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Performance enhancement of perovskite solar cells with a modified TiO2 electron transport layer using Zn-based additives
Lv, Minghang1; Lv, Wei1; Fang, Xiang1; Sun, Peng1; Lin, Bencai1,2; Zhang, Shuai1,2; Xu, Xueqing4; Ding, Jianning1,2,3; Yuan, Ningyi1,2
2016
Source PublicationRSC ADVANCES
Volume6Issue:41Pages:35044-35050
AbstractPerovskite solar cells (PVSCs) have recently emerged as a very attractive option in film photovoltaics. Both solvent-engineering techniques and electron transport layer (ETL) properties are necessary for high-performance PVSCs. Herein, we report a one-step spin-coating approach for the preparation of uniform and dense perovskite layers, using a mixed solvent of dimethylacetamide (DMAC) and N-methyl-2-pyrrolidone (NMP) followed by exposure to toluene to induce crystallization. We also developed a simple and quantitative method to improve the traditional compact TiO2 ETL properties and device performance based on Zn precursor doping. The effect of Zn-doped TiO2 was investigated using atomic force microscopy, ultraviolet-visible spectra, photoluminescence, and open-circuit photovoltage decays. The results indicate that Zn-doped TiO2 provides a better interface between the ETL and perovskite layer than non-doped TiO2. Light Zn doping (2 vol%) was found to be the most effective additive, and the average power conversion efficiency improved from 13.61% to 15.25%.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c6ra01149g
WOS Subject ExtendedChemistry
WOS KeywordPLANAR HETEROJUNCTION ; HALIDE PEROVSKITES ; DEVICES
Indexed BySCI
Language英语
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000374049700114
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/11232
Collection中国科学院广州能源研究所
Affiliation1.Changzhou Univ, Jiangsu Collaborat Innovat Ctr Photovolta Sci & E, Sch Mat Sci & Engn, Changzhou 213164, Jiangsu, Peoples R China
2.Changzhou Univ, Jiangsu Prov Cultivat Base State Key Lab Photovol, Changzhou 213164, Jiangsu, Peoples R China
3.Jiangsu Univ, Micro Nano Sci & Technol Ctr, Zhenjiang 212013, Peoples R China
4.Chinese Acad Sci, Renewable Energy & Gas Hydrate Key Lab, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Lv, Minghang,Lv, Wei,Fang, Xiang,et al. Performance enhancement of perovskite solar cells with a modified TiO2 electron transport layer using Zn-based additives[J]. RSC ADVANCES,2016,6(41):35044-35050.
APA Lv, Minghang.,Lv, Wei.,Fang, Xiang.,Sun, Peng.,Lin, Bencai.,...&Yuan, Ningyi.(2016).Performance enhancement of perovskite solar cells with a modified TiO2 electron transport layer using Zn-based additives.RSC ADVANCES,6(41),35044-35050.
MLA Lv, Minghang,et al."Performance enhancement of perovskite solar cells with a modified TiO2 electron transport layer using Zn-based additives".RSC ADVANCES 6.41(2016):35044-35050.
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