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Journal Article Effect of Supersonic Spraying Impact Velocity on Opto-Electric Properties of Transparent Conducting Flexible Films Consisting of Silver Nanowire, ITO, and Polyimide Multilayers
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Authors
김태건, 이종건, 박찬우, 조홍석, 김민우, Maikel F.A.M. van Hest, Cho Daehyung, Chung Yong-Duck, 윤석구
Issue Date
201803
Source
Journal of Alloys and Compounds, v.739, pp.653-659
ISSN
0925-8388
Publisher
Elsevier
DOI
https://dx.doi.org/10.1016/j.jallcom.2017.12.237
Project Code
17JB1600, Development of colorful flexible thin film solar cells with nontoxic buffer layer, Chung Yong-Duck
Abstract
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 (Rs = 31 廓/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/AgNW films as well as PI/ZnO/indium tin oxide/AgNW films, and the changes in their electrical properties with bending were compared.
KSP Keywords
Atomic force microscope(AFM), Cyclic bending tests, Deposition of silver, Flexible film, Glass substrate, High transmittance, Impact speed, Impact velocity, Scanning electron microscopy(S.E.M.), Silver nanowires(AgNWs), Spray coating