Inelastic x-ray scattering study of exciton properties in an organic molecular crystal
文献类型：期刊论文
| 作者 | Yang, K.; Chen, L. P.; Cai, Y. Q.; Hiraoka, N.; Li, S.; Zhao, J. F.; Shen, D. W.; Song, H. F.; Tian, H.; Bai, L. H. |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2007-01-19 |
| 卷号 | 98期号:3 |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/PhysRevLett.98.036404 |
| 英文摘要 | Excitons in a complex organic molecular crystal were studied by inelastic x-ray scattering (IXS) for the first time. The dynamic dielectric response function is measured over a large momentum transfer region, from which an exciton dispersion of 130 meV is observed. Semiempirical quantum chemical calculations reproduce well the momentum dependence of the measured dynamic dielectric responses, and thus unambiguously indicate that the lowest Frenkel exciton is confined within a fraction of the complex molecule. Our results demonstrate that IXS is a powerful tool for studying excitons in complex organic molecular systems. Besides the energy position, the IXS spectra provide a stringent test on the validity of the theoretically calculated exciton wave functions. |
| 语种 | 英语 |
| WOS记录号 | WOS:000243587200042 |
| 出版者 | AMERICAN PHYSICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/60677]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yang, K. |
| 作者单位 | 1.Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China 2.Fudan Univ, Appl Surface Phys State Key Lab, Shanghai 200433, Peoples R China 3.Chinese Acad Sci, Inst Chem, BNLMS, Key Lab Organ Solids, Beijing 100080, Peoples R China 4.Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan 5.E China Univ Sci & Technol, Adv Mat Lab, Shanghai 200237, Peoples R China 6.E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, K.,Chen, L. P.,Cai, Y. Q.,et al. Inelastic x-ray scattering study of exciton properties in an organic molecular crystal[J]. PHYSICAL REVIEW LETTERS,2007,98(3). |
| APA | Yang, K..,Chen, L. P..,Cai, Y. Q..,Hiraoka, N..,Li, S..,...&Feng, D. L..(2007).Inelastic x-ray scattering study of exciton properties in an organic molecular crystal.PHYSICAL REVIEW LETTERS,98(3). |
| MLA | Yang, K.,et al."Inelastic x-ray scattering study of exciton properties in an organic molecular crystal".PHYSICAL REVIEW LETTERS 98.3(2007). |
入库方式： OAI收割
来源：化学研究所
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