Energy level modulation of non-fullerene acceptors enables efficient organic solar cells with small energy loss
Two new non-fullerene (NF) acceptors, namely BDTIT-M and BDTThIT-M, were rationally designed to optimize the energy levels and optical bandgap. BDTIT-M is derived by changing the end-group of NFBDT into slightly weak DCI-M, and BDTThIT-M is obtained by adding two conjugated thiophene side-chains int...
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| Veröffentlicht in: | Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2018, Vol.6 (6), p.2468-2475 |
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| container_title | Journal of materials chemistry. A, Materials for energy and sustainability |
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| creator | An, Qiaoshi Gao, Wei Zhang, Fujun Wang, Jian Zhang, Miao Wu, Kailong Ma, Xiaoling Hu, Zhenghao Jiao, Chaoqun Yang, Chuluo |
| description | Two new non-fullerene (NF) acceptors, namely BDTIT-M and BDTThIT-M, were rationally designed to optimize the energy levels and optical bandgap. BDTIT-M is derived by changing the end-group of NFBDT into slightly weak DCI-M, and BDTThIT-M is obtained by adding two conjugated thiophene side-chains into a ladder-type core of BDTIT-M. By incorporating with the polymer donor PBDB-T, BDTIT-M based organic solar cells (OSCs) deliver a higher PCE of 11.31% compared to that of NFBDT based cells, which is mainly attributed to the increased
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and FF. A higher PCE of 12.12% with a small energy loss of ∼0.588 eV is achieved compared with BDTThIT-M based OSCs, benefiting from the elevated LUMO level, narrowed bandgap, and enhanced absorption coefficient and electron mobility of BDTThIT-M compared with BDTIT-M. The combination of a methyl-modified end-group and conjugated side-chain should be an efficient strategy to elevate the LUMO and HOMO levels with different amplitudes for realizing simultaneous improvement in
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| doi_str_mv | 10.1039/C7TA10763C |
| format | Article |
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V
OC
and FF. A higher PCE of 12.12% with a small energy loss of ∼0.588 eV is achieved compared with BDTThIT-M based OSCs, benefiting from the elevated LUMO level, narrowed bandgap, and enhanced absorption coefficient and electron mobility of BDTThIT-M compared with BDTIT-M. The combination of a methyl-modified end-group and conjugated side-chain should be an efficient strategy to elevate the LUMO and HOMO levels with different amplitudes for realizing simultaneous improvement in
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OC
and
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.</description><identifier>ISSN: 2050-7488</identifier><identifier>EISSN: 2050-7496</identifier><identifier>DOI: 10.1039/C7TA10763C</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Absorptivity ; Electron mobility ; Energy ; Energy levels ; Energy loss ; Fullerenes ; Molecular orbitals ; Photovoltaic cells ; Solar cells</subject><ispartof>Journal of materials chemistry. A, Materials for energy and sustainability, 2018, Vol.6 (6), p.2468-2475</ispartof><rights>Copyright Royal Society of Chemistry 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c298t-2264d1bd0a7fdf67481f89d7a4fad50ea6a0b0e86509725c2be67124824ed1773</citedby><cites>FETCH-LOGICAL-c298t-2264d1bd0a7fdf67481f89d7a4fad50ea6a0b0e86509725c2be67124824ed1773</cites><orcidid>0000-0003-2829-0735 ; 0000-0001-9337-3460</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,4024,27923,27924,27925</link.rule.ids></links><search><creatorcontrib>An, Qiaoshi</creatorcontrib><creatorcontrib>Gao, Wei</creatorcontrib><creatorcontrib>Zhang, Fujun</creatorcontrib><creatorcontrib>Wang, Jian</creatorcontrib><creatorcontrib>Zhang, Miao</creatorcontrib><creatorcontrib>Wu, Kailong</creatorcontrib><creatorcontrib>Ma, Xiaoling</creatorcontrib><creatorcontrib>Hu, Zhenghao</creatorcontrib><creatorcontrib>Jiao, Chaoqun</creatorcontrib><creatorcontrib>Yang, Chuluo</creatorcontrib><title>Energy level modulation of non-fullerene acceptors enables efficient organic solar cells with small energy loss</title><title>Journal of materials chemistry. A, Materials for energy and sustainability</title><description>Two new non-fullerene (NF) acceptors, namely BDTIT-M and BDTThIT-M, were rationally designed to optimize the energy levels and optical bandgap. BDTIT-M is derived by changing the end-group of NFBDT into slightly weak DCI-M, and BDTThIT-M is obtained by adding two conjugated thiophene side-chains into a ladder-type core of BDTIT-M. By incorporating with the polymer donor PBDB-T, BDTIT-M based organic solar cells (OSCs) deliver a higher PCE of 11.31% compared to that of NFBDT based cells, which is mainly attributed to the increased
V
OC
and FF. A higher PCE of 12.12% with a small energy loss of ∼0.588 eV is achieved compared with BDTThIT-M based OSCs, benefiting from the elevated LUMO level, narrowed bandgap, and enhanced absorption coefficient and electron mobility of BDTThIT-M compared with BDTIT-M. The combination of a methyl-modified end-group and conjugated side-chain should be an efficient strategy to elevate the LUMO and HOMO levels with different amplitudes for realizing simultaneous improvement in
