탄소 나노튜브가 코팅된 은 메탈-메쉬 전극의 특성

Characteristics of Silver Metal-mesh Electrodes Coated by Carbon Nanotubes

  • 김부종 (한양대학교 전자시스템공학과) ;
  • 박종설 (한양대학교 전자시스템공학과) ;
  • 황영진 (한양대학교 전자시스템공학과) ;
  • 박진석 (한양대학교 전자시스템공학과)
  • Kim, Bu-Jong (Dept. of Electronic Systems Engineering, Hanyang University) ;
  • Park, Jong-Seol (Dept. of Electronic Systems Engineering, Hanyang University) ;
  • Hwang, Young-Jin (Dept. of Electronic Systems Engineering, Hanyang University) ;
  • Park, Jin-Seok (Dept. of Electronic Systems Engineering, Hanyang University)
  • 투고 : 2015.03.03
  • 심사 : 2015.03.23
  • 발행 : 2015.03.31

초록

This study demonstrates hybrid-type transparent electrodes for touch screen panels. The hybrid-type electrodes were fabricated by coating carbon nanotubes (CNTs) on metal meshes. To form the metal-meshes, thin films of silver (Ag) were deposited on glass substrates using the sputtering method and then patterned via photolithography to obtain mesh structures whose line width was $10{\mu}m$ and line-to-line spacing was $300{\mu}m$. CNTs were coated on Ag-meshes by using two different methods, such as spray coating and electrophoretic deposition (EPD). For the samples of a Ag-meshes and CNTs-coated Ag-meshes, their surface morphologies, electrical sheet resistances, and visible-range transmittances and reflectances were characterized and compared. The experimental results indicated that the reflectance of Ag-mesh electrodes was substantially reduced by coating of CNTs. Especially, the hybrid electrodes of Ag-meshes with EPD-coated CNTs showed excellent properties such as sheet resistance lower than $20{\Omega}/{\Box}$, transmittance higher than 90 %, and reflectance lower than 8%.

키워드

참고문헌

  1. Park, J. M., Wang, Z. J., Kwon, D. J., Gu, G. Y., and DeVries, K. L., "Electrical properties of transparent CNT and ITO coatings on PET substrate including Nano-structural aspects," Solid-State Electronics., 79, pp. 147-151, (2013). https://doi.org/10.1016/j.sse.2012.05.037
  2. Hecht, D. S., Hu, L., and Lrvin, G., "Emerging Transparent Electrodes Based on Thin Films of Carbon Nanotubes, Graphene, and Metallic Nanostructures," Advanced Materials., 23, pp. 1482-1513, (2011). https://doi.org/10.1002/adma.201003188
  3. Lee, J. Y., Connor, S. T., Cui, Y., and Peumans, P., "Solution-Processed Metal Nanowire Mesh Transparent Electrodes," Nano Letters., 8, pp. 689-692, (2008). https://doi.org/10.1021/nl073296g
  4. Kim, J. W., Lee, S. W., Lee, Y., Jung, S. B., Hong, S. J., and Kwak, M. G., "Synthesis of Ag Nanowires for the Fabrication of Transparent Conductive Electrode," Journal of Nanoscience and Nanotechnology., 13, pp. 6244-6248, (2013). https://doi.org/10.1166/jnn.2013.7702
  5. Lipomi, D. J., Lee, J. A., Vosgueritchian, M., Tee, B. C. K., Bolander, J. A., and Bao, Z., "Electronic Properties of Transparent Conductive Films of PEDOT:PSS on Stretchable Substrates," Chemistry of Materials., 24, pp. 373-382, (2012). https://doi.org/10.1021/cm203216m
  6. Cho, N. K., Jung, Y. U., Chung, K. B., and Kang, S. J., "Electrical, Electronic and Optical Characterization of Multilayer Graphene Films for Transparent Electrodes," Current Nanoscience., 9, pp. 521-524, (2013). https://doi.org/10.2174/15734137113099990057
  7. Shin, K., Park, R. K., Yu, L., Park, C. Y., Lee, Y. S., Lim, Y. S., and Han, J. H., "Improvement of singlewalled carbon nanotube transparent conductive films using substrate pretreatment," Synthetic Metals., 161, pp. 1596-1599, (2011). https://doi.org/10.1016/j.synthmet.2011.05.024
  8. Kim, H. J., Lee, S. H., Lee, J. H., Lee, E. S., J. Choi, H., Jung, J. H., Jung, J.Y., and Choi, D. G., "High Durable AgNW Nanomesh film for a transparent Conducting Electrode," Nano Small Micro., 18, pp. 3767-3774, (2014).
  9. Jang, H. Y., Lee, S. K., Cho, S. H., Ahn, J. H., and Park, S. H., "Fabrication of Metallic Nanomesh: Pt Nano-Mesh as a Proof of Concept for Stretchable and Transparent Electrodes," Chemistry of Materials., 25, pp. 3535-3538, (2013). https://doi.org/10.1021/cm402085k
  10. Lee, T. M., Moh, J. H., Kwak, S. W., Kim, B. M., Jo, J. d., and Kim, I. Y., "Design and Fabrication of Printed transparent electrode with silver mesh," Microelectronic Engineering., 98, pp556-5560, (2012). https://doi.org/10.1016/j.mee.2012.07.003
  11. Choi, Y. M., Kim, K. Y., Lee, E. S., and Lee, J. D., "Fabrication of a single-layer metal-mesh touch screen sensor using reverse-offset printing," Journal of Information Display., 16, pp. 37-41, (2014).
  12. Tang, Z., Wei, Q., and Wei, A., "Metal mesh Lithography," Applied Materials and Interfaces., 3, pp. 4812-4818, (2011). https://doi.org/10.1021/am201305x
  13. Im, H. G., Jin, J. H., Ko, J. H., Lee, J. M., Lee, J . Y., and Bae, B. S., "Flexible transparent conducting composite films using a monolithically embedded AgNW electrode with robust performance stability", Nanoscale., 6, pp. 711-715, (2014). https://doi.org/10.1039/C3NR05348B
  14. Choi, H. J., Choo, S. Y., Jung, P. H., Shin, J. H., Kim, Y. D., and Lee, H., "Uniformly embedded silver nanomesh as highly bendable transparent conducting electrode," Nanotechnology., 26, pp. 055305(8p), (2015). https://doi.org/10.1088/0957-4484/26/5/055305
  15. Cheng, H., Dong, Z., Hu, C., Zhao, Y., Hu, Y., Qu, L., Chen, N., and Dai, L., "Textile electrodes woven by carbon nanotube-graphene hybrid fibers for flexible electrochemical capacitors," Nanoscale., 5, pp 3428-3434, (2013). https://doi.org/10.1039/c3nr00320e
  16. Afraz, A., Rafati, A. A., and Hajian, A., "Analytical sensing of hydrogen peroxide on Ag nanoparticles-multiwalled carbon nanotube-modified glassy carbon electrode," JOURNAL OF SOLID STATE ELECTROCHEMISTRY., 17, pp. 2017-2025, (2013). https://doi.org/10.1007/s10008-013-2057-8
  17. Boccaccini, A. R., Cho, J., Roether, J. A., Thomas, B. J. C., Minay, E. J., Shaffer, M. S. P., "Electrophoretic deposition of carbon nanotubes," CARBON., 44, pp. 3149-3160, (2006). https://doi.org/10.1016/j.carbon.2006.06.021