Lee, Soyoung Yoo, Gang Yeol Kim, Byungwoo Kim, Min Kyu Kim, Changwook Park, Sang Yeun Yoon, Hee Chang Kim, Woong Min, Byoung Koun Do, Young Rag 2024-01-19T20:32:03Z 2024-01-19T20:32:03Z 2021-09-02 2019-03-13 1944-8244 https://pubs.kist.re.kr/handle/201004/120214 Colorful Cu(In,Ga)(S,Se)(2) (CIGSSe) thin-film solar cells were achieved by integrating a narrow-bandwidth stopband filter (NBSF) on a CIGSSe cell. The full range of visible color of NBSF could be realized by depositing one-dimensional nano-multilayers of alternating high-index (Al2O3) and low-index (SiO2) films while controlling the thickness of each layer and the number of stacked layers. Particularly, high-purity red, green, and blue (RGB) colors were generated on black CIGSSe cells with minimal harvest efficiency drop, showing power conversion efficiency (PCE) losses for the red and green CIGSSe cells of 4.2 and 1.2%, respectively, with no reduction in the PCE of the blue CIGSSe cell. The minimal drop in the harvest efficiency was attributed to the antireflection effect of the NBSF and the low overlap between the reflectance spectrum of NBSFs with a narrow stopband and the absorption spectrum of CIGSSe. The esthetic value could be further enhanced through the color variation of the RGB NBSF with viewing angle, so-called pearl-like colors. The synergetic effect of minimal efficiency loss, full color realization, and the pearl-like color change of the newly developed NBSFs can make CIGSSe cells applicable to building-integrated photovoltaics. English American Chemical Society POWER-CONVERSION EFFICIENCY PHOTONIC CRYSTALS ENERGY-STORAGE WHITE-LIGHT LAYER MANAGEMENT WINDOW CHALCOPYRITE PHOSPHOR RGB-Colored Cu(In,Ga)(S,Se)(2) Thin-Film Solar Cells with Minimal Efficiency Loss Using Narrow-Bandwidth Stopband Nano-Multilayered Filters Article 10.1021/acsami.8b21853 1 ACS Applied Materials & Interfaces, v.11, no.10, pp.9994 - 10003 ACS Applied Materials & Interfaces 11 10 9994 10003 scie scopus 000461538000038 2-s2.0-85062886405 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science Article POWER-CONVERSION EFFICIENCY PHOTONIC CRYSTALS ENERGY-STORAGE WHITE-LIGHT LAYER MANAGEMENT WINDOW CHALCOPYRITE PHOSPHOR CIGSSe solar cells colorful solar cells narrow-bandwidth stopband filter building-integrated photovoltaics solution process