Grain growth study of perovskite thin films prepared by flash evaporation and its effect on solar cell performance
Flash evaporation is a vacuum-based evaporation method that is particularly suitable to prepare perovskite films for solar cell devices. Growth pressure has been found to be a critical parameter for perovskite film growth. The transport-determined growth mechanism is discussed in detail. The dense M...
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| Veröffentlicht in: | RSC advances 2016-01, Vol.6 (54), p.48851-48857 |
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| creator | Xu, Haitao Wu, Yanglin Xu, Fuzong Zhu, Jiabin Ni, Chaowei Wang, Wenzhen Hong, Feng Xu, Run Xu, Fei Huang, Jian Wang, Linjun |
| description | Flash evaporation is a vacuum-based evaporation method that is particularly suitable to prepare perovskite films for solar cell devices. Growth pressure has been found to be a critical parameter for perovskite film growth. The transport-determined growth mechanism is discussed in detail. The dense MAPbI
3
films can be achieved only under a low growth pressure of 5 × 10
−3
Pa, while a rough surface covered by step-like grains and voids is found for MAPbI
3
films grown under a high Ar pressure of 10 Pa. In addition, we found that the presence of PbI
2
phase in the perovskite films could suppress the growth of the grain size; by using precursors with a high MAI/PbI
2
ratio, evaporated MAPbI
3
films with grain sizes larger than 500 nm can be achieved. The average power conversion efficiency of the perovskite solar cells increased from 1.82% to 10.01% with increasing grain size, indicating the universal importance of controlling the perovskite grain size for the performance improvement of solar cells based on both solution and evaporated perovskite films.
Flash-evaporated perovskite films with large grain sizes lead to high efficiency solar cell devices. |
| doi_str_mv | 10.1039/c6ra07549e |
| format | Article |
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3
films can be achieved only under a low growth pressure of 5 × 10
−3
Pa, while a rough surface covered by step-like grains and voids is found for MAPbI
3
films grown under a high Ar pressure of 10 Pa. In addition, we found that the presence of PbI
2
phase in the perovskite films could suppress the growth of the grain size; by using precursors with a high MAI/PbI
2
ratio, evaporated MAPbI
3
films with grain sizes larger than 500 nm can be achieved. The average power conversion efficiency of the perovskite solar cells increased from 1.82% to 10.01% with increasing grain size, indicating the universal importance of controlling the perovskite grain size for the performance improvement of solar cells based on both solution and evaporated perovskite films.
Flash-evaporated perovskite films with large grain sizes lead to high efficiency solar cell devices.</description><identifier>ISSN: 2046-2069</identifier><identifier>EISSN: 2046-2069</identifier><identifier>DOI: 10.1039/c6ra07549e</identifier><language>eng</language><subject>Energy conversion efficiency ; Evaporation ; Film growth ; Grain size ; Perovskites ; Photovoltaic cells ; Solar cells ; Thin films</subject><ispartof>RSC advances, 2016-01, Vol.6 (54), p.48851-48857</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c286t-1fca8662dd45f2f147764212c04decdd004b1006f4e92d505853c99100d22fc3</citedby><cites>FETCH-LOGICAL-c286t-1fca8662dd45f2f147764212c04decdd004b1006f4e92d505853c99100d22fc3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Xu, Haitao</creatorcontrib><creatorcontrib>Wu, Yanglin</creatorcontrib><creatorcontrib>Xu, Fuzong</creatorcontrib><creatorcontrib>Zhu, Jiabin</creatorcontrib><creatorcontrib>Ni, Chaowei</creatorcontrib><creatorcontrib>Wang, Wenzhen</creatorcontrib><creatorcontrib>Hong, Feng</creatorcontrib><creatorcontrib>Xu, Run</creatorcontrib><creatorcontrib>Xu, Fei</creatorcontrib><creatorcontrib>Huang, Jian</creatorcontrib><creatorcontrib>Wang, Linjun</creatorcontrib><title>Grain growth study of perovskite thin films prepared by flash evaporation and its effect on solar cell performance</title><title>RSC advances</title><description>Flash evaporation is a vacuum-based evaporation method that is particularly suitable to prepare perovskite films for solar cell devices. Growth pressure has been found to be a critical parameter for perovskite film growth. The transport-determined growth mechanism is discussed in detail. The dense MAPbI
3
films can be achieved only under a low growth pressure of 5 × 10
−3
Pa, while a rough surface covered by step-like grains and voids is found for MAPbI
3
films grown under a high Ar pressure of 10 Pa. In addition, we found that the presence of PbI
2
phase in the perovskite films could suppress the growth of the grain size; by using precursors with a high MAI/PbI
2
ratio, evaporated MAPbI
3
films with grain sizes larger than 500 nm can be achieved. The average power conversion efficiency of the perovskite solar cells increased from 1.82% to 10.01% with increasing grain size, indicating the universal importance of controlling the perovskite grain size for the performance improvement of solar cells based on both solution and evaporated perovskite films.
