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dc.contributor.authorLuo, Jie
dc.contributor.authorZhang, Jing
dc.contributor.authorHuang, Kuo-Wei
dc.contributor.authorQi, Qingbiao
dc.contributor.authorDong, Shaoqiang
dc.contributor.authorZhang, Jie
dc.contributor.authorWang, Peng
dc.contributor.authorWu, Jishan
dc.date.accessioned2016-11-03T13:23:07Z
dc.date.available2016-11-03T13:23:07Z
dc.date.issued2016
dc.identifier.citationLuo J, Zhang J, Huang K-W, Qi Q, Dong S, et al. (2016) N-Annulated perylene substituted zinc–porphyrins with different linking modes and electron acceptors for dye sensitized solar cells. J Mater Chem A 4: 8428–8434. Available: http://dx.doi.org/10.1039/c6ta02509a.
dc.identifier.issn2050-7488
dc.identifier.issn2050-7496
dc.identifier.doi10.1039/c6ta02509a
dc.identifier.urihttp://hdl.handle.net/10754/621703
dc.description.abstractThree new N-annulated perylene (NP) substituted porphyrin dyes WW-7-WW-9 with different linking modes and accepting groups were synthesized and applied in Co(ii)/(iii) based dye sensitized solar cells (DSCs). The bay-linked porphyrins WW-7 and WW-8 exhibited moderate power conversion efficiency (PCE = 4.4% and 4.8%, respectively), while the peri-linked porphyrin dye WW-9 showed a PCE up to 9.2% which is slightly lower than that of our reference dye WW-6. Detailed physical measurements (optical and electrochemical), DFT calculations, and photovoltaic characterizations were performed to understand how the structural changes affect their light-harvesting ability, molecular orbital profile, energy level alignment, and eventually the photovoltaic performance. It turned out that the lower efficiencies of the cells based on WW-7 and WW-8 could be ascribed to the weak π-conjugation between the bay-substituted NP and phenylethynyl substituted porphyrin unit. The introduction of a benzothiadiazole acceptor at the anchoring group has induced a significant red shift of the IPCE action spectra of WW-8 and WW-9, by about 90 nm and 50 nm as compared to that of WW-7 and WW-6, respectively. However, less efficient electron injection was observed. Our studies gave some insight into the important role of electronic interactions between different components when one designs a dye for high-efficiency DSCs. © The Royal Society of Chemistry 2016.
dc.description.sponsorshipJ. W. and J. Z. acknowledge financial support from A*STAR-DST joint grant (IMRE/14-2C0239). J. Z. and P. W. thank the National Science Foundation of China (No. 91233206) and the National 973 Program (2015CB932204) for financial support.
dc.publisherRoyal Society of Chemistry (RSC)
dc.relation.urlhttp://pubs.rsc.org/en/content/articlehtml/2016/ta/c6ta02509a
dc.titleN-Annulated perylene substituted zinc–porphyrins with different linking modes and electron acceptors for dye sensitized solar cells
dc.typeArticle
dc.contributor.departmentChemical Science Program
dc.contributor.departmentHomogeneous Catalysis Laboratory (HCL)
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalJ. Mater. Chem. A
dc.contributor.institutionInstitute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way, Innovis, Singapore
dc.contributor.institutionDepartment of Chemistry, Zhejiang University, Hangzhou, China
dc.contributor.institutionDepartment of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore
kaust.personHuang, Kuo-Wei


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