Low temperature aqueous electrodeposited TiO(x) thin films as electron extraction layer for efficient inverted organic solar cells.
Identifieur interne : 000122 ( Main/Exploration ); précédent : 000121; suivant : 000123Low temperature aqueous electrodeposited TiO(x) thin films as electron extraction layer for efficient inverted organic solar cells.
Auteurs : RBID : pubmed:24484299Abstract
Organic solar cells based on poly(3-hexylthiophene) and [6,6]-phenyl-C61-butyric acid methyl ester were fabricated with electrodeposited TiOx electron extraction layers 5-180 nm thick. Electrodeposition under ambient conditions is an attractive, facile and viable approach to prepare metal oxide interfacial layers. The TiOx films obtained displayed a linear relationship between thickness and deposition time when fabricated under ambient conditions using an aqueous air stable peroxotitanium precursor. The precursor solution was prepared from titanium isopropoxide using a chelate process, which allowed water to be used as solvent due to considerably decreased sensitivity of the precursor solution towards hydrolysis. Highly conformal TiOx films, typically observed with vacuum deposition techniques, were obtained on the indium tin oxide substrate upon electrogeneration of OH(-) ions using H2O2 additive. Conversely, significantly rougher films with spherical growths were obtained using NO3(-) additives. Low temperature annealing at 200 °C in air was found to greatly improve purity and O stoichiometry of the TiOx films, enabling efficient devices incorporating the electrodeposited TiOx to be made. Using MoOx as the hole extraction layer, the maximum power conversion efficiency obtained was 3.8% (Voc = 610 mV; Jsc = 10.6 mA/cm(2); FF = 59%) under simulated 100 mW/cm(2) (AM1.5G) solar irradiation, whereas an efficiency of 3.4% was achieved with fully solution processed interfacial layers comprising the electrodeposited TiOx films and a surfactant-modified PEDOT:PSS hole extraction layer.
DOI: 10.1021/am405193r
PubMed: 24484299
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Low temperature aqueous electrodeposited TiO(x) thin films as electron extraction layer for efficient inverted organic solar cells.</title><author><name sortKey="Wong, Kim Hai" uniqKey="Wong K">Kim Hai Wong</name><affiliation wicri:level="1"><nlm:affiliation>Department of Mechanical Engineering, National University of Singapore , 9 Engineering Drive 1, Singapore 117576, Singapore.</nlm:affiliation><country xml:lang="fr">Singapour</country><wicri:regionArea>Department of Mechanical Engineering, National University of Singapore , 9 Engineering Drive 1, Singapore 117576</wicri:regionArea></affiliation></author><author><name sortKey="Mason, Chad William" uniqKey="Mason C">Chad William Mason</name></author><author><name sortKey="Devaraj, Sappani" uniqKey="Devaraj S">Sappani Devaraj</name></author><author><name sortKey="Ouyang, Jianyong" uniqKey="Ouyang J">Jianyong Ouyang</name></author><author><name sortKey="Balaya, Palani" uniqKey="Balaya P">Palani Balaya</name></author></titleStmt><publicationStmt><date when="2014">2014</date><idno type="doi">10.1021/am405193r</idno><idno type="RBID">pubmed:24484299</idno><idno type="pmid">24484299</idno><idno type="wicri:Area/Main/Corpus">000189</idno><idno type="wicri:Area/Main/Curation">000189</idno><idno type="wicri:Area/Main/Exploration">000122</idno></publicationStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Organic solar cells based on poly(3-hexylthiophene) and [6,6]-phenyl-C61-butyric acid methyl ester were fabricated with electrodeposited TiOx electron extraction layers 5-180 nm thick. Electrodeposition under ambient conditions is an attractive, facile and viable approach to prepare metal oxide interfacial layers. The TiOx films obtained displayed a linear relationship between thickness and deposition time when fabricated under ambient conditions using an aqueous air stable peroxotitanium precursor. The precursor solution was prepared from titanium isopropoxide using a chelate process, which allowed water to be used as solvent due to considerably decreased sensitivity of the precursor solution towards hydrolysis. Highly conformal TiOx films, typically observed with vacuum deposition techniques, were obtained on the indium tin oxide substrate upon electrogeneration of OH(-) ions using H2O2 additive. Conversely, significantly rougher films with spherical growths were obtained using NO3(-) additives. Low temperature annealing at 200 °C in air was found to greatly improve purity and O stoichiometry of the TiOx films, enabling efficient devices incorporating the electrodeposited TiOx to be made. Using MoOx as the hole extraction layer, the maximum power conversion efficiency obtained was 3.8% (Voc = 610 mV; Jsc = 10.6 mA/cm(2); FF = 59%) under simulated 100 mW/cm(2) (AM1.5G) solar irradiation, whereas an efficiency of 3.4% was achieved with fully solution processed interfacial layers comprising the electrodeposited TiOx films and a surfactant-modified PEDOT:PSS hole extraction layer.