Pyrolysis preparation of WO3 thin films using ammonium metatungstate DMF/water solution for efficient compact layers in planar perovskite solar cells
Pyrolysis preparation of WO3 thin films using ammonium metatungstate DMF/water solution for efficient compact layers in planar perovskite solar cells
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使用偏钨酸铵 DMF/水溶液热解制备 WO3 薄膜，以实现平面钙钛矿太阳能电池中的高效致密层
DOI：
10.1088/1674-4926/37/3/033002
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发表时间：
2016
影响因子：
5.1
通讯作者：
Mao Wang
中科院分区：
文献类型：
--
作者：
Jincheng Zhang;Chengwu Shi;Junjun Chen;Chao Ying;Ni Wu;Mao Wang
首次以偏钨酸铵((NH4)6H2W12O40)DMF/水溶液为原料，采用旋涂-热解法制备了WO_3薄膜，并成功地将其作为平面钙钛矿太阳电池的致密层。系统研究了WO_3薄膜厚度和CH3NH3PbI_3薄膜异丙醇漂洗处理对相应的钙钛矿型太阳电池光伏性能的影响。结果表明，62 nm厚WO_3致密层的钙钛矿型太阳能电池的光电转换效率为5.72%，短路光电流密度为17.39 mA/cm2，开路电压为0.58V，填充因子为0.57。异丙醇漂洗使光电转换效率从5.72%提高到7.04%。
The tungsten trioxide (WO3) thin films were firstly prepared by spin-coating-pyrolysis methods using the ammonium metatungstate ((NH4)6H2W12O40) DMF/water solution, and successfully applied as the efficient compact layers for the planar perovskite solar cells. The influence of the WO3 film thickness and the rinsing treatment of CH3NH3PbI3 thin film with isopropanol on the photovoltaic performance of the corresponding perovskite solar cells was systematically investigated. The results revealed that the perovskite solar cell with a 62 nm thick WO3 compact layer achieved a photoelectric conversion efficiency of 5.72%, with a short circuit photocurrent density of 17.39 mA/cm2, an open circuit voltage of 0.58 V and a fill factor of 0.57. The photoelectric conversion efficiency was improved from 5.72% to 7.04% by the isopropanol rinsing treatment.
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