Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Perovskite solar cells based on bottom-fused TiO2 nanocones | |
Peng, Guiming1,2,3; Wu, Jiamin2; Wu, Suqin1; Xu, Xueqing3 ; Ellis, James E.4; Xu, Gang3; Star, Alexander4; Gao, Di2
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| 2016 | |
| Source Publication | JOURNAL OF MATERIALS CHEMISTRY A
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| Volume | 4Issue:4Pages:1520-1530 |
| Abstract | Compared to the fast electron transport in perovskite and rapid electron injection from perovskite to TiO2 nanoparticle scaffold, the slower electron transport rate in mesoporous TiO2 is reported to be a hindrance factor for power conversion efficiency. One-dimensional nanomaterials are believed to show faster carrier transport rate. In this paper, vertically aligned one-dimensional TiO2 nanocones on transparent conducting oxide were synthesized and utilized as a promising scaffold for perovskite solar cells. A simple concentration-dependent CH3NH3PbI3 seeding spin-coating method was developed to effectively improve the surface coverage at low cost. The resultant perovskite solar cells realized an average power conversion efficiency up to 11%, which is higher than that of rectangular TiO2 nanorods-based device. Besides the faster electron transport rate and slower recombination in such one-dimensional nanostructures, we attribute the superior performance of the nanocone-based device to the fact TiO2 nanocone arrays allow more CH3NH3PbI3 to deposit. By scaling up the nanocone-based devices to 1.2 cm(2), they yielded a decent average power conversion efficiency of similar to 6%. The combination of TiO2 nanocones with perovskite paves a way to take full advantage of one-dimensional nanomaterials and organic-inorganic perovskites for photovoltaic applications. |
| Subtype | Article |
| WOS Headings | Science & Technology ; Physical Sciences ; Technology |
| DOI | 10.1039/c5ta08375c |
| WOS Subject Extended | Chemistry ; Energy & Fuels ; Materials Science |
| WOS Keyword | ORGANOMETAL HALIDE PEROVSKITES ; PLANAR HETEROJUNCTION ; SEQUENTIAL DEPOSITION ; NANOWIRE ARRAYS ; CHARGE-TRANSFER ; EFFICIENT ; CH3NH3PBI3 ; SEMICONDUCTOR ; PERFORMANCE ; LIGHT |
| Indexed By | SCI |
| Language | 英语 |
| WOS Subject | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000368837800045 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/11008 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 1.Jiangxi Univ Sci & Technol, Sch Met & Chem Engn, Ganzhou 341000, Jiangxi, Peoples R China 2.Univ Pittsburgh, Dept Chem & Petr Engn, Pittsburgh, PA 15261 USA 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 4.Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Peng, Guiming,Wu, Jiamin,Wu, Suqin,et al. Perovskite solar cells based on bottom-fused TiO2 nanocones[J]. JOURNAL OF MATERIALS CHEMISTRY A,2016,4(4):1520-1530. |
| APA | Peng, Guiming.,Wu, Jiamin.,Wu, Suqin.,Xu, Xueqing.,Ellis, James E..,...&Gao, Di.(2016).Perovskite solar cells based on bottom-fused TiO2 nanocones.JOURNAL OF MATERIALS CHEMISTRY A,4(4),1520-1530. |
| MLA | Peng, Guiming,et al."Perovskite solar cells based on bottom-fused TiO2 nanocones".JOURNAL OF MATERIALS CHEMISTRY A 4.4(2016):1520-1530. |
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