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Conference Paper: Nanocomposite solar cells - Influence of particle concentration, size and shape on the device performance

TitleNanocomposite solar cells - Influence of particle concentration, size and shape on the device performance
Authors
KeywordsNanocomposite
Organic solar cells
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
Proceedings Of Spie - The International Society For Optical Engineering, 2004, v. 5520, p. 176-183 How to Cite?
AbstractSolar cells based on poly(3-hexylthiophene) (P3HT) :TiO2 nanocomposite films were investigated. We studied the influence of the nanoparticle concentrations and different nanostructures (spherical particles with size ∼5 nm and ∼20-40 nm, and rods with diameter ∼10 nm and length ∼40 nm) on the performance of the nanocomposite solar cells. PL quenching and improved external quantum efficiency (EQE) was observed for all the nanocomposite devices compared to that of pristine P3HT solar cells. However, TiO2 (∼5 nm spheres) and TiO2 rods showed only small improvement in EQE. The small improvement for the 5 nm TiO 2 spheres was attributed to the lack of connectivity of nanoparticles for electron conduction. Therefore, the charge collection efficiency was limited. For TiO2 rods, the tendency of the rods to lie in the plane of substrates also limited the charge conduction and collection in the direction perpendicular to the substrates. Therefore, the improvement of the devices made by these nanoparticles was limited. For TiO2 (20-40 nm spheres) with optimal concentration, external quantum efficiency up to 15% and AM1 power conversion efficiency of 0.42% were obtained. The improvement in the efficiency was related to the improved morphology of the film and was attributed to the formation of percolation paths of TiO2 for electron conduction.
Persistent Identifierhttp://hdl.handle.net/10722/45706
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorKwong, CYen_HK
dc.contributor.authorDjurišić, ABen_HK
dc.contributor.authorChui, PCen_HK
dc.contributor.authorChan, WKen_HK
dc.date.accessioned2007-10-30T06:33:10Z-
dc.date.available2007-10-30T06:33:10Z-
dc.date.issued2004en_HK
dc.identifier.citationProceedings Of Spie - The International Society For Optical Engineering, 2004, v. 5520, p. 176-183en_HK
dc.identifier.issn0277-786Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/45706-
dc.description.abstractSolar cells based on poly(3-hexylthiophene) (P3HT) :TiO2 nanocomposite films were investigated. We studied the influence of the nanoparticle concentrations and different nanostructures (spherical particles with size ∼5 nm and ∼20-40 nm, and rods with diameter ∼10 nm and length ∼40 nm) on the performance of the nanocomposite solar cells. PL quenching and improved external quantum efficiency (EQE) was observed for all the nanocomposite devices compared to that of pristine P3HT solar cells. However, TiO2 (∼5 nm spheres) and TiO2 rods showed only small improvement in EQE. The small improvement for the 5 nm TiO 2 spheres was attributed to the lack of connectivity of nanoparticles for electron conduction. Therefore, the charge collection efficiency was limited. For TiO2 rods, the tendency of the rods to lie in the plane of substrates also limited the charge conduction and collection in the direction perpendicular to the substrates. Therefore, the improvement of the devices made by these nanoparticles was limited. For TiO2 (20-40 nm spheres) with optimal concentration, external quantum efficiency up to 15% and AM1 power conversion efficiency of 0.42% were obtained. The improvement in the efficiency was related to the improved morphology of the film and was attributed to the formation of percolation paths of TiO2 for electron conduction.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. 176-183 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.subjectNanocompositeen_HK
dc.subjectOrganic solar cellsen_HK
dc.titleNanocomposite solar cells - Influence of particle concentration, size and shape on the device performanceen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0277-786X&volume=5520&spage=176&epage=183&date=2004&atitle=Nanocomposite+solar+cells:+influence+of+particle+concentration,+size,+and+shape+on+the+device+performanceen_HK
dc.identifier.emailDjurišić, AB: dalek@hku.hken_HK
dc.identifier.emailChui, PC: pcchui@hkucc.hku.hken_HK
dc.identifier.emailChan, WK: waichan@hku.hken_HK
dc.identifier.authorityDjurišić, AB=rp00690en_HK
dc.identifier.authorityChui, PC=rp00114en_HK
dc.identifier.authorityChan, WK=rp00667en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1117/12.558683en_HK
dc.identifier.scopuseid_2-s2.0-13444283781en_HK
dc.identifier.hkuros97662-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-13444283781&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume5520en_HK
dc.identifier.spage176en_HK
dc.identifier.epage183en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridKwong, CY=35917741900en_HK
dc.identifier.scopusauthoridDjurišić, AB=7004904830en_HK
dc.identifier.scopusauthoridChui, PC=13309913400en_HK
dc.identifier.scopusauthoridChan, WK=13310083000en_HK

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