Coming Colloquium


Department of Physics&
Institute of Advanced Materials




Unraveling the Fundamental Mechanism in Ternary Organic Bulk Heterojunctions


Professor Xiao-Tao HAO
School of Physics, State Key Laboratory of Crystal Materials,
Shandong University, Jinan, Shandong 250100, China


Date: : Friday, June 9, 2017
Time: 11:00am – 12:00am (Tea will be served)
Venue: SCT909, Science Tower, HSH Campus


Ternary bulk heterojunction is an effective strategy to achieve high efficient organic photovoltaic devices. Understanding the relationship of the complex morphology and the fundamental physical processes in the ternary system plays a key role to realize efficient electron transfer and enhance the device efficiency.

Here, we investigated the ternary organic photovoltaic systems including two donors and one accepter as model materials. Various physical methods were adopted to adjust the morphology of the ternary blend films at nanoscale. Advanced synchrotron based techniques were employed to quantitatively analyze the morphology at multiple length scale. The photophysical dynamics including charge separation/transport, excited state characteristics were investigated on ultrafast temporal scale via the time resolved spectroscopy. We have attempted to unravel the fundamental mechanism of synergistic effect in ternary bulk-heterojunction blends for photovoltaic applications.

All Interested Are Welcome!
For enquiry: 3411-5145