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Energy levels modulation of small molecule acceptors for polymer solar cells
Liu, Ransheng1; Du, Zurong2; Wen, Shuguang2; Wu, Yao2; Zhu, Dangqiang2; Yang, Renqiang2
Source PublicationSYNTHETIC METALS
AbstractNon-fullerene acceptor exhibits very promising prospect for the development of polymer solar cells (PSCs). It is necessary to carefully investigate the energy level matching between donor and acceptor to optimize the photovoltaic performance. In this paper, we have designed and synthesized two novel planar A-D-A type small molecular acceptors of IDT-RCN and IDT-CA with 2-(1,1-dicyanomethylene)rhodanine and cyanoacetate as the end groups, respectively. Compared to IDT-RCN with stronger electron-deficient end group, IDT-CA displayed 0.15 eV increase in LUMO level while almost the same HOMO level. PSC devices based on P3HT:IDT-CA show a power conversion efficiency (PCE) of 4.19% with Voc of 0.84 V, Jsc of 7.77 mA cm(-2) and FF of 0.64, which is much higher than that of P3HT:IDT-RCN mainly due to the higher Voc value. This work indicates that end group modification is important for the modulation of PSC device parameters.
KeywordPolymer Solar Cell Small Molecule Acceptor Energy Level Modulation Power Conversion Efficiency
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
Indexed BySCI
WOS Research AreaMaterials Science ; Physics ; Polymer Science
Funding OrganizationMinistry of Science and Technology of China(2016YFE0115000) ; National Natural Science Foundation of China(51573205 ; Department of Science and Technology of Shandong Province(2015GGX104007) ; 51773220 ; 21604092)
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Condensed Matter ; Polymer Science
WOS IDWOS:000424176500017
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Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorWen, Shuguang; Yang, Renqiang
Affiliation1.Shandong Univ Technol, Sch Chem & Chem Engn, Ziho 255000, Peoples R China
2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China
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GB/T 7714
Liu, Ransheng,Du, Zurong,Wen, Shuguang,et al. Energy levels modulation of small molecule acceptors for polymer solar cells[J]. SYNTHETIC METALS,2018,235:131-135.
APA Liu, Ransheng,Du, Zurong,Wen, Shuguang,Wu, Yao,Zhu, Dangqiang,&Yang, Renqiang.(2018).Energy levels modulation of small molecule acceptors for polymer solar cells.SYNTHETIC METALS,235,131-135.
MLA Liu, Ransheng,et al."Energy levels modulation of small molecule acceptors for polymer solar cells".SYNTHETIC METALS 235(2018):131-135.
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