https://scholars.lib.ntu.edu.tw/handle/123456789/402180
Title: | Improved efficiency of perovskite photovoltaics based on Ca-doped methylammonium lead halide | Authors: | Wu, M.-C. Lin, T.-H. Chan, S.-H. Su, W.-F. WEI-FANG SU |
Keywords: | Calcium; Methylammonium lead halide; Morphology; Perovskite solar cell | Issue Date: | 2017 | Journal Volume: | 80 | Start page/Pages: | 695-700 | Source: | Journal of the Taiwan Institute of Chemical Engineers | Abstract: | Hybrid lead halide perovskite structured materials have created enormous expectations for low-cost and high-performance optoelectronic devices. The light-harvesting active layer of perovskite solar cell consists of hybrid organic-inorganic lead halide-based material. In this study, we successfully fabricated the perovskite photovoltaics with partial substitution of the lead cation (Pb2+) with calcium ion (Ca2+). The incorporation of Ca2+ into the original structure was analyzed to observe the doping effect on the crystalline structure and the optical properties. Moreover, UV–vis spectra showed the decreased bandgap with ascending the dopants Ca2+ amount. 1.0 mol% Ca-doped perovskite film has the lower emission energy, and it shows the low recombination behavior. After optimizing the perovskite solar cells, the Voc is increased from 0.93 to 0.98 V, the Jsc is increased from 17.4 to 19.1 mA/cm2 and the power conversion efficiency is enhanced from 10.7 to 12.9% by using 1.0 mol% Ca-doped perovskite material. © 2017 Taiwan Institute of Chemical Engineers |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-85029615989&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/402180 |
DOI: | 10.1016/j.jtice.2017.09.004 | SDG/Keyword: | Calcium; Doping (additives); Hybrid materials; Lead; Morphology; Optical properties; Optoelectronic devices; Perovskite; Semiconductor doping; Solar cells; Crystalline structure; Halide perovskites; Hybrid organic-inorganic; Methylammonium lead halide; Original structures; Partial substitution; Power conversion efficiencies; Structured materials; Perovskite solar cells |
Appears in Collections: | 材料科學與工程學系 |
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