Water assisted formation of highly oriented CsPbI2Br perovskite films with the solar cell efficiency exceeding 16
Cesium lead halide perovskites are promising alternatives as light-absorbing materials for achieving perovskite solar cells with excellent thermal stability, but their inferior power conversion efficiency (PCE) and ambient instability are impeding their application. In this work, we show that liquid...
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| Veröffentlicht in: | Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2020-09, Vol.8 (34), p.17670-17674 |
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| container_issue | 34 |
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| container_title | Journal of materials chemistry. A, Materials for energy and sustainability |
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| creator | Lin, Ze Qing Hong Wei Qiao Zi Ren Zhou Hou, Yu Li, Xiaolong Hua Gui Yang Yang, Shuang |
| description | Cesium lead halide perovskites are promising alternatives as light-absorbing materials for achieving perovskite solar cells with excellent thermal stability, but their inferior power conversion efficiency (PCE) and ambient instability are impeding their application. In this work, we show that liquid water can assist the formation of CsPbI2Br perovskites under the synergetic adsorption of H2O and dimethylsulfoxide (DMSO), which enabled uniform, [100] oriented CsPbI2Br films with a grain size up to 4.4 μm. It was found that a suitable amount of H2O helps desorb the DMSO molecules, and thus favours the formation of a cubic perovskite phase from DMSO complexed intermediates. Perovskite solar cells based on our strategy delivered an optimized PCE of 16.47% with a high open-voltage of 1.33 V, as well as good device stability against humidity, light and heat. |
| doi_str_mv | 10.1039/d0ta05118g |
| format | Article |
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In this work, we show that liquid water can assist the formation of CsPbI2Br perovskites under the synergetic adsorption of H2O and dimethylsulfoxide (DMSO), which enabled uniform, [100] oriented CsPbI2Br films with a grain size up to 4.4 μm. It was found that a suitable amount of H2O helps desorb the DMSO molecules, and thus favours the formation of a cubic perovskite phase from DMSO complexed intermediates. Perovskite solar cells based on our strategy delivered an optimized PCE of 16.47% with a high open-voltage of 1.33 V, as well as good device stability against humidity, light and heat.</description><identifier>ISSN: 2050-7488</identifier><identifier>EISSN: 2050-7496</identifier><identifier>DOI: 10.1039/d0ta05118g</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Cesium ; Electromagnetic absorption ; Energy conversion efficiency ; Grain size ; Intermediates ; Lead compounds ; Metal halides ; Perovskites ; Photovoltaic cells ; Solar cells ; Thermal stability ; Water</subject><ispartof>Journal of materials chemistry. 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A, Materials for energy and sustainability</title><description>Cesium lead halide perovskites are promising alternatives as light-absorbing materials for achieving perovskite solar cells with excellent thermal stability, but their inferior power conversion efficiency (PCE) and ambient instability are impeding their application. In this work, we show that liquid water can assist the formation of CsPbI2Br perovskites under the synergetic adsorption of H2O and dimethylsulfoxide (DMSO), which enabled uniform, [100] oriented CsPbI2Br films with a grain size up to 4.4 μm. It was found that a suitable amount of H2O helps desorb the DMSO molecules, and thus favours the formation of a cubic perovskite phase from DMSO complexed intermediates. Perovskite solar cells based on our strategy delivered an optimized PCE of 16.47% with a high open-voltage of 1.33 V, as well as good device stability against humidity, light and heat.