当前位置: X-MOL 学术J. Nanopart. Res. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Ultra-thin CdS buffer layer for efficient Sb2S3-sensitized TiO2 nanorod array solar cells using Sb-thiourea complex solution
Journal of Nanoparticle Research ( IF 2.1 ) Pub Date : 2021-08-26 , DOI: 10.1007/s11051-021-05321-2
Chao Ying 1 , Fuling Guo 1 , Liang Xu 1 , Kai Lv 1 , Chengwu Shi 1
Affiliation  

In this paper, the compact and ultra-thin CdS thin films with different spin cycles are deposited on the TiO2 nanorod arrays via spin-coated-assisted successive ionic layer adsorption and reaction method using Cd(NO3)2 solution in methanol and the Na2S solution in methanol/water (v/v, 95/5), and the Sb2S3 prepared by pyrolysis using SbCl3-thiourea complex solution in DMF. In the Sb2S3-sensitized solar cells, the compact and ultra-thin CdS thin films with suitable band gap and higher electron mobility can suppress the charge recombination, the electrons of the TiO2 conduction band, and the holes of the spiro-OMeTAD valence band, and it can also transport photogenerated electrons rapidly from Sb2S3 to TiO2. The thickness and microstructure of the CdS buffer layers can be adjusted by spin cycles and the influence of the thickness and microstructure of the CdS buffer layers on the photovoltaic property of the corresponding solar cell was systematically investigated. The Sb2S3-sensitized solar cells with 5 layers CdS thin film achieved the best photovoltaic conversion efficiency (PCE) of 5.71% along with the open-circuit voltage (Voc) of 0.53 V, short-circuit photocurrent density (Jsc) of 18.20 mA cm−2, fill factor (FF) of 58.99%, and the average PCE of 5.59 ± 0.08% with the Voc of 0.53 ± 0.01 V, Jsc of 17.72 ± 0.43 mA cm−2, and FF of 59.05 ± 0.65%.



中文翻译:

使用 Sb-硫脲复合溶液的高效 Sb2S3 敏化 TiO2 纳米棒阵列太阳能电池的超薄 CdS 缓冲层

本文采用Cd(NO 3 ) 2甲醇溶液和Cd(NO 3 ) 2溶液在TiO 2纳米棒阵列上通过旋涂辅助连续离子层吸附和反应方法,在TiO 2纳米棒阵列上沉积致密超薄的CdS薄膜。Na 2 S 的甲醇/水溶液 (v/v, 95/5),以及使用 SbCl 3 -硫脲复合物的 DMF 溶液通过热解制备的 Sb 2 S 3。在Sb 2 S 3敏化太阳能电池中,具有合适带隙和较高电子迁移率的致密超薄CdS薄膜可以抑制电荷复合,TiO 2的电子导带和-OMeTAD价带的空穴,它还可以将光生电子从Sb 2 S 3快速传输到TiO 2。CdS缓冲层的厚度和微观结构可以通过自旋循环进行调节,系统研究了CdS缓冲层的厚度和微观结构对相应太阳能电池光伏性能的影响。具有5层CdS薄膜的Sb 2 S 3敏化太阳能电池实现了5.71%的最佳光伏转换效率(PCE),开路电压(V oc)为0.53 V,短路光电流密度(Jsc ) 为 18.20 mA cm -2,填充因子 (FF) 为 58.99%,平均 PCE 为 5.59 ± 0.08%,V oc为 0.53 ± 0.01 V,J sc为 17.72 ± 0.43 mA cm -2和 FF 59.05 ± 0.65%。

更新日期:2021-08-27
down
wechat
bug