유 무기 페로브스카이트 태양전지의 열화와 안정성

• Published in: Current Photovoltaic Research Vol. 4; no. 2; pp. 68 - 79
• Main Authors: 조경진(Kyungjin Cho), 김성탁(Seongtak Kim), 배수현(Soohyun Bae), 정태원(Taewon Chung), 이상원(Sang-won Lee), 이경동(Kyung Dong Lee), 이승훈(Seunghun Lee), 권구한(Guhan Kwon), 안세원(Seh-Won Ahn), 이헌민(Heon-Min Lee), 고민재(Min Jae Ko), 강윤묵(Yoonmook Kang), 이해석(Hae-seok Lee), 김동환(Donghwan Kim)
• Format: Journal Article
• Language: Korean
• Published: 한국태양광발전학회 2016
• Subjects: Degradation; Perovskite solar cell; Temperature; Stability; Moisture; Voltage; UV light
• ISSN: 2288-3274; 2508-125X

The power conversion efficiency of perovskite solar cells has remarkably increased from 3.81% to 22.1% in the past 6 years. Perovskite solar cells, which are based on the perovskite crystal structure, are fabricated using organic-inorganic hybrid materials. The advantages of these solar cells are their low cost and simple fabrication procedure. Also, they have a band gap of about 1.6 eV and effectively absorb light in the visible region. For the commercialization of perovskite solar cells in the field of photovoltaics, the issue of their long term stability cannot be overlooked. Although the development of perovskite solar cells is unprecedented, their main drawback is the degradation of the perovskite structure by moisture. This degradation is accelerated by exposure to UV light, temperature, and external bias. This paper reviews the aforesaid reasons for perovskite solar cell degradation. We also discuss the research directions that can lead to the development of perovskite solar cells with high stability.