공업화학전망 (Prospectives of Industrial Chemistry)

한국공업화학회 (The Korean Society of Industrial and Engineering Chemistry)
권호 표지

차세대 다기능 전기변색 소자

Next-Generation Multifunctional Electrochromic Devices

  • 윤태용 (서울시립대학교 화학공학과) ;
  • 문홍철 (서울시립대학교 화학공학과)
  • Yun, Tae Yong (Department of Chemical Engineering, University of Seoul) ;
  • Moon, Hong Chul (Department of Chemical Engineering, University of Seoul)
  • 발행 : 2020.04.30

⟨ 이전 논문 다음 논문 ⟩

초록

전기변색 물질은 전압을 인가하였을 때 산화-환원 반응을 통해 흡수도나 투과도 같은 광학적 물성 변화를 보인다. 이러한 전기변색 물질에 기반한 전기변색 소자는 높은 투과도 변화, 낮은 구동 전압, 간단한 소자 구조 등 다양한 장점을 가지고 있어 차세대 투명 디스플레이로 각광받고 있다. 최근에는 이러한 전기변색 소자에 변색 특성 이외에 유연성 및 에너지 저장성 등 다양한 기능을 추가하는 연구가 활발하게 이루어지고 있다. 본 기고문에서는 전기변색 소자의 기본적인 구동 원리 및 다기능 개발 동향 등에 대해 알아보고자 한다.

키워드

참고문헌

  1. K.-W. Kim, H. Oh, J. Bae, H. Kim, H. C. Moon, and S. H. Kim, Electrostatic force-assisted dispensing printed electrochromic gels for low-voltage displays, ACS Appl. Mater. Interfaces, 9, 18994-19000 (2017). https://doi.org/10.1021/acsami.7b00946
  2. J. Bae, H. Kim, H. C. Moon, and S. H. Kim, Low-voltage, simple WO3-based electrochromic devices by directly incorporating an anodic species into the electrolyte, J. Mater. Chem. C, 4, 10887-10892 (2016). https://doi.org/10.1039/C6TC03463B
  3. G. Cai, P. Darmawan, M. Cui, J. Chen, X. Wang, A. L.-S. Eh, S. Magdassi, and P. S. Lee, Inkjet-printed all solid-state electrochromic devices based on NiO/WO3 nanoparticle complementary electrodes, Nanoscale, 8, 348-357 (2016). https://doi.org/10.1039/C5NR06995E
  4. C. Yan, W. Kang, J. Wang, M. Cui, X. Wang, C. Y. Foo, K. J. Chee, and P. S. Lee, Stretchable and wearable electrochromic devices, ACS Nano, 8, 316-322 (2014). https://doi.org/10.1021/nn404061g
  5. K. Madasamy, D. Velayutham, V. Suryanarayanan, M. Kathiresan, and K.-C. Ho, Viologen-based electrochromic materials and devices, J. Mater. Chem. C, 7, 4622-4637 (2019). https://doi.org/10.1039/c9tc00416e
  6. S.-Y. Kao, H.-C. Lu, C.-W. Kung, H.-W. Chen, T.-H. Chang, and K.-C. Ho, Thermally cured dual functional viologen-based all-in-one electrochromic devices with panchromatic modulation, ACS Appl. Mater. Interfaces, 8, 4175-4184 (2016). https://doi.org/10.1021/acsami.5b11947
  7. H. C. Moon, T. P. Lodge, and C. D. Frisbie, Solution processable, electrochromic ion gels for sub-1V, flexible display on plastic, Chem. Mater., 27, 1420-1425 (2015). https://doi.org/10.1021/acs.chemmater.5b00026
  8. H. C. Moon, C.-H. Kim, T. P. Lodge, and C. D. Frisbie, Multicolored, low power, flexible electrochromic devices based on ion gels, ACS Appl. Mater. Interfaces, 8, 6252-6260 (2016). https://doi.org/10.1021/acsami.6b01307
  9. M. R. Fernandez, E. Z. Casanova, and I. G. Alonso, Review of display technologies focusing on power consumption, Sustainability, 7, 10854-10875 (2015). https://doi.org/10.3390/su70810854
  10. H. Oh, D. G. Seo, T. Y. Yun, C. Y. Kim, and H. C. Moon, Voltage-tunable multicolor, sub-1.5V, flexible electrochromic devices based on ion gels, ACS Appl. Mater. Interfaces, 9, 7658-7665 (2017). https://doi.org/10.1021/acsami.7b00624
  11. H. Oh, J. K. Lee, Y. M. Kim, T. Y. Yun, and H. C. Moon, User-customized, multicolor, transparent electrochemical displays based on oxidatively tuned electrochromic ion gels, ACS Appl. Mater. Interfaces, 11, 45959-45968 (2019). https://doi.org/10.1021/acsami.9b15288
  12. D. G. Seo and H. C. Moon, Mechanically robust, highly ion conductive gels based on random copolymers for bending durable flexible electrochemical devices, Adv. Funct. Mater., 28, 1706948 (2018). https://doi.org/10.1002/adfm.201706948
  13. T. Y. Yun, X. Li, J. Bae, S. H. Kim, and H. C. Moon, Non-volatile, Li-doped ion gel electrolytes for flexible WO3-based electrochromic devices, Mater. Design, 162, 45-51 (2019). https://doi.org/10.1016/j.matdes.2018.11.016
  14. X. Li, T. Y. Yun, K.-W. Kim, S. H. Kim, and H. C. Moon, Voltage-tunable dual-image of electrostatic force-assisted dispensing printed, tungsten trioxide-based electrochromic devices with a symmetric configuration, ACS Appl. Mater. Interfaces, 12, 4022-4030 (2020). https://doi.org/10.1021/acsami.9b21254
  15. T. Y. Yun, X. Li, S. H. Kim, and H. C. Moon, Dual-function electrochromic supercapacitors displaying real-time capacity in color, ACS Appl. Mater. Interfaces, 10, 43993-43999 (2018). https://doi.org/10.1021/acsami.8b15066
  16. J. Cho, T. Y. Yun, H. Y. Noh, S. H. Baek, M. Nam, B. Kim, H. C. Moon, and D.-H. Ko, Semitransparent energy-storing functional photovoltaics monolithically integrated with electrochromic supercapacitors, Adv. Funct. Mater., DOI:10.1002/adfm.201909601 (2020).