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含添加剂的二步溶液法制备钙钛矿太阳能电池
Perovskite Solar Cells Prepared by Two-step Solution Method with Additive
- 发光学报 2019年40卷第6期 页码：766-772
- 作者机构：
广东工业大学 材料与能源学院, 广东 广州 510006
- 作者简介：
- 基金信息：广东省科技计划项目（2016A010104020）资助()
DOI：10.3788/fgxb20194006.0766
中图分类号： TM914.4纸质出版日期：2019-6-5，
网络出版日期：2018-10-31，
收稿日期：2018-6-23，
修回日期：2018-10-18，
扫 描 看 全 文
郑海松, 魏爱香, 刘俊等. 含添加剂的二步溶液法制备钙钛矿太阳能电池[J]. 发光学报, 2019,40(6): 766-772
ZHENG Hai-song, WEI Ai-xiang, LIU Jun etc. Perovskite Solar Cells Prepared by Two-step Solution Method with Additive[J]. Chinese Journal of Luminescence, 2019,40(6): 766-772
郑海松, 魏爱香, 刘俊等. 含添加剂的二步溶液法制备钙钛矿太阳能电池[J]. 发光学报, 2019,40(6): 766-772 DOI： 10.3788/fgxb20194006.0766.
ZHENG Hai-song, WEI Ai-xiang, LIU Jun etc. Perovskite Solar Cells Prepared by Two-step Solution Method with Additive[J]. Chinese Journal of Luminescence, 2019,40(6): 766-772 DOI： 10.3788/fgxb20194006.0766.
摘要
采用含二甲基亚砜（DMSO）添加剂的二步溶液法制备高质量CH
3
NH
3
PbI
3
吸收层，并制备了结构为FTO/TiO
2
致密层/TiO
2
介孔层/CH
3
NH
3
PbI
3
吸收层/碳电极的碳基无空穴传输层的钙钛矿太阳能电池（PSCs）。研究了PbI
2
薄膜分别在相同浓度的MAI/IPA溶液中浸泡不同时间，以及在不同浓度的MAI/IPA溶液中浸泡相同时间对CH
3
NH
3
PbI
3
薄膜的形貌、结构以及对PSCs光伏性能的影响规律。结果表明，在PbI
2
/DMF溶液中添加DMSO之后使制备的PbI
2
薄膜呈多孔疏松状态，有利于MAI/IPA溶液渗入PbI
2
薄膜内部，缩短PbI
2
完全转换成CH
3
NH
3
PbI
3
的时间；当浸泡时间为40 min时，电池的光伏性能最佳，其开路电压为0.82 V，短路电流密度为21.21 mA/cm
2
，填充因子为0.49，光电转化效率为8.61%。但是当浸泡时间过长，CH
3
NH
3
PbI
3
薄膜表面会出现大晶粒，导致电池的光伏性能变差。而在相同的浸泡时间下，MAI/IPA溶液的浓度则会显著影响PbI
2
转化成CH
3
NH
3
PbI
3
的速度，MAI/IPA溶液的浓度越高，PbI
2
完全转化成CH
3
NH
3
PbI
3
的速度越快。
Abstract
In this paper
a two-step solution method including dimethyl sulfoxide(DMSO) as additive is used to prepare a high-quality CH
3
NH
3
PbI
3
absorb layer for carbon-based hole conductor-free perovskite solar cells(PSCs)
which have the structure consisting of FTO glass/compact TiO
2
/mesoporous TiO
2
/CH
3
NH
3
PbI
3
/carbon electrodes. The effects of dipping time and dipping concentration on the photovoltaic performance of PSCs are studied. Introducing some DMSO in the PbI
2
/DMF solutions results in formation of porous and loose PbI
2
films
which shortens the time required for the complete conversion of PbI
2
to perovskite. When the dipping time is 40 min
the PSCs have the best photovoltaic performance with the open circuit voltage of 0.82 V
the short-circuit current density of 21.21 mA/cm
2
the fill factor of 0.49
and the photoelectric conversion efficiency of 8.61%. However
when the dipping time is too long
the large grains will appear on the surface of the CH
3
NH
3
PbI
3
absorb layer
resulting in the poor photovoltaic performance of PSCs. In addition
the concentration of MAI/IPA solution will significantly affect the rate of the conversion of PbI
2
to CH
3
NH
3
PbI
3
. The higher the concentration of MAI/IPA solution is
the faster the rate of the conversion of PbI
2
to CH
3
NH
3
PbI
3
is.
关键词
钙钛矿太阳能电池二步溶液法浸泡时间浸泡浓度光伏性能
Keywords
perovskite solar celltwo-step solution methoddipping timedipping concentrationphotovoltaic performance
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