Effect of supersonic spraying impact velocity on opto-electric properties of transparent conducting flexible films consisting of silver nanowire, ITO, and polyimide multilayers

JOURNAL OF ALLOYS AND COMPOUNDS

卷:739

Article

Kim, Tae-Gun¹  Lee, Jong-Gun¹  Park, Chan-Woo¹  Jo, Hong-Seok¹  Kim, Min-Woo¹  van Hest, Maikel F. A. M.²  Cho, Dae-Hyung³  Chung, Yong-Duck³  Yoon, Sam S.¹ 

[1] Korea Univ, Sch Mech Engn, Seoul 02841, South Korea

[2] Natl Renewable Energy Lab, Golden, CO 80401 USA

[3] ETRI, 218 Gajeong Ro, Daejeon 34129, South Korea

关键词: Supersonic spray;    Self-fusion;    Silver nanowires;    Transparent conducting film;    Flexible substrate;   

DOI  :  10.1016/j.jallcom.2017.12.237

来源: Elsevier

【 摘 要 】

We demonstrate the use of supersonic spraying for the deposition of silver nanowires (AgNWs) on a flexible polyimide (PI) substrate for the formation of transparent and conducting films (TCF) as an alternative to nonflexible ITO (indium tin oxide). The self-fused intersections of the NWs resulted in films with a low sheet resistance (R-s = 31 Omega/sq) and fairly high transmittance (Tr = 92%) on a glass substrate. The effect of the impact speed of the supersonically sprayed AgNWs on the opto-electric properties of the flexible TCF was evaluated by varying the spray coating conditions. The fabricated films were characterized by X-ray diffraction analysis, atomic force microscopy, ultraviolet-visible spectroscopy, and scanning electron microscopy. Finally, cyclic bending tests were performed on the PI/AgNWfilms as well as PI/ZnO/indium tin oxide/AgNW films, and the changes in their electrical properties with bending were compared. (c) 2017 Elsevier B.V. All rights reserved.

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