Hydrogenated TiO2 Thin Film for Accelerating Electron Transport in Highly Efficient Planar Perovskite Solar Cells
Abstract Intensive studies on low‐temperature deposited electron transport materials have been performed to improve the efficiency of n‐i‐p type planar perovskite solar cells to extend their application on plastic and multijunction device architectures. Here, a TiO2 film with enhanced conductivity a...
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| Format: | Article |
| Language: | English |
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Wiley
2017-10-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.201700008 |
| _version_ | 1827876931066920960 |
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| author | Xin Yao Junhui Liang Yuelong Li Jingshan Luo Biao Shi Changchun Wei Dekun Zhang Baozhang Li Yi Ding Ying Zhao Xiaodan Zhang |
| author_facet | Xin Yao Junhui Liang Yuelong Li Jingshan Luo Biao Shi Changchun Wei Dekun Zhang Baozhang Li Yi Ding Ying Zhao Xiaodan Zhang |
| author_sort | Xin Yao |
| collection | DOAJ |
| description | Abstract Intensive studies on low‐temperature deposited electron transport materials have been performed to improve the efficiency of n‐i‐p type planar perovskite solar cells to extend their application on plastic and multijunction device architectures. Here, a TiO2 film with enhanced conductivity and tailored band edge is prepared by magnetron sputtering at room temperature by hydrogen doping (HTO), which accelerates the electron extraction from perovskite photoabsorber and reduces charge transfer resistance, resulting in an improved short circuit current density and fill factor. The HTO film with upward shifted Fermi level guarantees a smaller loss on VOC and facilitates the growth of high‐quality absorber with much larger grains and more uniform size, leading to devices with negligible hysteresis. In comparison with the pristine TiO2 prepared without hydrogen doping, the HTO‐based device exhibits a substantial performance enhancement leading to an efficiency of 19.30% and more stabilized photovoltaic performance maintaining 93% of its initial value after 300 min continuous illumination in the glove box. These properties permit the room‐temperature magnetron sputtered HTO film as a promising electron transport material for flexible and tandem perovskite solar cell in the future. |
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| id | doaj.art-31330b8c0b8e4e1285279b8c838c219d |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-03-12T17:29:30Z |
| publishDate | 2017-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-31330b8c0b8e4e1285279b8c838c219d2023-08-05T03:41:05ZengWileyAdvanced Science2198-38442017-10-01410n/an/a10.1002/advs.201700008Hydrogenated TiO2 Thin Film for Accelerating Electron Transport in Highly Efficient Planar Perovskite Solar CellsXin Yao0Junhui Liang1Yuelong Li2Jingshan Luo3Biao Shi4Changchun Wei5Dekun Zhang6Baozhang Li7Yi Ding8Ying Zhao9Xiaodan Zhang10Institute of Photoelectronic Thin Film Devices and Technology of Nankai University Tianjin 300071 P. R. ChinaInstitute of Photoelectronic Thin Film Devices and Technology of Nankai University Tianjin 300071 P. R. ChinaInstitute of Photoelectronic Thin Film Devices and Technology of Nankai University Tianjin 300071 P. R. ChinaLaboratory for Photonics and Interfaces Institution of Chemical Sciences and Engineering School of Basic Sciences Swiss Federal Institute of Technology Lausanne CH‐1015 SwitzerlandInstitute of Photoelectronic Thin Film Devices and Technology of Nankai University Tianjin 300071 P. R. ChinaInstitute of Photoelectronic Thin Film Devices and Technology of Nankai University Tianjin 300071 P. R. ChinaInstitute of Photoelectronic Thin Film Devices and Technology of Nankai University Tianjin 300071 P. R. ChinaInstitute of Photoelectronic Thin Film Devices and Technology of Nankai University Tianjin 300071 P. R. ChinaInstitute of Photoelectronic Thin Film Devices and Technology of Nankai University Tianjin 300071 P. R. ChinaInstitute of Photoelectronic Thin Film Devices and Technology of Nankai University Tianjin 300071 P. R. ChinaInstitute of Photoelectronic Thin Film Devices and Technology of Nankai University Tianjin 300071 P. R. ChinaAbstract Intensive studies on low‐temperature deposited electron transport materials have been performed to improve the efficiency of n‐i‐p type planar perovskite solar cells to extend their application on plastic and multijunction device architectures. Here, a TiO2 film with enhanced conductivity and tailored band edge is prepared by magnetron sputtering at room temperature by hydrogen doping (HTO), which accelerates the electron extraction from perovskite photoabsorber and reduces charge transfer resistance, resulting in an improved short circuit current density and fill factor. The HTO film with upward shifted Fermi level guarantees a smaller loss on VOC and facilitates the growth of high‐quality absorber with much larger grains and more uniform size, leading to devices with negligible hysteresis. In comparison with the pristine TiO2 prepared without hydrogen doping, the HTO‐based device exhibits a substantial performance enhancement leading to an efficiency of 19.30% and more stabilized photovoltaic performance maintaining 93% of its initial value after 300 min continuous illumination in the glove box. These properties permit the room‐temperature magnetron sputtered HTO film as a promising electron transport material for flexible and tandem perovskite solar cell in the future.https://doi.org/10.1002/advs.201700008electron transport layerfaster electron transport behaviorhydrogen dopingplanar perovskite solar cellsroom temperature magnetron sputtering process |
| spellingShingle | Xin Yao Junhui Liang Yuelong Li Jingshan Luo Biao Shi Changchun Wei Dekun Zhang Baozhang Li Yi Ding Ying Zhao Xiaodan Zhang Hydrogenated TiO2 Thin Film for Accelerating Electron Transport in Highly Efficient Planar Perovskite Solar Cells Advanced Science electron transport layer faster electron transport behavior hydrogen doping planar perovskite solar cells room temperature magnetron sputtering process |
| title | Hydrogenated TiO2 Thin Film for Accelerating Electron Transport in Highly Efficient Planar Perovskite Solar Cells |
| title_full | Hydrogenated TiO2 Thin Film for Accelerating Electron Transport in Highly Efficient Planar Perovskite Solar Cells |
| title_fullStr | Hydrogenated TiO2 Thin Film for Accelerating Electron Transport in Highly Efficient Planar Perovskite Solar Cells |
| title_full_unstemmed | Hydrogenated TiO2 Thin Film for Accelerating Electron Transport in Highly Efficient Planar Perovskite Solar Cells |
| title_short | Hydrogenated TiO2 Thin Film for Accelerating Electron Transport in Highly Efficient Planar Perovskite Solar Cells |
| title_sort | hydrogenated tio2 thin film for accelerating electron transport in highly efficient planar perovskite solar cells |
| topic | electron transport layer faster electron transport behavior hydrogen doping planar perovskite solar cells room temperature magnetron sputtering process |
| url | https://doi.org/10.1002/advs.201700008 |
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