화학공학소재연구정보센터
학회 한국재료학회
학술대회 2008년 봄 (05/22 ~ 05/23, 상록리조트)
권호 14권 1호
발표분야 에너지환경/생체재료
제목 MgF2/ZnS double-layer antireflection coatings for high-efficiency Ⅲ-Ⅴ solar cell
초록 Antireflection coatings have been studied in various optical fields for increasing transmittance. In the case of solar cell, while zero reflectance can be obtained from a single layer antireflection coating only at one wavelength, it can be achieved by two-layer antireflection coatings at wider band wavelength, leading to higher efficiency. In this work, we report the effect of processing conditions on the MgF2/ZnS double-layer antireflection coatings. MgF2/ZnS films were deposited on the GaAs substrate by rf magnetron sputter. Refractive indices of each layer were measured by ellipsometry. Double-layer antireflection coating can be estimated using a refractive index and film thickness. In accordance with the prediction, much wider band could be obtained from present double layer coatings. Detailed data will be presented for a discussion.
저자 Sung-Mok Jung1, Jin-Seok Yang2, Seong-Il Kim3, Young-Hwan Kim4, Sang-Im Yoo3
소속 1Department of Materials Science and Engineering, 2Seoul National Univ., 3Nano Device Research Center, 4Korea Institute of Science and Technology
키워드 Antireflection coating; MgF2/ZnS film; sputter; Refractive index
E-Mail youngkim@kist.re.kr