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报告人简介：
任广禹教授担任美国华盛顿大学(西雅图)材料科学与工程系波音-强森(Boeing-Johnson)讲座教授兼系主任。同时，他还担任华盛顿州清洁能源研究院的首席科学家。任教授的研究兴趣集中在运用分子、聚合物以及生物大分子的自组装行为来有序构建有机/无机功能材料的分子排列，实现其在光子、光电子以及纳米医学材料等领域的应用。目前，他已发表SCI论文560多篇，发明专利50余项，论文总引用次数超26000次，H影响因子高达84。鉴于任教授在有机光电子领域中的开拓性研究和杰出贡献，他被选为多个专业学会的会士(Fellow)，其中包括美国科学促进会(AAAS)、美国材料研究学会(MRS)、美国化学会(ACS)、美国高分子科学与工程学会(PMSE)、美国光学学会(OSA)以及国际光学工程学会(SPIE)。最近，他还当选美国华盛顿州科学院院士。

Biography:
Prof.Alex Jen is currently serving as the Boeing-Johnson Chair Professor and Chair of the Department of Materials Science & Engineering at the University of Washington, Seattle. He is also serving as Chief Scientist for the Clean Energy Institute endowed by the Washington State Governor.  Prof.Alex Jen’s research interest is centered on utilizing molecular, polymeric and biomacromolecular self-assembly to create ordered arrangement of organic and inorganic functional materials for photonics, opto-electronics, nanomedicine, and nanotechnology. He has co-authored more than 560 publications, and has >26,000 citations and a H-index of 84. He is also a co-inventor for more than 50 patents and invention disclosures. For his pioneering contributions in organic photonics and electronics, he was elected as Fellow by several professional societies including AAAS, MRS, ACS, PMSE, OSA, and SPIE. Recently, he has been elected as an Academician by the Washington State Academy of Sciences.

报告摘要：
有机聚合物和钙钛矿杂化物在合成控制，加工及属性调控的进展显著地增强了其太阳能电池性能。聚合物和杂化太阳能电池的性能十分依赖材料吸收光子、激子离解、电荷传输以及在金属/有机/金属氧化物或金属/钙钛矿/金属氧化物界面的效率。在这次讲座中，我们将介绍如何通过有效地整合材料设计以及界面与器件工程以显著提高聚合物和杂化钙钛矿型太阳能电池性能（转换效率>18%）。最后，我们还将介绍一些关于制备串联和半透明太阳能电池的新型器件结构和光学工程策略，以发挥聚合物和钙钛矿太阳能电池的最大潜能。

Abstract:
Advances in controlled synthesis, processing, and tuning of the properties of organic conjugated polymers and perovskites have enabled significantly enhanced performance of organic and hybrid electronic devices. The performance of polymer and hybrid solar cells is strongly dependent on their efficiency in harvesting light, exciton dissociation, charge transport, and charge collection at the metal/organic/metal oxide or the metal/perovskite/metal oxide interfaces. In this talk, the integrated approach of combining material design, interface, and device engineering to significantly improve the performance of polymer and hybrid perovskite photovoltaic cells (PCE of >18%) will be discussed. At the end, several new device architectures and optical engineering strategies to make tandem cells and semitransparent solar cells will be discussed to explore the full promise of polymer and perovskite hybrid solar cells.