Influence of N ‐Butyldithiocarbamic Acid Content on the Properties of Sb 2 S 3 Sensitized TiO 2 Nanorod Arrays and Photovoltaic Performance of the Corresponding Solar Cells
Influence of N ‐Butyldithiocarbamic Acid Content on the Properties of Sb 2 S 3 Sensitized TiO 2 Nanorod Arrays and Photovoltaic Performance of the Corresponding Solar Cells
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DOI：
10.1002/slct.202100840
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发表时间：
2021-07
期刊：
影响因子：
2.1
通讯作者：
Chao Ying;Fuling Guo;X. Cui;Xun Sun;Chengwu Shi
中科院分区：
文献类型：
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作者：
Chao Ying;Fuling Guo;X. Cui;Xun Sun;Chengwu Shi
本文以Sb 2S 3为前驱体，在N-丁基二硫代氨基甲酸-乙醇（Sb-BDCA）复合溶液中，采用旋涂法制备了Sb 2S 3敏化的TiO 2纳米棒阵列。系统研究了前驱体溶液中N-丁基二硫代氨基甲酸与Sb ~（3+）的摩尔比（BDCA-6、BDCA-8和BDCA-10）对Sb_2S_3敏化TiO_2纳米棒阵列晶相、光吸收和微观结构的影响。通过调节BDCA与Sb ~（3+）的摩尔比，获得了Sb ~（2 1 1）面的上级择优取向。结果表明，用于BDCA-8的Sb 2S 3敏化的TiO 2纳米棒阵列显示出最好的导电性，并且相应的太阳能电池实现了5.43%的最佳PCE，开路电压（Voc）为0.53 V，短路光电流密度（Jsc）为17.19 mA cm−2，填充因子（FF）为59.21%。用月桂酸修饰Sb 2S 3敏化的TiO 2纳米棒阵列后，相应太阳能电池的PCE从5.43%提高到5.77%。
In this paper, Sb2S3-sensitized TiO2 nanorod arrays are successfully prepared by the spin-coated and then pyrolysis (denoted as spin-pyrolysis) of Sb2S3 precursor solution in N-Butyldithiocarbamic acid-ethanol (Sb-BDCA complex solution). The influence of precursor solution content with different mole ratios of N-Butyldithiocarbamic acid to Sb3+ (6, 8 and 10, denoted as BDCA-6, BDCA-8 and BDCA-10, respectively) on the crystalline phase, optical absorption and microstructure of the Sb2S3-sensitized TiO2 nanorod arrays have been investigated systematically. By adjusting the BDCA to Sb3+ mole ratios, the superior preferred orientation of the (211) plane for Sb2S3 was obtained. The results revealed that the Sb2S3-sensitized TiO2 nanorod arrays for BDCA-8 showed the best conductivity and the corresponding solar cell achieved the best PCE of 5.43 % with the open-circuit voltage (Voc) of 0.53 V, short-circuit photocurrent density (Jsc) of 17.19 mA cm−2 and fill factor (FF) of 59.21 %. After the Sb2S3 sensitized TiO2 nanorod array was modified by lauric acid, the PCE of the corresponding solar cells increased from 5.43 % to 5.77 %.