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="In-Process"><PMID Version="1">24484299</PMID><DateCreated><Year>2014</Year><Month>02</Month><Day>28</Day></DateCreated><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1944-8252</ISSN><JournalIssue CitedMedium="Internet"><Volume>6</Volume><Issue>4</Issue><PubDate><Year>2014</Year><Month>Feb</Month><Day>26</Day></PubDate></JournalIssue><Title>ACS applied materials & interfaces</Title><ISOAbbreviation>ACS Appl Mater Interfaces</ISOAbbreviation></Journal><ArticleTitle>Low temperature aqueous electrodeposited TiO(x) thin films as electron extraction layer for efficient inverted organic solar cells.</ArticleTitle><Pagination><MedlinePgn>2679-85</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1021/am405193r</ELocationID><Abstract><AbstractText>Organic solar cells based on poly(3-hexylthiophene) and [6,6]-phenyl-C61-butyric acid methyl ester were fabricated with electrodeposited TiOx electron extraction layers 5-180 nm thick. Electrodeposition under ambient conditions is an attractive, facile and viable approach to prepare metal oxide interfacial layers. The TiOx films obtained displayed a linear relationship between thickness and deposition time when fabricated under ambient conditions using an aqueous air stable peroxotitanium precursor. The precursor solution was prepared from titanium isopropoxide using a chelate process, which allowed water to be used as solvent due to considerably decreased sensitivity of the precursor solution towards hydrolysis. Highly conformal TiOx films, typically observed with vacuum deposition techniques, were obtained on the indium tin oxide substrate upon electrogeneration of OH(-) ions using H2O2 additive. Conversely, significantly rougher films with spherical growths were obtained using NO3(-) additives. Low temperature annealing at 200 °C in air was found to greatly improve purity and O stoichiometry of the TiOx films, enabling efficient devices incorporating the electrodeposited TiOx to be made. Using MoOx as the hole extraction layer, the maximum power conversion efficiency obtained was 3.8% (Voc = 610 mV; Jsc = 10.6 mA/cm(2); FF = 59%) under simulated 100 mW/cm(2) (AM1.5G) solar irradiation, whereas an efficiency of 3.4% was achieved with fully solution processed interfacial layers comprising the electrodeposited TiOx films and a surfactant-modified PEDOT:PSS hole extraction layer.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Wong</LastName><ForeName>Kim Hai</ForeName><Initials>KH</Initials><Affiliation>Department of Mechanical Engineering, National University of Singapore , 9 Engineering Drive 1, Singapore 117576, Singapore.</Affiliation></Author><Author ValidYN="Y"><LastName>Mason</LastName><ForeName>Chad William</ForeName><Initials>CW</Initials></Author><Author ValidYN="Y"><LastName>Devaraj</LastName><ForeName>Sappani</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Ouyang</LastName><ForeName>Jianyong</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Balaya</LastName><ForeName>Palani</ForeName><Initials>P</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Journal Article</PublicationType><PublicationType>Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2014</Year><Month>02</Month><Day>10</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>ACS Appl Mater Interfaces</MedlineTA><NlmUniqueID>101504991</NlmUniqueID><ISSNLinking>1944-8244</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="aheadofprint"><Year>2014</Year><Month>2</Month><Day>10</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2014</Year><Month>2</Month><Day>4</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2014</Year><Month>2</Month><Day>4</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2014</Year><Month>2</Month><Day>4</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.1021/am405193r</ArticleId><ArticleId IdType="pubmed">24484299</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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