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报告题目:Sino-Danish Joint Research on plastic solar cells - Novel donor-acceptor polymers and their photovoltaic properties
报告人:于冬宏 副教授 丹麦奥尔堡大学生物、化学与环境工程学院
时间:7月 26 号上午10:00
地点:唐楼308会议室
报告人简介:
于冬宏博士,1969年出生,1987年至1994年就读于吉林大学化学系高分子化学与物理专业,先后获得学士和硕士学位,1997年11月在中国科学院长春应用化学研究所高分子化学与物理国家重点实验室获得博士学位,1997年10月到2001年9月先后在中国科学院长春应用化学研究所高分子化学与物理国家重点实验室、日本通产省工业技术研究院的国家材料与化学研究所、丹麦奥尔堡大学的产品学院等单位任职,2006年至今为丹麦奥尔堡大学生物,化学与环境工程学院副教授。研究领域涉及有机太阳能电池材料、聚合物发光二极管、分子印迹聚合物 (分子识别,生物传感)以及无机有机纳米杂化材料等。先后承担了丹麦技术创新部基金、丹麦国家自然科学基金以及丹麦国家战略研究基金,科研总经费1250万丹麦克朗。发表SCI 收录的 学术论文61篇,2009年获得丹麦奥尔堡大学最佳教师奖。
Abstract: The Sino-Danish joint research between two Danish Universities, namely the Technical
University of Denmark (DTU), and Aalborg University (AAU), was initiated in 2009. Such two
teams have built up effective and solid collaboration in respects to solar cell materials and device
fabrication. Students exchange program plays an important role in such co-operations. In AAU, part
of our work was carried out with series of donor-acceptor low band gap polymers composed of
alternating dithienopyrrole or its derivative as donors and phthalimide or thieno[3,4-c]pyrrole-4,6-
dione as acceptors are synthesized by Stille coupling polymerization. All polymers show strong
absorption in the visible region, for polymers possessing thieno[3,4-c]pyrrole-4,6-dione as an
acceptor, their film absorption covers the region of 500-800 nm and 500-750 nm respectively,
which makes them attractive as low band gap polymer solar cell (PSC) materials. With the
incorporation of thiophene bridges, thieno[3,4-c]pyrrole-4,6-dione containing products have 0.24
and 0.21 e V higher HOMO energy levels than phthalimide polymers, respectively. A band gap as
low as 1.66 e V is obtained for one of the polymers. An up-scaling experiment is performed as bulk-
heterojunction PSCs with an inverted device geometry fabricated on small scale by spin coating and
on large scale using roll-to-roll (R2R) slot-die coating and screen printing, which are relative better
performance than a standard P3HT/PCBM driven device.