Inducement of homogeneous liquid crystal alignment on surface-reformed polyurethane films via manipulation of ion-beam irradiation incidence angle

References

• Chen, Y., Xu, D., Wu, S.-T., Yamamoto, S., and Haseba, Y. (2013) A low voltage and submillisecond-response polymer-stabilized blue phase liquid crystal. Applied Physics Letters, 102:141116. doi:10.1063/1.4802090.
   Web of Science ®Google Scholar
• Garbovskiy, Y. (2016) Switching between purification and contamination regimes governed by the ionic purity of nanoparticles dispersed in liquid crystals. Applied Physics Letters, 108:121104. doi:10.1063/1.4944779.
   Web of Science ®Google Scholar
• Liu, Y., Park, H.-G., Lee, J.H., Seo, D.-S., Kim, E.-M., and Heo, G.-S. (2015) Electro-optical switching of liquid crystals sandwiched between ion-beam-spurted graphene quantum dots-doped PEDOT:PSS composite layers. Optical Express, 23:34071. doi:10.1364/OE.23.034071.
   PubMed Web of Science ®Google Scholar
• Liu, Y., Lee, J.H., and Seo, D.-S. (2016) Ion beam fabrication of aluminum-doped zinc oxide layer for high-performance liquid crystals alignment. Optical Express, 24: 17424. doi:10.1364/OE.24.017424.
   PubMed Web of Science ®Google Scholar
• Kim, J.B., Lim, J.R., Park, J.S., Ahn, H.J., Lee, M.J., Jo, S.J., Kim, M., Kang, D., Lee, S.J., Kim, Y.S., and Baik, H.K. (2008) The directional peeling effect of nanostructured rigiflex molds on liquid-crystal devices: liquid-crystal alignment and optical properties. Advanced Functional Materials, 18: 1340. doi:10.1002/adfm.200700747.
   Web of Science ®Google Scholar
• Usami, K., Sakamoto, K., and Ushioda, S. (2003) Relation between the molecular orientation of a liquid crystal monolayer and the underlying polyimide film exposed to linearly polarized ultraviolet light. Journal of Applied Physics, 93: 9523. doi:10.1063/1.1572548.
   Web of Science ®Google Scholar
• Crossland, W.A., Morrissy, J.H., and Needham, B. (1976) Tilt angle measurements of nematic phases of cyano-biphenyls aligned by obliquely evaporated films. Journal of Physics D: Applied Physics, 9: 2001. doi:10.1088/0022-3727/9/14/010.
   Web of Science ®Google Scholar
• Lu, M. (2004) Liquid Crystal Orientation Induced by Van der Waals Interaction. Japanese Journal of Applied Physics Particle 1, 43: 8156. doi:10.1143/JJAP.43.8156.
   Web of Science ®Google Scholar
• Oh, B.-Y., Lee, K.-M., Kim, B.-Y., Kim, Y.-H., Han, J.-W., Han, J.-M., Lee, S.-K., and Seo, D.-S. (2008) Surface reformation and electro-optical characteristics of liquid crystal alignment layers using ion beam irradiation. Journal of Applied Physics, 104: 064502. doi:10.1063/1.2978364.
   Web of Science ®Google Scholar
• Na, H.J., Lee, J.W., Lee, W.K., Lim, J.H., Park, H.G., Kim, B.Y., Hwang, J.Y., Han, J.M., and Seo, D.S. (2010) Titanium dioxide surface modification via ion-beam bombardment for vertical alignment of nematic liquid crystal. Optical Letters, 35: 1151. doi:10.1364/OL.35.001151.
   PubMed Web of Science ®Google Scholar
• Lee, W.-K., Oh, B., Lim, J.-H., Park, H.-G., Kim, B., Na, H.-J., and Seo, D.-S. (2009) Vertical alignment of liquid crystals on a fully oxidized HfO2 surface by ion bombardment. Applied Physics Letters, 94: 223507. doi:10.1063/1.3126961.
   Web of Science ®Google Scholar
• Park, H.-G., Kim, Y.-H., Oh, B.-Y., Lee, W.-K., Kim, B.-Y., Seo, D.-S., and Hwang, J.-Y. (2008) Vertically aligned liquid crystals on a γ-Al2O3 alignment film using ion-beam irradiation. Applied Physics Letters, 93: 233507. doi:10.1063/1.3046728.
   Web of Science ®Google Scholar
• Jeong, H.-C., Park, H.-G., Lee, J.H., Oh, B.-Y., and Seo, D.-S. (2015) Superior electro-optical properties of electrically controlled birefringence mode using solution-derived La2O3 films. Journal of Vaccum Science & Technologyl A, 33: 061401. doi:10.1116/1.4926747.
   Web of Science ®Google Scholar
• Jeong, H.-C., Park, H.-G., Lee, J.H., Jang, S.B., Oh, B.-Y., Han, J.-M., and Seo, D.-S. (2016) Homogeneously aligned liquid crystal molecules on reformed poly (methyl methacrylate) via ion-beam irradiation. Optical Materials, 54: 288–293. doi:10.1016/j.optmat.2016.02.045.
   Web of Science ®Google Scholar
• Yu, F., Cao, L., Meng, Z., Lin, N., and Liu, X.Y. (2016) Crosslinked waterborne polyurethane with high waterproof performance. Polymer Chemistry, 7: 3913. doi:10.1039/C6PY00350H.
   Web of Science ®Google Scholar
• González-García, Y., González, S., and Souto, R.M. (2007) Electrochemical and structural properties of a polyurethane coating on steel substrates for corrosion protection. Corrosion Sciences, 49: 3514–3526. doi:10.1016/j.corsci.2007.03.018.
   Web of Science ®Google Scholar
• Pezo, D., Fedeli, M., Bosetti, O., and Nerin, C. (2012) Aromatic amines from polyurethane adhesives in food packaging: The challenge of identification and pattern recognition using Quadrupole-Time of Flight-Mass SpectrometryE. Analytica Chimica Acta, 756: 49–59. doi:10.1016/j.aca.2012.10.031.
   PubMed Web of Science ®Google Scholar
• Theron, J.P., Knoetze, J.H., Sanderson, R.D., Hunter, R., Mequanint, K., Franz, T., Zilla, P., and Bezuidenhout, D. (2010) Modification, crosslinking and reactive electrospinning of a thermoplastic medical polyurethane for vascular graft applications. Acta Biomaterialia, 6:2434–2447. doi:10.1016/j.actbio.2010.01.013.
   PubMed Web of Science ®Google Scholar
• Liu, M., Zhou, M., Yang, H., Zhao, Y., and Hu, Y.A. (2015) Cost-effective polyurethane based activated carbon sponge anode for high-performance microbial fuel cells. RSC Advances, 5:84269–84275. doi:10.1039/C5RA14644E.
   Web of Science ®Google Scholar