Push-Pull Type Porphyrin Based Sensitizers: The Effect of Donor Structure on the Light-Harvesting Ability and Photovoltaic Performance

Handle URI:
http://hdl.handle.net/10754/558565
Title:
Push-Pull Type Porphyrin Based Sensitizers: The Effect of Donor Structure on the Light-Harvesting Ability and Photovoltaic Performance
Authors:
Qi, Qingbiao; Li, Renzhi; Luo, Jie; Zheng, Bin; Huang, Kuo-Wei ( 0000-0003-1900-2658 ) ; Wang, Peng; Wu, Jishan
Abstract:
Push-pull type porphyrin-based sensitizers have become promising candidates for high-efficiency dye sensitized solar cells (DSCs). It is of importance to understand the fundamental structure-physical property-photovoltaic performance relationships by varying the donor and acceptor moieties. In this work, two new porphyrin-based sensitizers, WW-7 and WW-8, were synthesized and compared with the known sensitizer YD20. All the three dyes have the same porphyrin core and acceptor group (ethynylbenzoic acid) but their donor groups vary from the triphenylamine in YD20 to meso-diphenylaminoanthracene in WW-7 to N-phenyl carbazole in WW-8. Co(II/III)-based DSC device characterizations revealed that WW-7 showed enhanced light harvesting ability in comparison to YD20 with improved incident photon-to-collected electron conversion efficiencies (IPCEs). As a result, WW-7 displayed much higher short circuit current (Jsc: 13.54 mA cm-2) and open-circuit voltage (Voc: 0.829 V), with a power conversion efficiency (η) as high as 7.7%. Under the same conditions, YD20 cell exhibited a power conversion efficiency of 6.6% and the dye WW-8 showed even lower efficiency (η = 4.6%). Detailed physical measurements and theoretic calculations were conducted to understand the difference and reveal how three different donor structures affect their molecular orbital profile, light-harvesting ability, energy level alignment, and eventually the photovoltaic performance.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; KAUST Catalysis Center (KCC)
Citation:
Push-Pull Type Porphyrin Based Sensitizers: The Effect of Donor Structure on the Light-Harvesting Ability and Photovoltaic Performance 2015 Dyes and Pigments
Publisher:
Elsevier BV
Journal:
Dyes and Pigments
Issue Date:
23-Jun-2015
DOI:
10.1016/j.dyepig.2015.06.019
Type:
Article
ISSN:
01437208
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S0143720815002375
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorQi, Qingbiaoen
dc.contributor.authorLi, Renzhien
dc.contributor.authorLuo, Jieen
dc.contributor.authorZheng, Binen
dc.contributor.authorHuang, Kuo-Weien
dc.contributor.authorWang, Pengen
dc.contributor.authorWu, Jishanen
dc.date.accessioned2015-06-28T13:35:16Zen
dc.date.available2015-06-28T13:35:16Zen
dc.date.issued2015-06-23en
dc.identifier.citationPush-Pull Type Porphyrin Based Sensitizers: The Effect of Donor Structure on the Light-Harvesting Ability and Photovoltaic Performance 2015 Dyes and Pigmentsen
dc.identifier.issn01437208en
dc.identifier.doi10.1016/j.dyepig.2015.06.019en
dc.identifier.urihttp://hdl.handle.net/10754/558565en
dc.description.abstractPush-pull type porphyrin-based sensitizers have become promising candidates for high-efficiency dye sensitized solar cells (DSCs). It is of importance to understand the fundamental structure-physical property-photovoltaic performance relationships by varying the donor and acceptor moieties. In this work, two new porphyrin-based sensitizers, WW-7 and WW-8, were synthesized and compared with the known sensitizer YD20. All the three dyes have the same porphyrin core and acceptor group (ethynylbenzoic acid) but their donor groups vary from the triphenylamine in YD20 to meso-diphenylaminoanthracene in WW-7 to N-phenyl carbazole in WW-8. Co(II/III)-based DSC device characterizations revealed that WW-7 showed enhanced light harvesting ability in comparison to YD20 with improved incident photon-to-collected electron conversion efficiencies (IPCEs). As a result, WW-7 displayed much higher short circuit current (Jsc: 13.54 mA cm-2) and open-circuit voltage (Voc: 0.829 V), with a power conversion efficiency (η) as high as 7.7%. Under the same conditions, YD20 cell exhibited a power conversion efficiency of 6.6% and the dye WW-8 showed even lower efficiency (η = 4.6%). Detailed physical measurements and theoretic calculations were conducted to understand the difference and reveal how three different donor structures affect their molecular orbital profile, light-harvesting ability, energy level alignment, and eventually the photovoltaic performance.en
dc.publisherElsevier BVen
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0143720815002375en
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Dyes and Pigments. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Dyes and Pigments,23 June 2015. DOI: 10.1016/j.dyepig.2015.06.019en
dc.subjectsolar cellen
dc.subjectcarbazoleen
dc.subjectanthraceneen
dc.subjectporphyrinen
dc.subjectPush-pullen
dc.titlePush-Pull Type Porphyrin Based Sensitizers: The Effect of Donor Structure on the Light-Harvesting Ability and Photovoltaic Performanceen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.identifier.journalDyes and Pigmentsen
dc.eprint.versionPost-printen
dc.contributor.institutionDepartment of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singaporeen
dc.contributor.institutionState Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, Chinaen
dc.contributor.institutionInstitute of Materials Research and Engineering, A*STAR, 3 Research Link, Singapore, 117602en
kaust.authorZheng, Binen
kaust.authorHuang, Kuo-Weien
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