OSA's Digital Library

Optical Materials Express

Optical Materials Express

  • Editor: David Hagan
  • Vol. 4, Iss. 4 — Apr. 1, 2014
  • pp: 719–724

Application of buckypaper for preserving cholesteric liquid crystal cells within a certain temperature range

Hao-Kang Ma, Ping-Cheng Chien, Min-Cheng Tsai, Hsin-Yuan Miao, Jih-Hsin Liu, and Chia-Yi Huang  »View Author Affiliations


Optical Materials Express, Vol. 4, Issue 4, pp. 719-724 (2014)
http://dx.doi.org/10.1364/OME.4.000719


View Full Text Article

Enhanced HTML    Acrobat PDF (1919 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Application of buckypaper to cholesteric liquid crystals (CLCs) is demonstrated. The buckypaper functions as a thin film resistant heater and a near-perfect absorber in this study. A planar CLC cell with buckypaper pasted onto one of its surfaces is used to develop a voltage-induced optical attenuator. The intensity of the reflection band of the CLC attenuator can decrease (increase) by the application (removal) of a single-pulse voltage, and the wavelength of the reflection band remains constant as the reflection intensity decreases (increases). The decrease in the reflection intensity is attributable to the cholesteric→isotropic phase transition of the LCs via heating of the buckypaper, and absorption by the black buckypaper. The increase in the reflectance results from the isotropic→cholesteric phase transition of the LCs through cooling of the environment. During cooling, the application of a low DC voltage to the buckypaper can keep the cell temperature constant because thermal equilibrium between the heating of the buckypaper and the cooling of the environment is established. Using this method, the blue phase of a CLC cell can stably exist for more than an hour at room temperature, without the need for a temperature stage, polymer materials or particular LCs.

© 2014 Optical Society of America

OCIS Codes
(000.6850) General : Thermodynamics
(160.3710) Materials : Liquid crystals
(160.4236) Materials : Nanomaterials

ToC Category:
Liquid Crystals

History
Original Manuscript: January 31, 2014
Revised Manuscript: March 10, 2014
Manuscript Accepted: March 11, 2014
Published: March 14, 2014

Virtual Issues
Optical Materials for Flat Panel Displays (2013) Optical Materials Express

Citation
Hao-Kang Ma, Ping-Cheng Chien, Min-Cheng Tsai, Hsin-Yuan Miao, Jih-Hsin Liu, and Chia-Yi Huang, "Application of buckypaper for preserving cholesteric liquid crystal cells within a certain temperature range," Opt. Mater. Express 4, 719-724 (2014)
http://www.opticsinfobase.org/ome/abstract.cfm?URI=ome-4-4-719


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. H. Kikuchi, M. Yokota, Y. Hisakado, H. Yang, and T. Kajiyama, “Polymer-stabilized liquid crystal blue phases,” Nat. Mater.1(1), 64–68 (2002). [CrossRef] [PubMed]
  2. H. J. Coles and M. N. Pivnenko, “Liquid crystal ‘blue phases’ with a wide temperature range,” Nature436(7053), 997–1000 (2005). [CrossRef] [PubMed]
  3. A. Yoshizawa, M. Sato, and J. Rokunohe, “A blue phase observed for a novel chiral compound possessing molecular biaxiality,” J. Mater. Chem.15(32), 3285–3290 (2005). [CrossRef]
  4. G. Lubkowski and D. N. Chigrin, “Carbon nanotubes: numerical simulation of absorbing properties in visible and infrared regime,” AIP Conf. Proc.1291, 130–132 (2010). [CrossRef]
  5. Y. H. Yoon, J. W. Song, D. Kim, J. Kim, J. K. Park, S. K. Oh, and C. S. Han, “Transparent film heater using single-walled carbon nanotubes,” Adv. Mater.19(23), 4284–4287 (2007). [CrossRef]
  6. M. O. Memon, S. Haillot, and K. Lafdi, “Carbon nanofiber based buckypaper used as a thermal interface material,” Carbon49(12), 3820–3828 (2011). [CrossRef]
  7. Z. Wang, Z. Liang, B. Wang, C. Zhang, and L. Kramer, “Processing and property investigation of single-walled carbon nanotube (SWNT) buckypaper/epoxy resin matrix nanocomposites,” Comp. Pt. A: Appl. Sci. Manufact.35(10), 1225–1232 (2004). [CrossRef]
  8. Y. W. Chen, H. Y. Miao, M. Zhang, R. Liang, C. Zhang, and B. Wang, “Analysis of a laser post-process on a buckypaper field emitter for high and uniform electron emission,” Nanotechnology20(32), 325302 (2009). [CrossRef] [PubMed]
  9. M. Podlogar, J. J. Richardson, D. Vengust, N. Daneu, Z. Samardžija, S. Bernik, and A. Rečnik, “Growth of transparent and conductive polycrystalline (0001)-ZnO films on glass substrates under low-temperature hydrothermal conditions,” Adv. Mater.22, 3136–3145 (2012).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Figures

Fig. 1 Fig. 2 Fig. 3
 
Fig. 4 Fig. 5
 

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited