https://scholars.lib.ntu.edu.tw/handle/123456789/575005
標題: | Barium doping effect on the photovoltaic performance and stability of MA<inf>0.4</inf>FA<inf>0.6</inf>Ba<inf>x</inf>Pb<inf>1-x</inf>I<inf>y</inf>Cl<inf>3-y</inf> perovskite solar cells | 作者: | Chan, S.-H. Wu, M.-C. Li, Y.-Y. Lee, K.-M. Chen, Y.-F. Su, W.-F. YANG-FANG CHEN |
關鍵字: | Barium dopant; In-situ GIWAXS; J-V hysteresis; Perovskite solar cell; Power conversion efficiency | 公開日期: | 2020 | 卷: | 521 | 起(迄)頁: | - | 來源出版物: | Applied Surface Science | 摘要: | Perovskite solar cells (PSCs) have earned widespread attention owing to its fast-growing power conversion efficiency (PCE). However, there are some challenges for this type of solar cells. The toxicity issue, current density-voltage (J-V) hysteresis, and uncertain stability hinder commercialization. In this study, we developed the PSCs with MA0.4FA0.6BaxPb1-xIyCl3-y film as active layer. The MA0.4FA0.6BaxPb1-xIyCl3-y film with various barium doping concentrations were fabricated by solvent engineering method. We investigate the surface morphology, crystal orientation, and optical property of various perovskite films. Furthermore, the in situ grazing-incidence wide-angle X-ray scattering (in-situ GIWAXS) is used to analyze the heating crystallization process of perovskite film. We discover that Ba can improve crystallinity and structural stability. For the optimal 5.0 mol% Ba replacement, the PCE of perovskite device is increased to 17.4%, the J-V hysteresis can be completely eliminated and the device demonstrates long-term stability. © 2020 |
URI: | https://www.scopus.com/inward/record.url?eid=2-s2.0-85089200566&partnerID=40&md5=0498c2d087a0992e54560b9ededf7894 https://scholars.lib.ntu.edu.tw/handle/123456789/575005 |
DOI: | 10.1016/j.apsusc.2020.146451 | SDG/關鍵字: | Barium; Barium compounds; Chlorine compounds; Crystal orientation; Crystallinity; Hysteresis; Lead compounds; Morphology; Optical properties; Perovskite; Photovoltaic effects; Semiconductor doping; Solar power generation; Stability; Surface morphology; X ray scattering; Crystallization process; Grazing incidence; Long term stability; Perovskite films; Photovoltaic performance; Power conversion efficiencies; Solvent engineering; Structural stabilities; Perovskite solar cells |
顯示於: | 物理學系 |
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