A novel dopant for spiro-OMeTAD towards efficient and stable perovskite solar cells
2,2′,7,7′-tetrakis-( N , N -di-4-methoxyphenylamino)-9,9′-spirobifluorene (spiro-OMeTAD), as the most common used hole transport material (HTM), plays a significant role in the normal structured (n-i-p) high-efficiency perovskite solar cells (PSCs). In general, it is prepared by a halogen solvent (c...
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| Veröffentlicht in: | Science China materials 2021-12, Vol.64 (12), p.2915-2925 |
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| container_title | Science China materials |
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| creator | Lin, Zhipeng Li, Jing Li, Hengyi Mo, Yanping Pan, Junye Wang, Chao Zhang, Xiao-Li Bu, Tongle Zhong, Jie Cheng, Yi-Bing Huang, Fuzhi |
| description | 2,2′,7,7′-tetrakis-(
N
,
N
-di-4-methoxyphenylamino)-9,9′-spirobifluorene (spiro-OMeTAD), as the most common used hole transport material (HTM), plays a significant role in the normal structured (n-i-p) high-efficiency perovskite solar cells (PSCs). In general, it is prepared by a halogen solvent (chlorobenzene, CBZ) and needs an ion dopant (lithium bis (trifluoromethanesulfonyl)imide, Li-TFSI) to improve its conductivity and hole mobility. However, such a halogen solvent is not environmentally friendly and the widely used Li-TFSI dopant would affect the stability of PSCs. Herein, we develop a non-halogen solvent—tetrahydrofuran (THF)-prepared spiro-OMeTAD solution with a new p-type dopant, potassium bis(fluorosulfonyl)imide (K-FSI), to apply into PSCs. By this strategy, high-hole-mobility spiro-OMeTAD film is achieved. Meanwhile, the potassium ions introduced by diffusion into perovskite surface passivate the interfacial defects. Therefore, a hysteresis-free champion PSC with an efficiency of 21.02% is obtained, along with significantly improved stability against illumination and ambient conditions. This work provides a new strategy for HTMs toward hysteresis-free high-efficiency and stable PSCs by substituting dopants. |
| doi_str_mv | 10.1007/s40843-021-1705-8 |
| format | Article |
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N
,
N
-di-4-methoxyphenylamino)-9,9′-spirobifluorene (spiro-OMeTAD), as the most common used hole transport material (HTM), plays a significant role in the normal structured (n-i-p) high-efficiency perovskite solar cells (PSCs). In general, it is prepared by a halogen solvent (chlorobenzene, CBZ) and needs an ion dopant (lithium bis (trifluoromethanesulfonyl)imide, Li-TFSI) to improve its conductivity and hole mobility. However, such a halogen solvent is not environmentally friendly and the widely used Li-TFSI dopant would affect the stability of PSCs. Herein, we develop a non-halogen solvent—tetrahydrofuran (THF)-prepared spiro-OMeTAD solution with a new p-type dopant, potassium bis(fluorosulfonyl)imide (K-FSI), to apply into PSCs. By this strategy, high-hole-mobility spiro-OMeTAD film is achieved. Meanwhile, the potassium ions introduced by diffusion into perovskite surface passivate the interfacial defects. Therefore, a hysteresis-free champion PSC with an efficiency of 21.02% is obtained, along with significantly improved stability against illumination and ambient conditions. This work provides a new strategy for HTMs toward hysteresis-free high-efficiency and stable PSCs by substituting dopants.