UVO 처리에 따른 NiOx 박막 및 페로브스카이트 태양전지 셀 특성 변화

• Published in: Current Photovoltaic Research Vol. 12; no. 1; pp. 1 - 5
• Main Authors: 조수진(Sujin Cho), 황재근(Jae-Keun Hwang), 편도원(Dowon Pyun), 정석현(Seok Hyun Jeong), 이솔희(Solhee Lee), 이원규(Wonkyu Lee), 황지성(Ji-Seong Hwang), 최영호(Youngho Choe), 김동환(Donghwan Kim)
• Format: Journal Article
• Language: Korean
• Published: 한국태양광발전학회 2024
• Subjects: NiOx; Perovskite solar cell; UVO treatment
• ISSN: 2288-3274; 2508-125X

Perovskite solar cells have exhibited a remarkable increase in efficiency from an initial 3.8% to 26.1%, marking a significant advancement. However, challenges persist in the commercialization of perovskite solar cells due to their low stability with respect to humidity, light exposure, and temperature. Moreover, the instability of the organic charge transport layer underscores the need for exploring inorganic alternatives. In the manufacturing process of the perovskite solar cells' oxide charge transport layer, ultraviolet-ozone (UVO) treatment is commonly applied to enhance the wettability of the perovskite solution. The UVO treatment on metal oxides has proven effective in suppressing surface oxygen vacancies and removing surface organic contaminants. This study focused on the characterization of nickel oxide as the hole transport material in perovskite solar cells, specifically investigating the impact of UVO treatment on film properties. Through this analysis, changes induced by the UVO treatment were observed, and consequent alterations in the device characteristics were identified.