https://scholars.lib.ntu.edu.tw/handle/123456789/402174
Title: | The effect of strontium and barium doping on perovskite-structured energy materials for photovoltaic applications | Authors: | Wu, M.-C. Chen, W.-C. Chan, S.-H. Su, W.-F. WEI-FANG SU |
Keywords: | Barium; Charge carrier dynamics; Perovskite solar cells; Power conversion efficiency; Strontium | Issue Date: | 2018 | Journal Volume: | 429 | Start page/Pages: | 9-15 | Source: | Applied Surface Science | Abstract: | Perovskite solar cell is a novel photovoltaic technology with the superior progress in efficiency and the simple solution processes. Develop lead-free or lead-reduced perovskite materials is a significant concern for high-performance perovskite solar cell. Among the alkaline earth metals, the Sr 2+ and Ba 2+ are suitable for Pb 2+ replacement in perovskite film due to fitting Goldschmidt's tolerance factor. In this study, we adopted Ba-doped and Sr-doped perovskite structured materials with different doping levels, including 1.0, 5.0, and 10.0 mol%, to prepare perovskite solar cells. Both Ba-doped and Sr-doped perovskite structured materials have a related tendency in absorption behavior and surface morphology. At 10.0 mol% doping level, the power conversion efficiency (PCE) of Sr-doped perovskite solar cells is only ∼0.5%, but the PCE of Ba-doped perovskite solar cells can be achieved to ∼9.7%. Ba-doped perovskite solar cells showed the acceptable photovoltaic characteristics than Sr-doped perovskite solar cells. Ba dopant can partially replace the amount of lead in the perovskite solar cells, and it could be a potential candidate in the field of lead-free or lead-reduced perovskite energy materials. © 2017 Elsevier B.V. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-85028713599&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/402174 |
DOI: | 10.1016/j.apsusc.2017.08.131 | SDG/Keyword: | Barium; Conversion efficiency; Perovskite; Perovskite solar cells; Photovoltaic effects; Semiconductor doping; Solar power generation; Strontium; Absorption behaviors; Charge carrier dynamics; Energy materials; Photovoltaic applications; Photovoltaic characteristics; Photovoltaic technology; Power conversion efficiencies; Structured materials; Solar cells |
Appears in Collections: | 材料科學與工程學系 |
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