Flash-evaporated perovskite films with large grain sizes lead to high efficiency solar cell devices.</description><subject>Energy conversion efficiency</subject><subject>Evaporation</subject><subject>Film growth</subject><subject>Grain size</subject><subject>Perovskites</subject><subject>Photovoltaic cells</subject><subject>Solar cells</subject><subject>Thin films</subject><issn>2046-2069</issn><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNpNkEFLAzEQhYMoWGov3oUcRVhNskm2eyylVkEQpPclTSZ2dXezTtJK_71bK-pcZnjz8Zh5hFxydstZXt5ZjYYVSpZwQkaCSZ0JpsvTf_M5mcT4xobSigvNRwSXaOqOvmL4TBsa09btafC0Bwy7-F4noGkz7H3dtJH2CL1BcHS9p74xcUNhZ_qAJtWho6ZztE6RgvdgEx2UGBqD1ELTHAx9wNZ0Fi7ImTdNhMlPH5PV_WI1f8ienpeP89lTZsVUp4x7a6ZaC-ek8sJzWRRaCi4skw6sc4zJNR8e8RJK4RRTU5XbshwkJ4S3-ZhcH217DB9biKlq63i4xXQQtrHiU66ZUkoXA3pzRC2GGBF81WPdGtxXnFWHaKu5fpl9R7sY4KsjjNH-cn_R518W7Xaq</recordid><startdate>20160101</startdate><enddate>20160101</enddate><creator>Xu, Haitao</creator><creator>Wu, Yanglin</creator><creator>Xu, Fuzong</creator><creator>Zhu, Jiabin</creator><creator>Ni, Chaowei</creator><creator>Wang, Wenzhen</creator><creator>Hong, Feng</creator><creator>Xu, Run</creator><creator>Xu, Fei</creator><creator>Huang, Jian</creator><creator>Wang, Linjun</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20160101</creationdate><title>Grain growth study of perovskite thin films prepared by flash evaporation and its effect on solar cell performance</title><author>Xu, Haitao ; Wu, Yanglin ; Xu, Fuzong ; Zhu, Jiabin ; Ni, Chaowei ; Wang, Wenzhen ; Hong, Feng ; Xu, Run ; Xu, Fei ; Huang, Jian ; Wang, Linjun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c286t-1fca8662dd45f2f147764212c04decdd004b1006f4e92d505853c99100d22fc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Energy conversion efficiency</topic><topic>Evaporation</topic><topic>Film growth</topic><topic>Grain size</topic><topic>Perovskites</topic><topic>Photovoltaic cells</topic><topic>Solar cells</topic><topic>Thin films</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xu, Haitao</creatorcontrib><creatorcontrib>Wu, Yanglin</creatorcontrib><creatorcontrib>Xu, Fuzong</creatorcontrib><creatorcontrib>Zhu, Jiabin</creatorcontrib><creatorcontrib>Ni, Chaowei</creatorcontrib><creatorcontrib>Wang, Wenzhen</creatorcontrib><creatorcontrib>Hong, Feng</creatorcontrib><creatorcontrib>Xu, Run</creatorcontrib><creatorcontrib>Xu, Fei</creatorcontrib><creatorcontrib>Huang, Jian</creatorcontrib><creatorcontrib>Wang, Linjun</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>RSC advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xu, Haitao</au><au>Wu, Yanglin</au><au>Xu, Fuzong</au><au>Zhu, Jiabin</au><au>Ni, Chaowei</au><au>Wang, Wenzhen</au><au>Hong, Feng</au><au>Xu, Run</au><au>Xu, Fei</au><au>Huang, Jian</au><au>Wang, Linjun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Grain growth study of perovskite thin films prepared by flash evaporation and its effect on solar cell performance</atitle><jtitle>RSC advances</jtitle><date>2016-01-01</date><risdate>2016</risdate><volume>6</volume><issue>54</issue><spage>48851</spage><epage>48857</epage><pages>48851-48857</pages><issn>2046-2069</issn><eissn>2046-2069</eissn><abstract>Flash evaporation is a vacuum-based evaporation method that is particularly suitable to prepare perovskite films for solar cell devices. Growth pressure has been found to be a critical parameter for perovskite film growth. The transport-determined growth mechanism is discussed in detail. The dense MAPbI
3
films can be achieved only under a low growth pressure of 5 × 10
−3
Pa, while a rough surface covered by step-like grains and voids is found for MAPbI
3
films grown under a high Ar pressure of 10 Pa. In addition, we found that the presence of PbI
2
phase in the perovskite films could suppress the growth of the grain size; by using precursors with a high MAI/PbI
2
ratio, evaporated MAPbI
3
films with grain sizes larger than 500 nm can be achieved. The average power conversion efficiency of the perovskite solar cells increased from 1.82% to 10.01% with increasing grain size, indicating the universal importance of controlling the perovskite grain size for the performance improvement of solar cells based on both solution and evaporated perovskite films.
Flash-evaporated perovskite films with large grain sizes lead to high efficiency solar cell devices.</abstract><doi>10.1039/c6ra07549e</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2046-2069 |
| ispartof | RSC advances, 2016-01, Vol.6 (54), p.48851-48857 |
| issn | 2046-2069 2046-2069 |
| language | eng |
| recordid | cdi_rsc_primary_c6ra07549e |
| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Energy conversion efficiency Evaporation Film growth Grain size Perovskites Photovoltaic cells Solar cells Thin films |
| title | Grain growth study of perovskite thin films prepared by flash evaporation and its effect on solar cell performance |
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