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【学术报告】-Qibing Pei 教授-加州大学洛杉矶分校
时间:2015-06-24 11:12来源:未知 作者:Zhang shengli 点击:
时 间:      2015年6月25日  上午10:00           
地 点:      340栋201
报告人:   Qibing Pei 教授 加州大学洛杉矶分校
报告题目:Hybrid transparent conductors for stretchable and wearable electronics
邀请人:    曾海波
主办单位:纳米光电材料研究所

报告内容简介:
ntrinsically stretchable electronics entails the electrode, semiconductor, and dielectric materials all being deformable, and that a suitable deposition, patterning, and overlaying protocols are developed for the soft materials. In this presentation, I will focus on (1) the development of a polymer composite comprising surface-embedded silver nanowires with high transparency, high surface conductivity, and low surface roughness, and (2) the in-situ formation of a PIN junction in a polymer thin film to simplify the architecture of polymer light emitting diodes. The mechanical properties of the transparent composite electrode are determined by the polymer matrix employed, and demonstrated properties include flexibility, shape memory, self-healing, and rubbery deformation. The new electrode has been used to replace ITO/glass in fabricating organic light emitting diodes with significantly enhanced luminous efficiency. We have also demonstrated stretchable transparent Joule heater, touch and pressure sensors, large-strain actuators, and thin film transistors, all with rubbery elasticity. The PIN junction formation allows the use of a relatively thick emissive polymer layer and any conductive material as the electrodes in OLEDs. The combination the new OLED architecture and the composite electrode allows for all-solution fabrication of OLEDs and the demonstration of highly stretchable OLEDs. 

报告人简介:
Qibing Pei is Professor of Materials Science and Engineering at UCLA. He specializes in synthetic polymers and composites for electronic, electromechanical, and photonic applications, with over 140 peer-reviewed journal publications and 40 awarded US patents. His current research activities include synthesis of conjugated polymers, flexible and stretchable organic electronic devices, nanostructured composites for radiation scintillation, polymer actuators and generators. He received a B.S. degree in chemistry from Nanjing University, China, and a PhD in polymer science from the Institute of Chemistry, Chinese Academy of Science, Beijing. He was a postdoctoral scientist in Linköping University, Sweden, senior chemist at UNIAX Corporation (now DuPont Display), Santa Barbara, California, and senior research engineer at SRI International, Menlo Park, California. He has been on the UCLA faculty since 2004. He is a Fellow of the SPIE, member of the American Chemical Society and Materials Research Society, Associate Editor of Smart Materials and Structures, Soft Robotics, and serves on the Advisory Board of International Journal of Smart and Nano Materials.
(责任编辑:Zhang shengli)