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Article: Long K-doped titania and titanate nanowires on ti foil and fluorine-doped tin oxide/quartz substrates for solar-cell applications

TitleLong K-doped titania and titanate nanowires on ti foil and fluorine-doped tin oxide/quartz substrates for solar-cell applications
Authors
Issue Date2007
PublisherWiley - V C H Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/home/afm
Citation
Advanced Functional Materials, 2007, v. 17 n. 4, p. 555-562 How to Cite?
AbstractPotassium-doped titania and titanate nanowires are fabricated by moisture-assisted direct oxidation of titanium. The influence of the fabrication conditions on nanowire structure and morphology is investigated. It is shown that the presence of potassium is essential for nanowire formation, while the nanowire structure and morphology are strongly dependent on the fabrication temperature. The longest nanowires (ca. 10 μm) are obtained at 650 °C. At this substrate temperature, nanowires could be produced over a large substrate area both by oxidation of the Ti foil as well as by depositing a Ti film on the substrate (quartz or fluorine-doped tin oxide (FTO)/quartz). Photovoltaic cells based on these nanowires are fabricated. The cell performance is dependent on the nanowire fabrication temperature and the substrate used, as well as on the annealing environment. Short-circuit current densities of I sc = 3.05 mA cm -2 and I sc = 4.97 mA cm -2 could be obtained for Ti foil and FTO/quartz substrates, respectively, while the corresponding power-conversion efficiencies are η = 0.93% and η = 1.88% (under AM 1.5 illumination, 100 mW cm -2; AM: air mass). © 2007 WILEY-VCH Verlag GmbH &Co. KGaA.
Persistent Identifierhttp://hdl.handle.net/10722/69838
ISSN
2015 Impact Factor: 11.382
2015 SCImago Journal Rankings: 5.210
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorCheung, KYen_HK
dc.contributor.authorYip, CTen_HK
dc.contributor.authorDjurišić, ABen_HK
dc.contributor.authorLeung, YHen_HK
dc.contributor.authorChan, WKen_HK
dc.date.accessioned2010-09-06T06:17:18Z-
dc.date.available2010-09-06T06:17:18Z-
dc.date.issued2007en_HK
dc.identifier.citationAdvanced Functional Materials, 2007, v. 17 n. 4, p. 555-562en_HK
dc.identifier.issn1616-301Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/69838-
dc.description.abstractPotassium-doped titania and titanate nanowires are fabricated by moisture-assisted direct oxidation of titanium. The influence of the fabrication conditions on nanowire structure and morphology is investigated. It is shown that the presence of potassium is essential for nanowire formation, while the nanowire structure and morphology are strongly dependent on the fabrication temperature. The longest nanowires (ca. 10 μm) are obtained at 650 °C. At this substrate temperature, nanowires could be produced over a large substrate area both by oxidation of the Ti foil as well as by depositing a Ti film on the substrate (quartz or fluorine-doped tin oxide (FTO)/quartz). Photovoltaic cells based on these nanowires are fabricated. The cell performance is dependent on the nanowire fabrication temperature and the substrate used, as well as on the annealing environment. Short-circuit current densities of I sc = 3.05 mA cm -2 and I sc = 4.97 mA cm -2 could be obtained for Ti foil and FTO/quartz substrates, respectively, while the corresponding power-conversion efficiencies are η = 0.93% and η = 1.88% (under AM 1.5 illumination, 100 mW cm -2; AM: air mass). © 2007 WILEY-VCH Verlag GmbH &Co. KGaA.en_HK
dc.languageengen_HK
dc.publisherWiley - V C H Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/home/afmen_HK
dc.relation.ispartofAdvanced Functional Materialsen_HK
dc.titleLong K-doped titania and titanate nanowires on ti foil and fluorine-doped tin oxide/quartz substrates for solar-cell applicationsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1616-301X&volume=17&spage=555&epage=562&date=2007&atitle=Long+K-doped+titania+and+titanate+nanowires+on+Ti+foil+and+fluorine-doped+tin+oxide/quartz+substrates+for+solar-cell+applicationsen_HK
dc.identifier.emailDjurišić, AB: dalek@hku.hken_HK
dc.identifier.emailChan, WK: waichan@hku.hken_HK
dc.identifier.authorityDjurišić, AB=rp00690en_HK
dc.identifier.authorityChan, WK=rp00667en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/adfm.200600508en_HK
dc.identifier.scopuseid_2-s2.0-33947227764en_HK
dc.identifier.hkuros126215en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33947227764&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume17en_HK
dc.identifier.issue4en_HK
dc.identifier.spage555en_HK
dc.identifier.epage562en_HK
dc.identifier.isiWOS:000245054900007-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridCheung, KY=25229974800en_HK
dc.identifier.scopusauthoridYip, CT=55414930300en_HK
dc.identifier.scopusauthoridDjurišić, AB=7004904830en_HK
dc.identifier.scopusauthoridLeung, YH=16042693500en_HK
dc.identifier.scopusauthoridChan, WK=13310083000en_HK

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