Spectral aspects of cavity tuned absorption in organic photovoltaic films.
Identifieur interne : 000A57 ( Main/Exploration ); précédent : 000A56; suivant : 000A58Spectral aspects of cavity tuned absorption in organic photovoltaic films.
Auteurs : RBID : pubmed:23187672Abstract
Concentration of light and infrared capture are two favored approaches for increasing the power conversion efficiency (PCE) of photovoltaic devices. Using optical transfer matrix formalism, we model the absorption of organic photovoltaic films as a function of active layer thickness and incident wavelength. In our simulations we consider the absorption in the optical cavity formed by the polymer bulk heterojunction active layer (AL) between the aluminum cathode and indium tin oxide (ITO) anode. We find that optical absorption can be finely tuned by adjusting the ITO thickness within a relatively narrow range, thus eliminating the need for a separate optical spacer. We also observe distinct spectral effects due to frequency pulling which results in enhanced long-wavelength absorption. Spectral sculpting can be carried out by cavity design without affecting the open circuit voltage as the spectral shifts are purely optical effects. We have experimentally verified aspects of our modeling and suggest methods to improve device design.
PubMed: 23187672
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Spectral aspects of cavity tuned absorption in organic photovoltaic films.</title><author><name sortKey="Valle, Brent" uniqKey="Valle B">Brent Valle</name><affiliation wicri:level="1"><nlm:affiliation>Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA. bmv8@case.edu</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106</wicri:regionArea></affiliation></author><author><name sortKey="Loser, Stephen" uniqKey="Loser S">Stephen Loser</name></author><author><name sortKey="Hennek, Jonathan W" uniqKey="Hennek J">Jonathan W Hennek</name></author><author><name sortKey="Degeorge, Vincent" uniqKey="Degeorge V">Vincent DeGeorge</name></author><author><name sortKey="Klosterman, Courtney" uniqKey="Klosterman C">Courtney Klosterman</name></author><author><name sortKey="Andrews, James H" uniqKey="Andrews J">James H Andrews</name></author><author><name sortKey="Singer, Kenneth D" uniqKey="Singer K">Kenneth D Singer</name></author><author><name sortKey="Marks, Tobin J" uniqKey="Marks T">Tobin J Marks</name></author></titleStmt><publicationStmt><date when="2012">2012</date><idno type="RBID">pubmed:23187672</idno><idno type="pmid">23187672</idno><idno type="wicri:Area/Main/Corpus">000916</idno><idno type="wicri:Area/Main/Curation">000916</idno><idno type="wicri:Area/Main/Exploration">000A57</idno></publicationStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Concentration of light and infrared capture are two favored approaches for increasing the power conversion efficiency (PCE) of photovoltaic devices. Using optical transfer matrix formalism, we model the absorption of organic photovoltaic films as a function of active layer thickness and incident wavelength. In our simulations we consider the absorption in the optical cavity formed by the polymer bulk heterojunction active layer (AL) between the aluminum cathode and indium tin oxide (ITO) anode. We find that optical absorption can be finely tuned by adjusting the ITO thickness within a relatively narrow range, thus eliminating the need for a separate optical spacer. We also observe distinct spectral effects due to frequency pulling which results in enhanced long-wavelength absorption. Spectral sculpting can be carried out by cavity design without affecting the open circuit voltage as the spectral shifts are purely optical effects. We have experimentally verified aspects of our modeling and suggest methods to improve device design.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="PubMed-not-MEDLINE"><PMID Version="1">23187672</PMID><DateCreated><Year>2012</Year><Month>11</Month><Day>28</Day></DateCreated><DateCompleted><Year>2013</Year><Month>05</Month><Day>09</Day></DateCompleted><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1094-4087</ISSN><JournalIssue CitedMedium="Internet"><Volume>20 Suppl 6</Volume><PubDate><Year>2012</Year><Month>Nov</Month><Day>5</Day></PubDate></JournalIssue><Title>Optics express</Title><ISOAbbreviation>Opt Express</ISOAbbreviation></Journal><ArticleTitle>Spectral aspects of cavity tuned absorption in organic photovoltaic films.</ArticleTitle><Pagination><MedlinePgn>A954-63</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1364/OE.20.00A954</ELocationID><Abstract><AbstractText>Concentration of light and infrared capture are two favored approaches for increasing the power conversion efficiency (PCE) of photovoltaic devices. Using optical transfer matrix formalism, we model the absorption of organic photovoltaic films as a function of active layer thickness and incident wavelength. In our simulations we consider the absorption in the optical cavity formed by the polymer bulk heterojunction active layer (AL) between the aluminum cathode and indium tin oxide (ITO) anode. We find that optical absorption can be finely tuned by adjusting the ITO thickness within a relatively narrow range, thus eliminating the need for a separate optical spacer. We also observe distinct spectral effects due to frequency pulling which results in enhanced long-wavelength absorption. Spectral sculpting can be carried out by cavity design without affecting the open circuit voltage as the spectral shifts are purely optical effects. We have experimentally verified aspects of our modeling and suggest methods to improve device design.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Valle</LastName><ForeName>Brent</ForeName><Initials>B</Initials><Affiliation>Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA. bmv8@case.edu</Affiliation></Author><Author ValidYN="Y"><LastName>Loser</LastName><ForeName>Stephen</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Hennek</LastName><ForeName>Jonathan W</ForeName><Initials>JW</Initials></Author><Author ValidYN="Y"><LastName>DeGeorge</LastName><ForeName>Vincent</ForeName><Initials>V</Initials></Author><Author ValidYN="Y"><LastName>Klosterman</LastName><ForeName>Courtney</ForeName><Initials>C</Initials></Author><Author ValidYN="Y"><LastName>Andrews</LastName><ForeName>James H</ForeName><Initials>JH</Initials></Author><Author ValidYN="Y"><LastName>Singer</LastName><ForeName>Kenneth D</ForeName><Initials>KD</Initials></Author><Author ValidYN="Y"><LastName>Marks</LastName><ForeName>Tobin J</ForeName><Initials>TJ</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Journal Article</PublicationType><PublicationType>Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Opt Express</MedlineTA><NlmUniqueID>101137103</NlmUniqueID><ISSNLinking>1094-4087</ISSNLinking></MedlineJournalInfo></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2012</Year><Month>11</Month><Day>29</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2012</Year><Month>12</Month><Day>5</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2012</Year><Month>12</Month><Day>5</Day><Hour>6</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pii">244632</ArticleId><ArticleId IdType="pubmed">23187672</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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