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dc.contributor.authorSun, Hua
dc.contributor.authorSong, Xin
dc.contributor.authorXie, Jian
dc.contributor.authorSun, Po
dc.contributor.authorGu, Peiyang
dc.contributor.authorLiu, Chang Mei
dc.contributor.authorChen, Fei
dc.contributor.authorZhang, Qi Chun
dc.contributor.authorChen, Zhi-Kuan
dc.contributor.authorHuang, Wei
dc.date.accessioned2017-08-17T06:37:53Z
dc.date.available2017-08-17T06:37:53Z
dc.date.issued2017-08-28
dc.identifier.citationSun H, Song X, Xie J, Sun P, Gu P, et al. (2017) PDI Derivative through Fine-Tuning Molecular Structure for Fullerene-Free Organic Solar Cells. ACS Applied Materials & Interfaces. Available: http://dx.doi.org/10.1021/acsami.7b08282.
dc.identifier.issn1944-8244
dc.identifier.issn1944-8252
dc.identifier.doi10.1021/acsami.7b08282
dc.identifier.urihttp://hdl.handle.net/10754/625355
dc.description.abstractA perylenediimide (PDI)-based small molecular (SM) acceptor with both an extended π-conjugation and a three dimensional structure concurrently is critical for achieving high performance PDI-based fullerene-free organic solar cells (OSCs). In this work, we designed and synthesized a novel PDI-based SM acceptor possessing both characteristics by fusing PDI units with a spiro core of 4,4’-spirobi[cyclopenta[2,1-b;3,4-b’]dithiophene(SCPDT) through the -position of the thiophene rings. An enhanced strong absorption in the range of 350–520 nm and arisen LUMO energy level of FSP was observed, compared with previous reported acceptor SCPDT-PDI4, in which the PDI units and SCPDT are not fused. OSCs based on PTB7-Th donor and FSP acceptor were fabricated and achieved a power conversion efficiency of up to 8.89% with DPE as an additive. Efficient and complementary photo absorption, favorable phase separation and balanced carrier mobilites in the blend film account for the high photovoltaic performance. This study offers an effective strategy to design high performance PDI-based acceptors.
dc.description.sponsorshipThe authors thank the National Basic Research Program of China (Fundamental Studies of Perovskite Solar Cells 2015CB932200), National Natural Science Foundation of China (Nos.51373076, 61605075, 91433118), and SICAM Scholarship by Jiangsu National Synergetic Innovation Center for Advanced Materials for financial support. Q.Z. acknowledges financial support from AcRF Tier 1 (RG8/16, RG133/14 and RG 13/15), Singapore.
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acsami.7b08282
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acsami.7b08282.
dc.subjectPerylenediimide
dc.subjectNon-fullerene acceptor
dc.subjectSmall molecules
dc.subject3D structure
dc.subjectOrganic solar cells
dc.subjectPower conversion efficiency
dc.titlePDI Derivative through Fine-Tuning Molecular Structure for Fullerene-Free Organic Solar Cells
dc.typeArticle
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalACS Applied Materials & Interfaces
dc.eprint.versionPost-print
dc.contributor.institutionSchool of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
dc.contributor.institutionKey Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816
dc.contributor.institutionDivision of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore
kaust.personSong, Xin
refterms.dateFOA2018-08-10T00:00:00Z
dc.date.published-online2017-08-28
dc.date.published-print2017-09-06


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