报告题目（Title）： Ultrafast coherent effects on charge photogeneration in non-fullerene organic photovoltaic materials
报 告 人（Speaker）： 张春峰 (南京大学物太阳成集团tyc33455，微结构物理国家重点实验室)
报告时间（Time）： 2019年6月21日 （周五）10:30
报告地点（Place）：校本部G309
邀请人（inviter）：马国宏
报告摘要（Abstract）：The landscape of photovoltaic technology has been dramatically changed by the rapid development of organic solar cells using non-fullerene acceptors. These non-fullerene devices are featured with efficient charge generation upon small driving energies at donor-acceptor interfaces, which cannot be explained by available models established within the classical framework. In this talk, I’ll show that coherent vibronic coupling is responsible for the highly efficient charge photogeneration in the non-fullerene OPV blends by using two-dimensional electronic spectroscopy.