</description><subject>Cesium</subject><subject>Electromagnetic absorption</subject><subject>Energy conversion efficiency</subject><subject>Grain size</subject><subject>Intermediates</subject><subject>Lead compounds</subject><subject>Metal halides</subject><subject>Perovskites</subject><subject>Photovoltaic cells</subject><subject>Solar cells</subject><subject>Thermal stability</subject><subject>Water</subject><issn>2050-7488</issn><issn>2050-7496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNo9jUFLAzEUhIMoWGov_oIHnleTbLLJHrWoLRT0oHgsafZlN3W7aZNU7b-3ojiXGfiYGUIuGb1mtKxvGpoNlYzp9oSMOJW0UKKuTv-z1udkktKaHqUprep6RHZvJmMEk5JPGRtwIW5M9mGA4KDzbdcfIESPww-cpufVnN9F2GIMH-ndZwTn-02CT587yB1CCr2JYLHvAZ3z9ti0B8Avi9j4oQVWXZAzZ_qEkz8fk9eH-5fprFg8Pc6nt4ui5ZzmQslK4wqriktjlWUNqlUpBXJGObPCSUutdkIpzbRizqFG03ArhGU156Uqx-Tqd3cbw26PKS_XYR-H4-WSi7KuNRNSl9-Fd1zr</recordid><startdate>20200914</startdate><enddate>20200914</enddate><creator>Lin, Ze Qing</creator><creator>Hong Wei Qiao</creator><creator>Zi Ren Zhou</creator><creator>Hou, Yu</creator><creator>Li, Xiaolong</creator><creator>Hua Gui Yang</creator><creator>Yang, Shuang</creator><general>Royal Society of Chemistry</general><scope>7SP</scope><scope>7SR</scope><scope>7ST</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>JG9</scope><scope>L7M</scope><scope>SOI</scope></search><sort><creationdate>20200914</creationdate><title>Water assisted formation of highly oriented CsPbI2Br perovskite films with the solar cell efficiency exceeding 16</title><author>Lin, Ze Qing ; Hong Wei Qiao ; Zi Ren Zhou ; Hou, Yu ; Li, Xiaolong ; Hua Gui Yang ; Yang, Shuang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g220t-7568ebe6625ac7c1de7b354e21021c4f5c0c8f47781871ffe8ead2c44c1922373</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Cesium</topic><topic>Electromagnetic absorption</topic><topic>Energy conversion efficiency</topic><topic>Grain size</topic><topic>Intermediates</topic><topic>Lead compounds</topic><topic>Metal halides</topic><topic>Perovskites</topic><topic>Photovoltaic cells</topic><topic>Solar cells</topic><topic>Thermal stability</topic><topic>Water</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lin, Ze Qing</creatorcontrib><creatorcontrib>Hong Wei Qiao</creatorcontrib><creatorcontrib>Zi Ren Zhou</creatorcontrib><creatorcontrib>Hou, Yu</creatorcontrib><creatorcontrib>Li, Xiaolong</creatorcontrib><creatorcontrib>Hua Gui Yang</creatorcontrib><creatorcontrib>Yang, Shuang</creatorcontrib><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Environment Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><jtitle>Journal of materials chemistry. 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A, Materials for energy and sustainability</jtitle><date>2020-09-14</date><risdate>2020</risdate><volume>8</volume><issue>34</issue><spage>17670</spage><epage>17674</epage><pages>17670-17674</pages><issn>2050-7488</issn><eissn>2050-7496</eissn><abstract>Cesium lead halide perovskites are promising alternatives as light-absorbing materials for achieving perovskite solar cells with excellent thermal stability, but their inferior power conversion efficiency (PCE) and ambient instability are impeding their application. In this work, we show that liquid water can assist the formation of CsPbI2Br perovskites under the synergetic adsorption of H2O and dimethylsulfoxide (DMSO), which enabled uniform, [100] oriented CsPbI2Br films with a grain size up to 4.4 μm. It was found that a suitable amount of H2O helps desorb the DMSO molecules, and thus favours the formation of a cubic perovskite phase from DMSO complexed intermediates. 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| ispartof | Journal of materials chemistry. A, Materials for energy and sustainability, 2020-09, Vol.8 (34), p.17670-17674 |
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| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Cesium Electromagnetic absorption Energy conversion efficiency Grain size Intermediates Lead compounds Metal halides Perovskites Photovoltaic cells Solar cells Thermal stability Water |
| title | Water assisted formation of highly oriented CsPbI2Br perovskite films with the solar cell efficiency exceeding 16 |
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