CH_3NH_3Cd_(0.875)Pb_(0.125)I_3 perovskite as potential photovoltaic materials
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- 英文论文题名：CH_3NH_3Cd_(0.875)Pb_(0.125)I_3 perovskite as potential photovoltaic materials
- 论文作者：Yuandi Zhang ; Jing Feng
- 英文论文作者：Yuandi Zhang ; Jing Feng ; City College ; Kunming University of Science and Technology ; Faculty of Materials Science and Engineering ; Kunming University of Science and Technology
- 年：2017
- 作者机构：City College, Kunming University of Science and Technology;Faculty of Materials Science and Engineering, Kunming University of Science and Technology;
- 英文论文关键词：hybrid organic-inorganic perovskite ; solar cell ; first-principle calculation
- 会议召开时间：2017-05-27
- 会议录名称：第四届新型太阳能电池学术研讨会论文集
- 英文会议录名称：Abstract Book of the 4th Conference on New Generation Solar Cells
- 语种：英文
- 分类号：TB34
- 学会代码：ZKYQ
- 会议名称：第四届新型太阳能电池学术研讨会
- 会议地点：中国北京
- 主办单位：中国可再生能源学会光化学专业委员会
- 学会名称：中国科学院物理研究所清洁能源实验室
- 页数：1
- 文件大小：481k
- 原文格式：D
- 会议级别：全国
摘要
The band structure, electronic and optical properties of the perovskite CH_3NH_3Cd_xPb_(1-x)I_3 are predicted using density functional theory.When Cd content is not over Pb content, the band gap of CH_3NH_3Cd_xPb_(1-x)I_3 is larger than that of CH_3NH_3PbI_3, and the smallest band gap appears in CH_3NH_3Cd_(0.875)Pb_(0.125)I_3 compound.In the wavelength range of 500-800 nm, the optical absorption coefficients of three kinds of composition CH_3NH_3Cd_xPb_(1-x)I_3(x=5,6,7) are much larger than those of CH_3NH_3PbI_3.Compared to CH_3NH_3PbI_3, the absorption coefficients of CH_3NH_3Cd_(0.875)Pb_(0.125)I_3 increase averagely 3.54 times in the visible light spectrum and the latter can absorb much more solar energy in infrared range than the former.The CH_3NH_3Cd_(0.875)Pb_(0.125)I_3 compound is exceptional candidates of photovoltaic materials.
The band structure, electronic and optical properties of the perovskite CH_3NH_3Cd_xPb_(1-x)I_3 are predicted using density functional theory.When Cd content is not over Pb content, the band gap of CH_3NH_3Cd_xPb_(1-x)I_3 is larger than that of CH_3NH_3PbI_3, and the smallest band gap appears in CH_3NH_3Cd_(0.875)Pb_(0.125)I_3 compound.In the wavelength range of 500-800 nm, the optical absorption coefficients of three kinds of composition CH_3NH_3Cd_xPb_(1-x)I_3(x=5,6,7) are much larger than those of CH_3NH_3PbI_3.Compared to CH_3NH_3PbI_3, the absorption coefficients of CH_3NH_3Cd_(0.875)Pb_(0.125)I_3 increase averagely 3.54 times in the visible light spectrum and the latter can absorb much more solar energy in infrared range than the former.The CH_3NH_3Cd_(0.875)Pb_(0.125)I_3 compound is exceptional candidates of photovoltaic materials.
The band structure, electronic and optical properties of the perovskite CH_3NH_3Cd_xPb_(1-x)I_3 are predicted using density functional theory.When Cd content is not over Pb content, the band gap of CH_3NH_3Cd_xPb_(1-x)I_3 is larger than that of CH_3NH_3PbI_3, and the smallest band gap appears in CH_3NH_3Cd_(0.875)Pb_(0.125)I_3 compound.In the wavelength range of 500-800 nm, the optical absorption coefficients of three kinds of composition CH_3NH_3Cd_xPb_(1-x)I_3(x=5,6,7) are much larger than those of CH_3NH_3PbI_3.Compared to CH_3NH_3PbI_3, the absorption coefficients of CH_3NH_3Cd_(0.875)Pb_(0.125)I_3 increase averagely 3.54 times in the visible light spectrum and the latter can absorb much more solar energy in infrared range than the former.The CH_3NH_3Cd_(0.875)Pb_(0.125)I_3 compound is exceptional candidates of photovoltaic materials.
引文
[1]Yuandi Zhang,Jing Feng,AIP Advances,2016,6,115208