."Anharmonic phonon effects in Raman spectra of unsupported vertical graphene sheets".PHYSICAL REVIEW B 83.12(2011). |
入库方式： OAI收割
来源：物理研究所
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