Voltage-Enhancement Mechanisms of an Organic Dye in High Open-Circuit Voltage Solid-State Dye-Sensitized Solar Cells
Sensitization of solid-state dye-sensitized solar cells (SSDSSCs) with a new, organic donor-π-acceptor dye with a large molar absorption coefficient led to an open-circuit voltage of over 1 V at AM1.5 solar irradiance (100 mW/cm2). Recombination of electrons in the TiO2 film with the oxidized specie...
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| Veröffentlicht in: | ACS nano 2011-10, Vol.5 (10), p.8267-8274 |
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| creator | Jang, Song-Rim Zhu, Kai Ko, Min Jae Kim, Kyungkon Kim, Chulhee Park, Nam-Gyu Frank, Arthur J |
| description | Sensitization of solid-state dye-sensitized solar cells (SSDSSCs) with a new, organic donor-π-acceptor dye with a large molar absorption coefficient led to an open-circuit voltage of over 1 V at AM1.5 solar irradiance (100 mW/cm2). Recombination of electrons in the TiO2 film with the oxidized species in the hole-transfer material (HTM) was significantly slower with the organic dye than with a standard ruthenium complex dye. Density functional theory indicated that steric shielding of the electrons in the TiO2 by the organic dye was important in reducing recombination. Preventing the loss of photoelectrons resulted in a significant voltage gain. There was no evidence that the organic dye contributed to the high voltage by shifting the band edges to more negative electrode potentials. Compared with an iodide-based liquid electrolyte, however, the more positive redox potential of the solid-state HTM used in the SSDSSCs favored higher voltages. |
| doi_str_mv | 10.1021/nn2029567 |
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(NREL), Golden, CO (United States)</creatorcontrib><description>Sensitization of solid-state dye-sensitized solar cells (SSDSSCs) with a new, organic donor-π-acceptor dye with a large molar absorption coefficient led to an open-circuit voltage of over 1 V at AM1.5 solar irradiance (100 mW/cm2). Recombination of electrons in the TiO2 film with the oxidized species in the hole-transfer material (HTM) was significantly slower with the organic dye than with a standard ruthenium complex dye. Density functional theory indicated that steric shielding of the electrons in the TiO2 by the organic dye was important in reducing recombination. Preventing the loss of photoelectrons resulted in a significant voltage gain. There was no evidence that the organic dye contributed to the high voltage by shifting the band edges to more negative electrode potentials. Compared with an iodide-based liquid electrolyte, however, the more positive redox potential of the solid-state HTM used in the SSDSSCs favored higher voltages.</description><identifier>ISSN: 1936-0851</identifier><identifier>EISSN: 1936-086X</identifier><identifier>DOI: 10.1021/nn2029567</identifier><identifier>PMID: 21932767</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><subject>Dyes ; Electric potential ; Electrode potentials ; high VOC ; High voltages ; NANOSCIENCE AND NANOTECHNOLOGY ; Nanostructure ; organic sensitizer ; Photovoltaic cells ; recombination kinetics ; Solar cells ; SOLAR ENERGY ; solid-state dye-sensitized solar cells ; spiro-MeOTAD ; Titanium dioxide ; Voltage</subject><ispartof>ACS nano, 2011-10, Vol.5 (10), p.8267-8274</ispartof><rights>Copyright © 2011 American Chemical Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a440t-be159a46e85b663900231626379cbd5d4fd9b5581a120dcfc4197fb2f2057f963</citedby><cites>FETCH-LOGICAL-a440t-be159a46e85b663900231626379cbd5d4fd9b5581a120dcfc4197fb2f2057f963</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/nn2029567$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/nn2029567$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>230,314,780,784,885,2763,27075,27923,27924,56737,56787</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21932767$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/1257517$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Jang, Song-Rim</creatorcontrib><creatorcontrib>Zhu, Kai</creatorcontrib><creatorcontrib>Ko, Min