</description><identifier>ISSN: 2095-8226</identifier><identifier>EISSN: 2199-4501</identifier><identifier>DOI: 10.1007/s40843-021-1705-8</identifier><language>eng</language><publisher>Beijing: Science China Press</publisher><subject>Chemistry and Materials Science ; Chemistry/Food Science ; Chlorobenzene ; Dopants ; Efficiency ; Hole mobility ; Hysteresis ; Lithium ; Materials Science ; Perovskites ; Photovoltaic cells ; Potassium ; Solar cells ; Solvents ; Stability ; Tetrahydrofuran</subject><ispartof>Science China materials, 2021-12, Vol.64 (12), p.2915-2925</ispartof><rights>Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021</rights><rights>Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c359t-14c8a3e4561798e500913f7dc59c6a490a701bd6b53d6e98a829abb021e7af923</citedby><cites>FETCH-LOGICAL-c359t-14c8a3e4561798e500913f7dc59c6a490a701bd6b53d6e98a829abb021e7af923</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s40843-021-1705-8$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s40843-021-1705-8$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Lin, Zhipeng</creatorcontrib><creatorcontrib>Li, Jing</creatorcontrib><creatorcontrib>Li, Hengyi</creatorcontrib><creatorcontrib>Mo, Yanping</creatorcontrib><creatorcontrib>Pan, Junye</creatorcontrib><creatorcontrib>Wang, Chao</creatorcontrib><creatorcontrib>Zhang, Xiao-Li</creatorcontrib><creatorcontrib>Bu, Tongle</creatorcontrib><creatorcontrib>Zhong, Jie</creatorcontrib><creatorcontrib>Cheng, Yi-Bing</creatorcontrib><creatorcontrib>Huang, Fuzhi</creatorcontrib><title>A novel dopant for spiro-OMeTAD towards efficient and stable perovskite solar cells</title><title>Science China materials</title><addtitle>Sci. China Mater</addtitle><description>2,2′,7,7′-tetrakis-(
N
,
N
-di-4-methoxyphenylamino)-9,9′-spirobifluorene (spiro-OMeTAD), as the most common used hole transport material (HTM), plays a significant role in the normal structured (n-i-p) high-efficiency perovskite solar cells (PSCs). In general, it is prepared by a halogen solvent (chlorobenzene, CBZ) and needs an ion dopant (lithium bis (trifluoromethanesulfonyl)imide, Li-TFSI) to improve its conductivity and hole mobility. However, such a halogen solvent is not environmentally friendly and the widely used Li-TFSI dopant would affect the stability of PSCs. Herein, we develop a non-halogen solvent—tetrahydrofuran (THF)-prepared spiro-OMeTAD solution with a new p-type dopant, potassium bis(fluorosulfonyl)imide (K-FSI), to apply into PSCs. By this strategy, high-hole-mobility spiro-OMeTAD film is achieved. Meanwhile, the potassium ions introduced by diffusion into perovskite surface passivate the interfacial defects. Therefore, a hysteresis-free champion PSC with an efficiency of 21.02% is obtained, along with significantly improved stability against illumination and ambient conditions. This work provides a new strategy for HTMs toward hysteresis-free high-efficiency and stable PSCs by substituting dopants.</description><subject>Chemistry and Materials Science</subject><subject>Chemistry/Food Science</subject><subject>Chlorobenzene</subject><subject>Dopants</subject><subject>Efficiency</subject><subject>Hole mobility</subject><subject>Hysteresis</subject><subject>Lithium</subject><subject>Materials Science</subject><subject>Perovskites</subject><subject>Photovoltaic cells</subject><subject>Potassium</subject><subject>Solar cells</subject><subject>Solvents</subject><subject>Stability</subject><subject>Tetrahydrofuran</subject><issn>2095-8226</issn><issn>2199-4501</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp1kM1OwzAQhCMEElXpA3CzxNmw68SJfazKr1TUA-VsOckGpYQ42GkRb4-rIHHitKvVN7OaSZJLhGsEKG5CBipLOQjkWIDk6iSZCdSaZxLwNO6g41GI_DxZhLADAMwlolaz5GXJenegjtVusP3IGudZGFrv-OaZtstbNrov6-vAqGnaqqWI2L5mYbRlR2wg7w7hvR2JBddZzyrqunCRnDW2C7T4nfPk9f5uu3rk683D02q55lUq9cgxq5RNKZM5FlqRBNCYNkVdSV3lNtNgC8CyzkuZ1jlpZZXQtixjSipso0U6T64m38G7zz2F0ezc3vfxpRFSawQhCx0pnKjKuxA8NWbw7Yf13wbBHOszU30mGptjfUZFjZg0IbL9G_k_5_9FP47vcU8</recordid><startdate>20211201</startdate><enddate>20211201</enddate><creator>Lin, Zhipeng</creator><creator>Li, Jing</creator><creator>Li, Hengyi</creator><creator>Mo, Yanping</creator><creator>Pan, Junye</creator><creator>Wang, Chao</creator><creator>Zhang, Xiao-Li</creator><creator>Bu, Tongle</creator><creator>Zhong, Jie</creator><creator>Cheng, Yi-Bing</creator><creator>Huang, Fuzhi</creator><general>Science China