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A Study on Reliability of Liquid-Crystal for Smart Window

액정 스마트윈도우의 신뢰성에 대한 연구

  • Received : 2020.09.04
  • Accepted : 2020.09.17
  • Published : 2020.11.01

Abstract

In recent years, the challenge of higher energy efficiency has emerged as urban buildings have become taller, and the area of window glasses has increased. To address the problem of energy efficiency in buildings, research on smart windows is being actively conducted. In this study, an accelerated experiment for thermal stability was conducted to fabricate a liquid crystal cell applicable to external windows. It was confirmed from the study that the function is maintained even in a high-temperature external environment through the change in transmittance by voltage. Compared with the initial transmittance, after the passage of time, the smart window cell to which the sealant was applied showed a small change in transmittance of 1~2%. This result confirmed the thermal stability of the liquid crystal-based smart window.

Keywords

References

  1. C. M. Lampert, Sol. Energy Mater. Sol. Cells, 52, 207 (1998). [DOI: https://doi.org/10.1016/s0927-0248(97)00279-1]
  2. R. Baetens, B. P. Jelle, and A. Gustavsen, Sol. Energy Mater. Sol. Cells, 94, 87 (2010). [DOI: https://doi.org/10.1016/j.solmat.2009.08.021]
  3. S. D. Rezaei, S. Shannigrahi, and S. Ramakrishna, Sol. Energy Mater. Sol. Cells, 159, 26 (2017). [DOI: https://doi.org/10.1016/j.solmat.2016.08.026]
  4. S. B. Gwon, S. J. Lee, S. Y. Eom, D. S. Yun, and B. Y. Lee, Information Display, 20, 3 (2019).
  5. D. W. Ha, K. S. Park, and W. T. Son, Proc. the SAREK Conference (Yongpyong, Korea, 2008). p. 857.
  6. X. Li, K. Perera, J. He, A. Gumyusenge, and J. Mei, J. Mater. Chem. C, 7, 12761 (2019). [DOI: https://doi.org/10.1039/C9TC02861G]
  7. K. H. Kim, KISTI Market Report, 5, 3 (2015).
  8. A. Ghosh and B. Norton, Sol. Energy Mater. Sol. Cells, 163, 178 (2017). [DOI: https://doi.org/10.1016/j.solmat.2017.01.036]
  9. S. Kumar, H. Hong, W. Choi, I. Akhtar, M. A. Rehman, and Y. Seo, RSC Adv., 9, 12645 (2019). [DOI: https://doi.org/10.1039/c9ra00729f]
  10. B. G. Park, S. K. Kim, S. W. Lee, S. Y. So, and J. Lee, J. Korean Inst. Electr. Electron. Mater. Eng., 33, 271 (2020). [DOI: https://doi.org/10.4313/JKEM.2020.33.4.271]
  11. K. I. Kim, KISTI Market Report, 14, 1 (2016).
  12. H. K. Chung, Y. I. Kim, J. H. Cho, and K. S. Chung, J. Energy Eng., 21, 211 (2012). [DOI: https://doi.org/10.5855/energy.2012.21.3.211]