Jae</creatorcontrib><creatorcontrib>Kim, Kyungkon</creatorcontrib><creatorcontrib>Kim, Chulhee</creatorcontrib><creatorcontrib>Park, Nam-Gyu</creatorcontrib><creatorcontrib>Frank, Arthur J</creatorcontrib><creatorcontrib>National Renewable Energy Lab. (NREL), Golden, CO (United States)</creatorcontrib><title>Voltage-Enhancement Mechanisms of an Organic Dye in High Open-Circuit Voltage Solid-State Dye-Sensitized Solar Cells</title><title>ACS nano</title><addtitle>ACS Nano</addtitle><description>Sensitization of solid-state dye-sensitized solar cells (SSDSSCs) with a new, organic donor-π-acceptor dye with a large molar absorption coefficient led to an open-circuit voltage of over 1 V at AM1.5 solar irradiance (100 mW/cm2). Recombination of electrons in the TiO2 film with the oxidized species in the hole-transfer material (HTM) was significantly slower with the organic dye than with a standard ruthenium complex dye. Density functional theory indicated that steric shielding of the electrons in the TiO2 by the organic dye was important in reducing recombination. Preventing the loss of photoelectrons resulted in a significant voltage gain. There was no evidence that the organic dye contributed to the high voltage by shifting the band edges to more negative electrode potentials. Compared with an iodide-based liquid electrolyte, however, the more positive redox potential of the solid-state HTM used in the SSDSSCs favored higher voltages.</description><subject>Dyes</subject><subject>Electric potential</subject><subject>Electrode potentials</subject><subject>high VOC</subject><subject>High voltages</subject><subject>NANOSCIENCE AND NANOTECHNOLOGY</subject><subject>Nanostructure</subject><subject>organic sensitizer</subject><subject>Photovoltaic cells</subject><subject>recombination kinetics</subject><subject>Solar cells</subject><subject>SOLAR ENERGY</subject><subject>solid-state dye-sensitized solar cells</subject><subject>spiro-MeOTAD</subject><subject>Titanium dioxide</subject><subject>Voltage</subject><issn>1936-0851</issn><issn>1936-086X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp9kU1v1DAQhi0E6hcc-APIQkIthxTbie34iJZ-ILXawwLiZjnOZOsqsRfbOZRfX692uyfEaWY0j975eBF6T8klJYx-8Z4RpriQr9AJVbWoSCt-vz7knB6j05QeCeGyleIIHbPSYVLIE5R_hTGbNVRX_sF4CxP4jO_BlsKlKeEwYOPxMq5LbfG3J8DO41u3fsDLDfhq4aKdXcZ7FbwKo-urVTYZtnC1Ap9cdn-h37ZMxAsYx_QWvRnMmODdPp6hn9dXPxa31d3y5vvi611lmobkqgPKlWkEtLwTolaEsJoKJmqpbNfzvhl61XHeUkMZ6e1gG6rk0LGBlUMHJeoz9HGnG1J2OlmXy2E2eA82a8q45FQW6HwHbWL4M0PKenLJljWNhzAnXcaKhjZtU8iL_5JUiu3kWrGCft6hNoaUIgx6E91k4pOmRG890wfPCvthLzt3E_QH8sWkAnzaAcYm_Rjm6MvT_iH0DGJUm2Y</recordid><startdate>20111025</startdate><enddate>20111025</enddate><creator>Jang, Song-Rim</creator><creator>Zhu, Kai</creator><creator>Ko, Min Jae</creator><creator>Kim, Kyungkon</creator><creator>Kim, Chulhee</creator><creator>Park, Nam-Gyu</creator><creator>Frank, Arthur J</creator><general>American Chemical Society</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>7X8</scope><scope>OTOTI</scope></search><sort><creationdate>20111025</creationdate><title>Voltage-Enhancement Mechanisms of an Organic Dye in High Open-Circuit Voltage Solid-State Dye-Sensitized Solar Cells</title><author>Jang, Song-Rim ; Zhu, Kai ; Ko, Min Jae ; Kim, Kyungkon ; Kim, Chulhee ; Park, Nam-Gyu ; Frank, Arthur J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a440t-be159a46e85b663900231626379cbd5d4fd9b5581a120dcfc4197fb2f2057f963</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Dyes</topic><topic>Electric potential</topic><topic>Electrode potentials</topic><topic>high VOC</topic><topic>High voltages</topic><topic>NANOSCIENCE AND NANOTECHNOLOGY</topic><topic>Nanostructure</topic><topic>organic sensitizer</topic><topic>Photovoltaic cells</topic><topic>recombination kinetics</topic><topic>Solar cells</topic><topic>SOLAR ENERGY</topic><topic>solid-state dye-sensitized solar cells</topic><topic>spiro-MeOTAD</topic><topic>Titanium dioxide</topic><topic>Voltage</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jang, Song-Rim</creatorcontrib><creatorcontrib>Zhu, Kai</creatorcontrib><creatorcontrib>Ko, Min Jae</creatorcontrib><creatorcontrib>Kim, Kyungkon</creatorcontrib><creatorcontrib>Kim, Chulhee</creatorcontrib><creatorcontrib>Park, Nam-Gyu</creatorcontrib><creatorcontrib>Frank, