2% ZnO increases the conversion efficiency of TiO2 based dye sensitized solar cells by 12
•Conversion efficiency improvement of 12% for TiO2 DSSCs is realized by adding just 2% of ZnO.•Charge recombination is reduced by the formation of energy barrier.•A rather simple strategy is used to accomplish the competing requirements. High efficiency dye sensitized solar cells requires hierarchic...
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| Veröffentlicht in: | Journal of alloys and compounds 2014, Vol.583, p.414-418 |
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| container_title | Journal of alloys and compounds |
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| creator | Wang, Guangchao Cai, Zhixia Li, Fengrong Tan, Songting Xie, Shuhong Li, Jiangyu |
| description | •Conversion efficiency improvement of 12% for TiO2 DSSCs is realized by adding just 2% of ZnO.•Charge recombination is reduced by the formation of energy barrier.•A rather simple strategy is used to accomplish the competing requirements.
High efficiency dye sensitized solar cells requires hierarchical photoanodes of large surface areas for effective light scattering and harvesting, rapid electron transfer and transport, and reduced charge recombination. In this work, we report a rather simple strategy to accomplish these competing requirements. By adding just 2% of ZnO into TiO2 based photoanodes, we observe that the dye adsorption is increased, the light scattering is enhanced, and electron transfer is improved, all accomplished without compromising large surface areas afforded by TiO2 nanoparticles. As a result, conversion efficiency of 9.53% is realized, which is 12% higher than TiO2 photoanodes without ZnO addition. |
| doi_str_mv | 10.1016/j.jallcom.2013.08.212 |
| format | Article |
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High efficiency dye sensitized solar cells requires hierarchical photoanodes of large surface areas for effective light scattering and harvesting, rapid electron transfer and transport, and reduced charge recombination. In this work, we report a rather simple strategy to accomplish these competing requirements. By adding just 2% of ZnO into TiO2 based photoanodes, we observe that the dye adsorption is increased, the light scattering is enhanced, and electron transfer is improved, all accomplished without compromising large surface areas afforded by TiO2 nanoparticles. As a result, conversion efficiency of 9.53% is realized, which is 12% higher than TiO2 photoanodes without ZnO addition.</description><identifier>ISSN: 0925-8388</identifier><identifier>EISSN: 1873-4669</identifier><identifier>DOI: 10.1016/j.jallcom.2013.08.212</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Applied sciences ; Conversion efficiency ; Dyes ; Electron transfer ; Energy ; Exact sciences and technology ; Light scattering ; Natural energy ; Photoanode materials ; Photovoltaic cells ; Photovoltaic conversion ; Photovoltaic properties ; Solar cells ; Solar cells. Photoelectrochemical cells ; Solar energy ; Surface area ; TiO2 nanoparticles ; Titanium dioxide ; Zinc oxide</subject><ispartof>Journal of alloys and compounds, 2014, Vol.583, p.414-418</ispartof><rights>2013 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c409t-a9a7ed313c910eddbc25ff01bb240ba6824cdd589adf6f815a0a90b6dd07495d3</citedby><cites>FETCH-LOGICAL-c409t-a9a7ed313c910eddbc25ff01bb240ba6824cdd589adf6f815a0a90b6dd07495d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jallcom.2013.08.212$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,4022,27922,27923,27924,45994</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28259206$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Wang, Guangchao</creatorcontrib><creatorcontrib>Cai, Zhixia</creatorcontrib><creatorcontrib>Li, Fengrong</creatorcontrib><creatorcontrib>Tan, Songting</creatorcontrib><creatorcontrib>Xie, Shuhong</creatorcontrib><creatorcontrib>Li, Jiangyu</creatorcontrib><title>2% ZnO increases the conversion efficiency of TiO2 based dye sensitized solar cells by 12</title><title>Journal of alloys and compounds</title><description>•Conversion efficiency improvement of 12% for TiO2 DSSCs is realized by adding just 2% of ZnO.•Charge recombination is reduced by the formation of energy barrier.•A rather simple strategy is used to accomplish the competing requirements.
High efficiency dye sensitized solar cells requires hierarchical photoanodes of large surface areas for effective light scattering and harvesting, rapid electron transfer and transport, and reduced charge recombination. In this work, we report a rather simple strategy to accomplish these competing requirements. By adding just 2% of ZnO into TiO2 based photoanodes, we observe that the dye adsorption is increased, the light scattering is enhanced, and electron transfer is improved, all accomplished without compromising large surface areas afforded by TiO2 nanoparticles. As a result, conversion efficiency of 9.53% is realized, which is 12% higher than TiO2 photoanodes without ZnO addition.</description><subject>Applied sciences</subject><subject>Conversion efficiency</subject><subject>Dyes</subject><subject>Electron transfer</subject><subject>Energy</subject><subject>Exact sciences and technology</subject><subject>Light scattering</subject><subject>Natural energy</subject><subject>Photoanode materials</subject><subject>Photovoltaic cells</subject><subject>Photovoltaic conversion</subject><subject>Photovoltaic properties</subject><subject>Solar cells</subject><subject>Solar cells. 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High efficiency dye sensitized solar cells requires hierarchical photoanodes of large surface areas for effective light scattering and harvesting, rapid electron transfer and transport, and reduced charge recombination. In this work, we report a rather simple strategy to accomplish these competing requirements. By adding just 2% of ZnO into TiO2 based photoanodes, we observe that the dye adsorption is increased, the light scattering is enhanced, and electron transfer is improved, all accomplished without compromising large surface areas afforded by TiO2 nanoparticles. As a result, conversion efficiency of 9.53% is realized, which is 12% higher than TiO2 photoanodes without ZnO addition.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jallcom.2013.08.212</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0925-8388 |
| ispartof | Journal of alloys and compounds, 2014, Vol.583, p.414-418 |
| issn | 0925-8388 1873-4669 |
| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Applied sciences Conversion efficiency Dyes Electron transfer Energy Exact sciences and technology Light scattering Natural energy Photoanode materials Photovoltaic cells Photovoltaic conversion Photovoltaic properties Solar cells Solar cells. Photoelectrochemical cells Solar energy Surface area TiO2 nanoparticles Titanium dioxide Zinc oxide |
| title | 2% ZnO increases the conversion efficiency of TiO2 based dye sensitized solar cells by 12 |
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