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ZnO-based inverted hybrid solar cells using P3HT and spiro-OMeTAD with hole transporting property: Layered or blended. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.05.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Influence of organic interface modification layer on the photoelectric properties of ZnO-based hybrid solar cells. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.06.042] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ren X, Sangle A, Zhang S, Yuan S, Zhao Y, Shi L, Hoye RLZ, Cho S, Li D, MacManus-Driscoll JL. Photoelectrochemical water splitting strongly enhanced in fast-grown ZnO nanotree and nanocluster structures. JOURNAL OF MATERIALS CHEMISTRY. A 2016; 4:10203-10211. [PMID: 27774147 PMCID: PMC5059783 DOI: 10.1039/c6ta02788a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 05/31/2016] [Indexed: 05/31/2023]
Abstract
We demonstrate selective growth of ZnO branched nanostructures: from nanorod clusters (with branches parallel to parent rods) to nanotrees (with branches perpendicular to parent rods). The growth of these structures was realized using a three-step approach: electrodeposition of nanorods (NRs), followed by the sputtering of ZnO seed layers, followed by the growth of branched arms using hydrothermal growth. The density, size and direction of the branches were tailored by tuning the deposition parameters. To our knowledge, this is the first report of control of branch direction. The photoelectrochemical (PEC) performance of the ZnO nanostructures follows the order: nanotrees (NTs) > nanorod clusters (NCs) > parent NRs. The NT structure with the best PEC performance also possesses the shortest fabrication period which had never been reported before. The photocurrent of the NT and NC photoelectrodes is 0.67 and 0.56 mA cm-2 at 1 V vs. Ag/AgCl, respectively, an enhancement of 139% and 100% when compared to the ZnO NR structures. The key reason for the improved performance is shown to be the very large surface-to-volume ratios in the branched nanostructures, which gives rise to enhanced light absorption, improved charge transfer across the nanostructure/electrolyte interfaces to the electrolyte and efficient charge transport within the material.
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Affiliation(s)
- Xin Ren
- Research Center for Nanoscience and Technology , Shanghai University , 99 Shangda Road , Shanghai 200444 , China . ; ; Tel: +86 21 66137197
| | - Abhijeet Sangle
- Department of Materials Science and Metallurgy , University of Cambridge , 27 Charles Babbage Road , Cambridge CB3 0FS , UK . ; ; Tel: +44 (0)1223334468
| | - Siyuan Zhang
- Department of Materials Science and Metallurgy , University of Cambridge , 27 Charles Babbage Road , Cambridge CB3 0FS , UK . ; ; Tel: +44 (0)1223334468
| | - Shuai Yuan
- Research Center for Nanoscience and Technology , Shanghai University , 99 Shangda Road , Shanghai 200444 , China . ; ; Tel: +86 21 66137197
| | - Yin Zhao
- Research Center for Nanoscience and Technology , Shanghai University , 99 Shangda Road , Shanghai 200444 , China . ; ; Tel: +86 21 66137197
| | - Liyi Shi
- Research Center for Nanoscience and Technology , Shanghai University , 99 Shangda Road , Shanghai 200444 , China . ; ; Tel: +86 21 66137197
| | - Robert L Z Hoye
- Department of Materials Science and Metallurgy , University of Cambridge , 27 Charles Babbage Road , Cambridge CB3 0FS , UK . ; ; Tel: +44 (0)1223334468
| | - Seungho Cho
- Department of Materials Science and Metallurgy , University of Cambridge , 27 Charles Babbage Road , Cambridge CB3 0FS , UK . ; ; Tel: +44 (0)1223334468
| | - Dongdong Li
- Shanghai Advanced Research Institute , Chinese Academy of Sciences , 99 Haike Road, Zhangjiang Hi-Tech Park , Shanghai 201210 , China
| | - Judith L MacManus-Driscoll
- Department of Materials Science and Metallurgy , University of Cambridge , 27 Charles Babbage Road , Cambridge CB3 0FS , UK . ; ; Tel: +44 (0)1223334468
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