| 학회 |
한국재료학회 |
| 학술대회 |
2014년 봄 (05/15 ~ 05/16, 창원컨벤션센터) |
| 권호 |
20권 1호 |
| 발표분야 |
F. 광기능/디스플레이 재료(Optical Functional and Display Materials) |
| 제목 |
Monolithic solid-state electrochromics based on inorganic materials |
| 초록 |
Electrochromic materials, which can reversibly change their optical properties under an applied electric field, have attracted in various applications such as smart windows, optical displays and rear-view mirrors. Electrochromic devices (ECDs) contain an electrochromic film in contact with an electrolyte adjacent to an ion storage layer, and these three layers are sandwiched between the two transparent conducting films. For the simple and large-scale fabrication, ECDs which consist of all solid-state materials are advantageous. In this study, monolithic solid-state form of ECDs was fabricated on single glass substrate by magnetron sputtering. The ECDs exhibited the multilayer structure of ITO/WO3/Ta2O5/NiO/ITO on glass substrate. The WO3, Ta2O5 and NiO were used as electrochromic, solid electrolyte and ion storage layer, respectively. Sputtering conditions, such as DC/AC power, Ar/O2 gas flow rate and deposition time were optimized for the enhanced performance of ECDs. The cyclic voltammetry was performed using a potentiostat with a standard three-electrode configuration. The WO3 and NiO films were deposited on ITO glasses served as the working electrodes, respectively. Pt was used as the counter electrode, Ag/AgCl was the reference electrode and the electrolyte was 1M LiPF6/PC. The transmittance spectrum of as prepared and after colored ECDs was characterized by a UV/VIS/NIR spectrophotometer. |
| 저자 |
Seung Ho Han1, So Hee Kang2, Sang Jin Lee3, Hyeongkeun Kim1, Dae Ho Yoon2, Sahn Nahm3, Woo Seok Yang1
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| 소속 |
1Korea Electronics Technology Institute, 2Sungkyunkwan Univ., 3Korea Univ. |
| 키워드 |
Solid-State Electrochromic; Inorganic Materials; Magnetron Sputtering
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| E-Mail |
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