A Solution Processable Flexible Transparent Conductive Graphene/PEDOT : PSS Film Fabricated by Spin and Blade Coating

doi:10.1007/s12204-018-1915-z

Journal of Shanghai Jiao Tong University (Science) ›› 2018, Vol. 23 ›› Issue (1): 106-111.doi: 10.1007/s12204-018-1915-z

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A Solution Processable Flexible Transparent Conductive Graphene/PEDOT : PSS Film Fabricated by Spin and Blade Coating

(1. University of Michigan - Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai 200240, China; 2. Shenzhen SAPO Photoelectric Co., Ltd., Shenzhen 518108, Guangdong, China; 3. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China; 4. State Key Laboratory for Composite Materials, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)
(1. University of Michigan - Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai 200240, China; 2. Shenzhen SAPO Photoelectric Co., Ltd., Shenzhen 518108, Guangdong, China; 3. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China; 4. State Key Laboratory for Composite Materials, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)

Online:2018-02-01 Published:2018-02-01
Contact: CHEN Qianli(陈倩栎) E-mail:qianli.chen@sjtu.edu.cn

Abstract

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.

Key words: graphene| PEDOT: PSS| solution-processing| blade coating| ultrasonic substrate vibration

摘要： 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.

关键词: graphene| PEDOT: PSS| solution-processing| blade coating| ultrasonic substrate vibration

CLC Number:

TB 43

FANG Xiaozhu1 (房霄竹), FAN Zhijun1 (范志君), GU Yichen1 (顾宜宸),SHI Jiawen1 (史佳雯), CHEN Min2 (陈敏), CHEN Xuewen2 (陈学文),QIU Shaohua2 (邱韶华), ZABIHI Fatemeh3, ESLAMIAN Morteza1,4, CHEN Qianli1,4* (陈倩栎). A Solution Processable Flexible Transparent Conductive Graphene/PEDOT : PSS Film Fabricated by Spin and Blade Coating[J]. Journal of Shanghai Jiao Tong University (Science), 2018, 23(1): 106-111.

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A Solution Processable Flexible Transparent Conductive Graphene/PEDOT : PSS Film Fabricated by Spin and Blade Coating

A Solution Processable Flexible Transparent Conductive Graphene/PEDOT : PSS Film Fabricated by Spin and Blade Coating

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