The large photo-induced change of reflectivity has been observed in the unique charge separated phase of the Et2Me2Sb[Pd(dmit) 2]2 crystal We observe a clear spectral change due to the disappearance of the charge separated phase by femtosecond photo-excitation in the [Pa(dmit)2] dimer. The dynamics of the photo-excited state depends on the excitation intensity. Obtained results strongly suggest that cooperative effect plays a key role in the photo-excited state of this system, We tentatively classify the observed phenomena as a photo-induced phase transition due to the melting of the charge separation.
|ジャーナル||Physica Status Solidi (C) Current Topics in Solid State Physics|
|出版ステータス||出版済み - 4 6 2009|
|イベント||8th International Conference on Excitonic Processes in Condensed Matter, EXCON'08 - Kyoto, 日本|
継続期間: 6 22 2008 → 6 27 2008
All Science Journal Classification (ASJC) codes