Uniform anchoring of nematic liquid crystals on self-assembled monolayers formed from alkanethiols on obliquely deposited films of gold

Langmuir

Volumn 12, Issue 10, 1996, Pages 2587-2593

  Gupta, Vinay K ^a   Abbott, Nicholas L ^a  

^a University of California   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 4244134118     PISSN: 07437463     EISSN: None     Source Type: Journal    
DOI: 10.1021/la960003i     Document Type: Article

References (61)

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42. 2) for 30 min followed by sequential rinses of deionized water and methanol, followed by drying under a stream of nitrogen. Caution: piranha solution is a strongly oxidizing mixture that can undergo explosion upon contact with organic materials. :
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47. The morphology of gold within thin films depends on the substrate supporting the gold and the temperature during deposition of the gold. Past studies have shown that gold deposited onto glass at room temperature has a pebbly texture. See: (a) Chidsey, C. E. D.; Loiacono, D. N.; Sleator, T.; Nakahar, S. Surf. Sci. 1988, 200, 45. (b) Hwang, J.; Dubson, M. A. J. Appl. Phys. 1992, 72, 1852. (c) DeRose, J. A.; Lampner, D. B.; Lindsay, S. M.; Tao, N. J. J. Vac. Sci. Technol., A 1993, 11, 776.
48. The morphology of gold within thin films depends on the substrate supporting the gold and the temperature during deposition of the gold. Past studies have shown that gold deposited onto glass at room temperature has a pebbly texture. See: (a) Chidsey, C. E. D.; Loiacono, D. N.; Sleator, T.; Nakahar, S. Surf. Sci. 1988, 200, 45. (b) Hwang, J.; Dubson, M. A. J. Appl. Phys. 1992, 72, 1852. (c) DeRose, J. A.; Lampner, D. B.; Lindsay, S. M.; Tao, N. J. J. Vac. Sci. Technol., A 1993, 11, 776.
49. o) of a nematic phase of 5CB does, therefore, lie between 0.17 and 0.19. Planar anchoring of 5CB will give rise to a birefringence of 0.17-0.19.
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60. 2, Au, Ag). Alignment of liquid crystals on obliquely deposited films cannot, therefore, be described purely on the basis of an elastic interaction of the liquid crystal with the topography of the surface. See refs 4 and 22.
61. This work was supported in part by the MRSEC Program of the NSF (Grant DMR-9400354) and an NSF CAREER award to N.LA