Charge transfer mechanisms in organic crystals revealed by intermolecular vibrational excitations

Research Project

Project/Area Number	24655011
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Single-year Grants
Research Field	Physical chemistry
Research Institution	Kyoto University
Principal Investigator	WATANABE Kazuya 京都大学, 理学(系)研究科(研究院), 准教授 (30300718)
Project Period (FY)	2012-04-01 – 2014-03-31
Project Status	Completed (Fiscal Year 2013)
Budget Amount *help	¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000) Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000) Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords	有機固体 / 電子励起状態 / コヒーレントフォノン / 超高速分光 / 格子振動 / 励起状態ダイナミクス / 非線形分光
Research Abstract	In this project we aimed to study an effect of phonon mode excitation on an excited state dynamics in organic crystals. We have developed an optical set up that generates femtosecond pulse trains with variable pulse repetition rates in order to excite phonon modes with mode selective fashion. We applied it to singlet fission process in rubrene crystal and investigated the effect of the phonon excitations on the fission rates. We also studied a coherent phonon dynamics in rubrene crystal during the fission process.

Report

(3 results)