Press</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20211201</creationdate><title>A novel dopant for spiro-OMeTAD towards efficient and stable perovskite solar cells</title><author>Lin, Zhipeng ; Li, Jing ; Li, Hengyi ; Mo, Yanping ; Pan, Junye ; Wang, Chao ; Zhang, Xiao-Li ; Bu, Tongle ; Zhong, Jie ; Cheng, Yi-Bing ; Huang, Fuzhi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c359t-14c8a3e4561798e500913f7dc59c6a490a701bd6b53d6e98a829abb021e7af923</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Chemistry and Materials Science</topic><topic>Chemistry/Food Science</topic><topic>Chlorobenzene</topic><topic>Dopants</topic><topic>Efficiency</topic><topic>Hole mobility</topic><topic>Hysteresis</topic><topic>Lithium</topic><topic>Materials Science</topic><topic>Perovskites</topic><topic>Photovoltaic cells</topic><topic>Potassium</topic><topic>Solar cells</topic><topic>Solvents</topic><topic>Stability</topic><topic>Tetrahydrofuran</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lin, Zhipeng</creatorcontrib><creatorcontrib>Li, Jing</creatorcontrib><creatorcontrib>Li, Hengyi</creatorcontrib><creatorcontrib>Mo, Yanping</creatorcontrib><creatorcontrib>Pan, Junye</creatorcontrib><creatorcontrib>Wang, Chao</creatorcontrib><creatorcontrib>Zhang, Xiao-Li</creatorcontrib><creatorcontrib>Bu, Tongle</creatorcontrib><creatorcontrib>Zhong, Jie</creatorcontrib><creatorcontrib>Cheng, Yi-Bing</creatorcontrib><creatorcontrib>Huang, Fuzhi</creatorcontrib><collection>CrossRef</collection><jtitle>Science China materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lin, Zhipeng</au><au>Li, Jing</au><au>Li, Hengyi</au><au>Mo, Yanping</au><au>Pan, Junye</au><au>Wang, Chao</au><au>Zhang, Xiao-Li</au><au>Bu, Tongle</au><au>Zhong, Jie</au><au>Cheng, Yi-Bing</au><au>Huang, Fuzhi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A novel dopant for spiro-OMeTAD towards efficient and stable perovskite solar cells</atitle><jtitle>Science China materials</jtitle><stitle>Sci. China Mater</stitle><date>2021-12-01</date><risdate>2021</risdate><volume>64</volume><issue>12</issue><spage>2915</spage><epage>2925</epage><pages>2915-2925</pages><issn>2095-8226</issn><eissn>2199-4501</eissn><abstract>2,2′,7,7′-tetrakis-(
N
,
N
-di-4-methoxyphenylamino)-9,9′-spirobifluorene (spiro-OMeTAD), as the most common used hole transport material (HTM), plays a significant role in the normal structured (n-i-p) high-efficiency perovskite solar cells (PSCs). In general, it is prepared by a halogen solvent (chlorobenzene, CBZ) and needs an ion dopant (lithium bis (trifluoromethanesulfonyl)imide, Li-TFSI) to improve its conductivity and hole mobility. However, such a halogen solvent is not environmentally friendly and the widely used Li-TFSI dopant would affect the stability of PSCs. Herein, we develop a non-halogen solvent—tetrahydrofuran (THF)-prepared spiro-OMeTAD solution with a new p-type dopant, potassium bis(fluorosulfonyl)imide (K-FSI), to apply into PSCs. By this strategy, high-hole-mobility spiro-OMeTAD film is achieved. Meanwhile, the potassium ions introduced by diffusion into perovskite surface passivate the interfacial defects. Therefore, a hysteresis-free champion PSC with an efficiency of 21.02% is obtained, along with significantly improved stability against illumination and ambient conditions. This work provides a new strategy for HTMs toward hysteresis-free high-efficiency and stable PSCs by substituting dopants.</abstract><cop>Beijing</cop><pub>Science China Press</pub><doi>10.1007/s40843-021-1705-8</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Chemistry and Materials Science Chemistry/Food Science Chlorobenzene Dopants Efficiency Hole mobility Hysteresis Lithium Materials Science Perovskites Photovoltaic cells Potassium Solar cells Solvents Stability Tetrahydrofuran |
| title | A novel dopant for spiro-OMeTAD towards efficient and stable perovskite solar cells |
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