V
OC
and
J
SC
.</description><subject>Absorptivity</subject><subject>Electron mobility</subject><subject>Energy</subject><subject>Energy levels</subject><subject>Energy loss</subject><subject>Fullerenes</subject><subject>Molecular orbitals</subject><subject>Photovoltaic cells</subject><subject>Solar cells</subject><issn>2050-7488</issn><issn>2050-7496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNpFUMtKAzEUDaJg0W78goA7YfQmM5PHspT6gIKbuh4ymZs6JU1qMqP07x2p6N2cuzgvDiE3DO4ZlPphKTcLBlKUyzMy41BDISstzv9-pS7JPOcdTKcAhNYzElcB0_ZIPX6ip_vYjd4MfQw0OhpiKNzoPSYMSI21eBhiyhSDaT1O6FxvewwDjWlrQm9pjt4katH7TL_64Z3mvfF-EpwyYs7X5MIZn3H-i1fk7XG1WT4X69enl-ViXViu1VBwLqqOtR0Y6Tonpu7MKd1JUznT1YBGGGgBlahBS15b3qKQjFeKV9gxKcsrcnvyPaT4MWIeml0cU5giGw4MlFZ1VU-suxPLpqlbQtccUr836dgwaH42bf43Lb8Bd4VqMg</recordid><startdate>2018</startdate><enddate>2018</enddate><creator>An, Qiaoshi</creator><creator>Gao, Wei</creator><creator>Zhang, Fujun</creator><creator>Wang, Jian</creator><creator>Zhang, Miao</creator><creator>Wu, Kailong</creator><creator>Ma, Xiaoling</creator><creator>Hu, Zhenghao</creator><creator>Jiao, Chaoqun</creator><creator>Yang, Chuluo</creator><general>Royal Society of Chemistry</general><scope>AAYXX</scope><scope>CITATION</scope><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><orcidid>https://orcid.org/0000-0003-2829-0735</orcidid><orcidid>https://orcid.org/0000-0001-9337-3460</orcidid></search><sort><creationdate>2018</creationdate><title>Energy level modulation of non-fullerene acceptors enables efficient organic solar cells with small energy loss</title><author>An, Qiaoshi ; Gao, Wei ; Zhang, Fujun ; Wang, Jian ; Zhang, Miao ; Wu, Kailong ; Ma, Xiaoling ; Hu, Zhenghao ; Jiao, Chaoqun ; Yang, Chuluo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c298t-2264d1bd0a7fdf67481f89d7a4fad50ea6a0b0e86509725c2be67124824ed1773</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Absorptivity</topic><topic>Electron mobility</topic><topic>Energy</topic><topic>Energy levels</topic><topic>Energy loss</topic><topic>Fullerenes</topic><topic>Molecular orbitals</topic><topic>Photovoltaic cells</topic><topic>Solar cells</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>An, Qiaoshi</creatorcontrib><creatorcontrib>Gao, Wei</creatorcontrib><creatorcontrib>Zhang, Fujun</creatorcontrib><creatorcontrib>Wang, Jian</creatorcontrib><creatorcontrib>Zhang, Miao</creatorcontrib><creatorcontrib>Wu, Kailong</creatorcontrib><creatorcontrib>Ma, Xiaoling</creatorcontrib><creatorcontrib>Hu, Zhenghao</creatorcontrib><creatorcontrib>Jiao, Chaoqun</creatorcontrib><creatorcontrib>Yang, Chuluo</creatorcontrib><collection>CrossRef</collection><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. A, Materials for energy and sustainability</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>An, Qiaoshi</au><au>Gao, Wei</au><au>Zhang, Fujun</au><au>Wang, Jian</au><au>Zhang, Miao</au><au>Wu, Kailong</au><au>Ma, Xiaoling</au><au>Hu, Zhenghao</au><au>Jiao, Chaoqun</au><au>Yang, Chuluo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Energy level modulation of non-fullerene acceptors enables efficient organic solar cells with small energy loss</atitle><jtitle>Journal of materials chemistry. A, Materials for energy and sustainability</jtitle><date>2018</date><risdate>2018</risdate><volume>6</volume><issue>6</issue><spage>2468</spage><epage>2475</epage><pages>2468-2475</pages><issn>2050-7488</issn><eissn>2050-7496</eissn><abstract>Two new non-fullerene (NF) acceptors, namely BDTIT-M and BDTThIT-M, were rationally designed to optimize the energy levels and optical bandgap. BDTIT-M is derived by changing the end-group of NFBDT into slightly weak DCI-M, and BDTThIT-M is obtained by adding two conjugated thiophene side-chains into a ladder-type core of BDTIT-M. By incorporating with the polymer donor PBDB-T, BDTIT-M based organic solar cells (OSCs) deliver a higher PCE of 11.31% compared to that of NFBDT based cells, which is mainly attributed to the increased
V
OC
and FF. A higher PCE of 12.12% with a small energy loss of ∼0.588 eV is achieved compared with BDTThIT-M based OSCs, benefiting from the elevated LUMO level, narrowed bandgap, and enhanced absorption coefficient and electron mobility of BDTThIT-M compared with BDTIT-M. The combination of a methyl-modified end-group and conjugated side-chain should be an efficient strategy to elevate the LUMO and HOMO levels with different amplitudes for realizing simultaneous improvement in
V
OC
and
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.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/C7TA10763C</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0003-2829-0735</orcidid><orcidid>https://orcid.org/0000-0001-9337-3460</orcidid></addata></record> |
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| source | Royal Society Of Chemistry Journals |
| subjects | Absorptivity Electron mobility Energy Energy levels Energy loss Fullerenes Molecular orbitals Photovoltaic cells Solar cells |
| title | Energy level modulation of non-fullerene acceptors enables efficient organic solar cells with small energy loss |
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