A Solution Processable Flexible Transparent Conductive Graphene/PEDOT: PSS Film Fabricated by Spin and Blade Coating |
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| Authors: | Xiaozhu Fang Zhijun Fan Yichen Gu Jiawen Shi Min Chen Xuewen Chen Shaohua Qiu Fatemeh Zabihi Morteza Eslamian Qianli Chen |
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| Institution: | 1.University of Michigan - Shanghai Jiao Tong University Joint Institute,Shanghai Jiao Tong University,Shanghai,China;2.Shenzhen SAPO Photoelectric Co., Ltd.,Guangdong,China;3.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering,Donghua University,Shanghai,China;4.State Key Laboratory for Composite Materials, School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai,China |
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| Abstract: | Flexible transparent conductive films were made on PET substrates by spin and blade coating, using graphene sheets dispersed in PEDOT: PSS solution. Ultrasonic substrate vibration was used to improve microstructure and properties of the films. Comparing to the pristine PEDOT: PSS film, the sheet resistance is 3 to 4 orders of magnitude lower with the addition of graphene. The conductivity and reproducibility of the film are improved for two-layer films comparing to one-layer films, with a reduction in transparency. Films prepared with substrate vibration showed lower sheet resistance for one-layer films, as the size of dewetting areas is reduced. In addition, large-area flexible films with desirable conductivity and transmittance were successfully fabricated by blade coating, which is promising, as the process is low-cost, scalable and compatible with roll-to-roll manufacturing. |
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