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Conference Paper: Fabrication of bulk heterojunction photovoltaic devices using sublimable rhenium diimine complexes as photosensitizers

TitleFabrication of bulk heterojunction photovoltaic devices using sublimable rhenium diimine complexes as photosensitizers
Authors
KeywordsPhysics
Optics
Instruments
Issue Date2004
PublisherS P I E - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/x1848.xml
Citation
Organic photovoltaics V, Denver, Colorado, USA, 4-6 August 2004, v. 5520, p. 168-175 How to Cite?
AbstractA series of chlorotricarbonyl rhenium (I) bis(phenylimino)acenaphthene (Re-DIAN-X) complexes were used as the photosensitizers for photovoltaic cells. Unlike other transition-metal-based photovoltaic sensitizers that can only be prepared by solution method, these complexes are sublimable. Compared to other rhenium diimine complexes based on bipyridine or 1,4-diaza-1,3-butadiene ligands, these complexes have lower band gaps, which can be modified easily by changing the structure of the ligand. It allows the preparation of blend of metal complexes in order to broaden the sensitization region in UV-vis absorption spectrum. One of the complexes also shows bipolar charge transport character with relatively high charge carrier mobilities in the order of 10 -3 cm2V-1s-1. Multilayer heterojunction and bulk heterojunction devices with fullerene as the electron accepting molecule were prepared. For the bulk heterojunction devices, the fill factor and power conversion efficiency under AM 1.5 simulated solar light illumination were 0.51 and 1.29 %, respectively. The effects of changing the Re-DIAN/C60 film thickness, Re-DIAN/C60 ratio and variation of ligand structures in the bulk heterojunction devices were studied. The amount of photosensitizer and electron transport molecules may strongly affect the balance between the photon absorption, exciton formation, dissociation, and charge transport processes. Atomic force microscopic images showed that the complex dispersed evenly with fullerene molecules in solid state.
Persistent Identifierhttp://hdl.handle.net/10722/45707
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorWong, HLen_HK
dc.contributor.authorCheng, KWen_HK
dc.contributor.authorMan, KKYen_HK
dc.contributor.authorKwong, CYen_HK
dc.contributor.authorChan, WKen_HK
dc.contributor.authorDjurišić, ABen_HK
dc.date.accessioned2007-10-30T06:33:11Z-
dc.date.available2007-10-30T06:33:11Z-
dc.date.issued2004en_HK
dc.identifier.citationOrganic photovoltaics V, Denver, Colorado, USA, 4-6 August 2004, v. 5520, p. 168-175en_HK
dc.identifier.issn0277-786Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/45707-
dc.description.abstractA series of chlorotricarbonyl rhenium (I) bis(phenylimino)acenaphthene (Re-DIAN-X) complexes were used as the photosensitizers for photovoltaic cells. Unlike other transition-metal-based photovoltaic sensitizers that can only be prepared by solution method, these complexes are sublimable. Compared to other rhenium diimine complexes based on bipyridine or 1,4-diaza-1,3-butadiene ligands, these complexes have lower band gaps, which can be modified easily by changing the structure of the ligand. It allows the preparation of blend of metal complexes in order to broaden the sensitization region in UV-vis absorption spectrum. One of the complexes also shows bipolar charge transport character with relatively high charge carrier mobilities in the order of 10 -3 cm2V-1s-1. Multilayer heterojunction and bulk heterojunction devices with fullerene as the electron accepting molecule were prepared. For the bulk heterojunction devices, the fill factor and power conversion efficiency under AM 1.5 simulated solar light illumination were 0.51 and 1.29 %, respectively. The effects of changing the Re-DIAN/C60 film thickness, Re-DIAN/C60 ratio and variation of ligand structures in the bulk heterojunction devices were studied. The amount of photosensitizer and electron transport molecules may strongly affect the balance between the photon absorption, exciton formation, dissociation, and charge transport processes. Atomic force microscopic images showed that the complex dispersed evenly with fullerene molecules in solid state.en_HK
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dc.languageengen_HK
dc.publisherS P I E - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/x1848.xmlen_HK
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineeringen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsS P I E - the International Society for Optical Proceedings. Copyright © S P I E - International Society for Optical Engineering.en_HK
dc.rightsCopyright 2004 Society of Photo-Optical Instrumentation Engineers. This paper was published in Organic photovoltaics V, Denver, Colorado, USA, 4-6 August 2004, v. 5520, p. 168-175 and is made available as an electronic reprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.en_HK
dc.subjectPhysicsen_HK
dc.subjectOpticsen_HK
dc.subjectInstrumentsen_HK
dc.titleFabrication of bulk heterojunction photovoltaic devices using sublimable rhenium diimine complexes as photosensitizersen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0277-786X&volume=5520&spage=168&epage=175&date=2004&atitle=Fabrication+of+bulk+heterojunction+photovoltaic+devices+using+sublimable+rhenium+diimine+complexes+as+photosensitizersen_HK
dc.identifier.emailChan, WK: waichan@hku.hken_HK
dc.identifier.emailDjurišić, AB: dalek@hku.hken_HK
dc.identifier.authorityChan, WK=rp00667en_HK
dc.identifier.authorityDjurišić, AB=rp00690en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1117/12.558680en_HK
dc.identifier.scopuseid_2-s2.0-13444304324en_HK
dc.identifier.hkuros97663-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-13444304324&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume5520en_HK
dc.identifier.spage168en_HK
dc.identifier.epage175en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridWong, HL=36920239500en_HK
dc.identifier.scopusauthoridCheng, KW=36439221300en_HK
dc.identifier.scopusauthoridMan, KKY=8051698900en_HK
dc.identifier.scopusauthoridKwong, CY=35917741900en_HK
dc.identifier.scopusauthoridChan, WK=13310083000en_HK
dc.identifier.scopusauthoridDjurišić, AB=7004904830en_HK

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