Browse > Article
http://dx.doi.org/10.5370/JEET.2017.12.1.284

Electro-optical Properties of Twisted Nematic Liquid Crystal Cell with Silver Nanowire Network Electrodes  

Jang, Kyeong-Wook (Department of Electrical Engineering, Gachon University)
Han, Jeong-Min (Department of Electronic, Seoil University)
Shon, Jin-Geun (Department of Electrical Engineering, Gachon University)
Publication Information
Journal of Electrical Engineering and Technology / v.12, no.1, 2017 , pp. 284-287 More about this Journal
Abstract
This paper introduces liquid crystal (LC) alignment and its electro-optical properties in the LC cells with silver nanowire (AgNW) networks. The AgNW network was used as an electrode of LC cell as a substitute for an indium-tin-oxide (ITO) film. LC alignment characteristics in the LC cell using AgNW networks, which have two different sheet resistances of $60{\Omega}/m^2$ and $80{\Omega}/m^2$, were observed. The LC alignment characteristics including pretilt angle, LC alignment state, and thermal stability are similar irrespective of sheet resistance of AgNW network. However, twisted-nematic (TN)-LC cell normally operated when using AgNW network with sheet resistance of $80{\Omega}/m^2$. Electrooptical properties of TN-LC cell exhibited competitive performance compared to those of TN-LC cell based on conventional ITO electrode, which allow new approaches to replace conventional ITO electrode in display technology.
Keywords
Electrode; Electro-optical properties; Liquid crystal alignment; Silver nanowire;
Citations & Related Records
연도 인용수 순위
  • Reference
1 D.-S. Seo, S. Kobayashi, M. Nishikawa, "Study of the pretilt angle for 5CB on rubbed polyimide films containing trifluoromethyl moiety and analysis of the surface atomic concentration of F/C(%) with an electron spectroscope for chemical analysis", Appl. Phys. Lett. 61, 2392 (1992).   DOI
2 T. J. Scheffer and J. Nehring, "Accurate determination of liquid‐crystal tilt bias angles", J. Appl. Phys. 48, 1783 (1977).   DOI
3 J. Lee, P. Lee, H. B. Lee, S. Hong, I. Lee, J. Yeo, S. S. Lee, T.-S. Kim, D. Lee, and S. H. Ko, "Room-Temperature Nanosoldering of a Very Long Metal Nanowire Network by Conducting-Polymer-Assisted Joining for a Flexible Touch-Panel Application", Adv. Func. Mater. 23, 4171 (2013).   DOI
4 Y. Kim, C.-H. Song, M.-G. Kwak, B.-K. Ju, and J.-W. Kim, "Flexible touch sensor with finely patterned Ag nanowires buried at the surface of a colorless polyimide film", RSC Adv. 5, 42500 (2015).   DOI
5 X.-Y. Zeng, Q.-K. Zhang, R.-M. Yu, and C.-Z. Lu, "A New Transparent Conductor: Silver Nanowire Film Buried at the Surface of a Transparent Polymer", Adv. Mater. 22, 4484 (2010).   DOI
6 W. Gaynor, S. Hofmann, M. G. Christoforo, C. Sachse, S. Mehra, A. Salleo, M. D. McGehee, M. C. Gather, B. Lussem, L. Muller-Meskamp, P. Peumans, and K. Leo, "Color in the Corners: ITO-Free White OLEDs with Angular Color Stability", Adv. Mater. 25, 4006 (2013).   DOI
7 Y.-H. Duan, Y. Duan, X. Wang, D. Yang, Y.-Q. Yang, P. Chen, F.-B. Sun, K.-W. Xue, and Y. Zhao, "Highly flexible peeled-off silver nanowire transparent anode using in organic light-emitting devices", Appl. Surf. Sci. 351, 445 (2015).   DOI
8 L. Hu, H. Wu, and Y. Cui, "Metal nanogrids, nanowires, and nanofibers for transparent electrodes", MRS Bulletin 36, 760 (2011).   DOI
9 J.-Y. Lee, S. T. Connor, Y. Cui, and P. Peumans, "Semitransparent Organic Photovoltaic Cells with Laminated Top Electrode", Nano Lett. 10, 1276 (2010).   DOI
10 F. Guo, P. Kubis, T. Stubhan, N. Li, D. Baran, T. Przybilla, E. Spiecker, K. Forberich, and C. J. Brabec, "Fully Solution-Processing Route toward Highly Transparent Polymer Solar Cells", ACS Appl. Mater. Interfaces 6, 18251 (2014).   DOI
11 D.-S. Leem, A. Edwards, M. Faist, J. Nelson, D. D. C. Bradley, and J. C. de Mello, "Efficient Organic Solar Cells with Solution-Processed Silver Nanowire Electrodes", Adv. Mater. 23, 4371 (2011).   DOI
12 C.-H. Chung, T.-B. Song, B. Bob, R. Zhu, and Y. Yang, "Solution-processed flexible transparent conductors composed of silver nanowire networks embedded in indium tin oxide nanoparticle matrices" in Nano Res. 5, 805 (2012).
13 S. M. Bergin, Y.-H. Chen, A. R. Rathmell, P. Charbonneau, Z.-Y. Li, and B. J. Wiley, "The effect of nanowire length and diameter on the properties of transparent, conducting nanowire films", Nanoscale 4, 1996 (2012).   DOI
14 L. Hu, H. S. Kim, J.-Y. Lee, P. Peumans, and Y. Cui, "Scalable Coating and Properties of Transparent, Flexible, Silver Nanowire Electrode", ACS Nano 4, 2955 (2010).   DOI
15 N. E. Hjerrild, D. C. J. Neo, A. Kasdi, H. E. Assender, J. H. Warner, and A. A. R. Watt, "Transfer Printed Silver Nanowire Transparent Conductors for PbSZnO Heterojunction Quantum Dot Solar Cells", ACS Appl. Mater. Interfaces 7, 6417 (2015).   DOI