大尺寸晶粒高质量钙钛矿薄膜的制备与光伏特性（英文）
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- 论文作者：田建军 ; 李波 ; 费成斌 ; 李梦洁 ; 曹国忠
- 年：2017
- 作者机构：北京科技大学;
- 论文关键词：钙钛矿太阳能电池 ; 晶粒尺寸 ; 电荷收集效率
- 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：TM914.4
- 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：957k
- 原文格式：D
- 会议级别：全国
摘要
Organic–inorganic halide CH_3NH_3PbI_3(MAPbI3) perovskite solar cells(PSCs) have attracted intensive attention due to their high power conversion efficiency and low fabrication cost.However, MAPbI3 is known to be very sensitive to humidity, and the intrinsic long-term stability of the MAPbI_3 film remains a critical challenge.2-Aminoethanethiol(2-AET) was used as a ligand to bridge the organic compound(MAI) and inorganic compound(PbI_2), which restricts the fast growth of PbI_2 to realize the synchronous growth environment of MAI and PbI_2 crystals, resulting in the formation of a compact MAPbI_3 film with polygonal grains.Due to the compact(PbI_2)–2-AET–(MAI) molecule barrier layers in the MAPbI_3 structure, the resulting perovskite films showed excellent intrinsic water-resistance, with the MAPbI_3 perovskite crystal structure retained for a long time(>10 minutes) after immersion in water.This work makes a step towards obtaining long-term stable MAPbI_3 perovskite devices.In addition, thiourea was introduced into the MAPbI_3 precursor for monolithic grains, the perovskite solar cells performed an impressive 18.46% power conversion efficiency(PCE) and average PCE of 17.57±1.03%.Recently, the average grain size of MAPbI_3 film about 5 mm was prepared.The PCE of the solar cell based on the film was more than 19%.
Organic–inorganic halide CH_3NH_3PbI_3(MAPbI3) perovskite solar cells(PSCs) have attracted intensive attention due to their high power conversion efficiency and low fabrication cost.However, MAPbI3 is known to be very sensitive to humidity, and the intrinsic long-term stability of the MAPbI_3 film remains a critical challenge.2-Aminoethanethiol(2-AET) was used as a ligand to bridge the organic compound(MAI) and inorganic compound(PbI_2), which restricts the fast growth of PbI_2 to realize the synchronous growth environment of MAI and PbI_2 crystals, resulting in the formation of a compact MAPbI_3 film with polygonal grains.Due to the compact(PbI_2)–2-AET–(MAI) molecule barrier layers in the MAPbI_3 structure, the resulting perovskite films showed excellent intrinsic water-resistance, with the MAPbI_3 perovskite crystal structure retained for a long time(>10 minutes) after immersion in water.This work makes a step towards obtaining long-term stable MAPbI_3 perovskite devices.In addition, thiourea was introduced into the MAPbI_3 precursor for monolithic grains, the perovskite solar cells performed an impressive 18.46% power conversion efficiency(PCE) and average PCE of 17.57±1.03%.Recently, the average grain size of MAPbI_3 film about 5 mm was prepared.The PCE of the solar cell based on the film was more than 19%.
Organic–inorganic halide CH_3NH_3PbI_3(MAPbI3) perovskite solar cells(PSCs) have attracted intensive attention due to their high power conversion efficiency and low fabrication cost.However, MAPbI3 is known to be very sensitive to humidity, and the intrinsic long-term stability of the MAPbI_3 film remains a critical challenge.2-Aminoethanethiol(2-AET) was used as a ligand to bridge the organic compound(MAI) and inorganic compound(PbI_2), which restricts the fast growth of PbI_2 to realize the synchronous growth environment of MAI and PbI_2 crystals, resulting in the formation of a compact MAPbI_3 film with polygonal grains.Due to the compact(PbI_2)–2-AET–(MAI) molecule barrier layers in the MAPbI_3 structure, the resulting perovskite films showed excellent intrinsic water-resistance, with the MAPbI_3 perovskite crystal structure retained for a long time(>10 minutes) after immersion in water.This work makes a step towards obtaining long-term stable MAPbI_3 perovskite devices.In addition, thiourea was introduced into the MAPbI_3 precursor for monolithic grains, the perovskite solar cells performed an impressive 18.46% power conversion efficiency(PCE) and average PCE of 17.57±1.03%.Recently, the average grain size of MAPbI_3 film about 5 mm was prepared.The PCE of the solar cell based on the film was more than 19%.
引文
[1]Chengbin Fei,Haoyu Fu,Rong Zhang,Bo Li,Lixue Guo,Jianjun Tian*,Guozhong Cao*.Efficient and stable perovskite solar cells based on monolithic CH3NH3Pb I3 grains.Adv.Energy Mater.,2017,1602017
[2]Bo Li,Chengbin Fei,Kaibo Zheng,Xuanhui Qu,T?nu Pullerits,Guozhong Cao,Jianjun Tian*.Water-resistant CH3NH3Pb I3 perovskite films via chelating.J.Mater.Chem.A,2016,4,17018-17024.
[2]Bo Li,Chengbin Fei,Kaibo Zheng,Xuanhui Qu,T?nu Pullerits,Guozhong Cao,Jianjun Tian*.Water-resistant CH3NH3Pb I3 perovskite films via chelating.J.Mater.Chem.A,2016,4,17018-17024.