One-Step Fabrication of Unique Mesoporous NiO Hollow Sphere Film on FTO for High-Performance P-Type Dye-Sensitized Solar Cells
P-type dye sensitized solar cells (p-DSCs) deliver much lower overall efficiency than their inverse model, n-DSCs. However, they have fundamental and practical significance, in particular, their tandem structured solar cells with both p- and n-photoelectrodes could offer great potential to significa...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2016
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| Online Access: | https://hdl.handle.net/10356/81641 http://hdl.handle.net/10220/40869 |
| _version_ | 1826124462306623488 |
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| author | Yang, Hong Bin Liu, Bin Khoo, Si Yun Zhu, Lin Nan Guo, Chun Xian Dong, Yong Qiang Li, Chang Ming |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Yang, Hong Bin Liu, Bin Khoo, Si Yun Zhu, Lin Nan Guo, Chun Xian Dong, Yong Qiang Li, Chang Ming |
| author_sort | Yang, Hong Bin |
| collection | NTU |
| description | P-type dye sensitized solar cells (p-DSCs) deliver much lower overall efficiency than their inverse model, n-DSCs. However, they have fundamental and practical significance, in particular, their tandem structured solar cells with both p- and n-photoelectrodes could offer great potential to significantly improve the efficiency of existing solar cells. A facile and environmentally friendly method is developed to directly one-step grow hollow NiO spherical structures on fluorine-doped tin oxide (FTO) substrate, in which a Ni2+ and polymer complex spherical structure is self-constructed through a controlled solvent evaporation process, followed by calcination-converting to a unique NiO hollow sphere film. The prepared material is further used as a photocathode in p-type dye sensitized solar cells, resulting in 41% increase of an open-circuit voltage and 18% enhancement of power conversion efficiency than NiO nanoparticles photocathode. The improved performance can be ascribed to suppressed charge recombination at the photocathode/electrolyte interface. This template-free approach could be universally used to fabricate other nanostructured hollow spheres for a wide range of energy conversion applications such as electrochemical capacitors, chemical sensors, and electrochromic devices. |
| first_indexed | 2024-10-01T06:21:02Z |
| format | Journal Article |
| id | ntu-10356/81641 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:21:02Z |
| publishDate | 2016 |
| record_format | dspace |
| spelling | ntu-10356/816412020-03-07T11:35:26Z One-Step Fabrication of Unique Mesoporous NiO Hollow Sphere Film on FTO for High-Performance P-Type Dye-Sensitized Solar Cells Yang, Hong Bin Liu, Bin Khoo, Si Yun Zhu, Lin Nan Guo, Chun Xian Dong, Yong Qiang Li, Chang Ming School of Chemical and Biomedical Engineering hollow sphere dye-sensitized solar cells P-type dye sensitized solar cells (p-DSCs) deliver much lower overall efficiency than their inverse model, n-DSCs. However, they have fundamental and practical significance, in particular, their tandem structured solar cells with both p- and n-photoelectrodes could offer great potential to significantly improve the efficiency of existing solar cells. A facile and environmentally friendly method is developed to directly one-step grow hollow NiO spherical structures on fluorine-doped tin oxide (FTO) substrate, in which a Ni2+ and polymer complex spherical structure is self-constructed through a controlled solvent evaporation process, followed by calcination-converting to a unique NiO hollow sphere film. The prepared material is further used as a photocathode in p-type dye sensitized solar cells, resulting in 41% increase of an open-circuit voltage and 18% enhancement of power conversion efficiency than NiO nanoparticles photocathode. The improved performance can be ascribed to suppressed charge recombination at the photocathode/electrolyte interface. This template-free approach could be universally used to fabricate other nanostructured hollow spheres for a wide range of energy conversion applications such as electrochemical capacitors, chemical sensors, and electrochromic devices. ASTAR (Agency for Sci., Tech. and Research, S’pore) 2016-07-01T06:10:41Z 2019-12-06T14:35:25Z 2016-07-01T06:10:41Z 2019-12-06T14:35:25Z 2014 Journal Article Yang, H. B., Liu, B., Khoo, S. Y., Zhu, L. N., Guo, C. X., Dong, Y. Q., et al. (2014). One-Step Fabrication of Unique Mesoporous NiO Hollow Sphere Film on FTO for High-Performance P-Type Dye-Sensitized Solar Cells. Advanced Materials Interfaces, 1(3), 1300110-. 2196-7350 https://hdl.handle.net/10356/81641 http://hdl.handle.net/10220/40869 10.1002/admi.201300110 en Advanced Materials Interfaces © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
| spellingShingle | hollow sphere dye-sensitized solar cells Yang, Hong Bin Liu, Bin Khoo, Si Yun Zhu, Lin Nan Guo, Chun Xian Dong, Yong Qiang Li, Chang Ming One-Step Fabrication of Unique Mesoporous NiO Hollow Sphere Film on FTO for High-Performance P-Type Dye-Sensitized Solar Cells |
| title | One-Step Fabrication of Unique Mesoporous NiO Hollow Sphere Film on FTO for High-Performance P-Type Dye-Sensitized Solar Cells |
| title_full | One-Step Fabrication of Unique Mesoporous NiO Hollow Sphere Film on FTO for High-Performance P-Type Dye-Sensitized Solar Cells |
| title_fullStr | One-Step Fabrication of Unique Mesoporous NiO Hollow Sphere Film on FTO for High-Performance P-Type Dye-Sensitized Solar Cells |
| title_full_unstemmed | One-Step Fabrication of Unique Mesoporous NiO Hollow Sphere Film on FTO for High-Performance P-Type Dye-Sensitized Solar Cells |
| title_short | One-Step Fabrication of Unique Mesoporous NiO Hollow Sphere Film on FTO for High-Performance P-Type Dye-Sensitized Solar Cells |
| title_sort | one step fabrication of unique mesoporous nio hollow sphere film on fto for high performance p type dye sensitized solar cells |
| topic | hollow sphere dye-sensitized solar cells |
| url | https://hdl.handle.net/10356/81641 http://hdl.handle.net/10220/40869 |
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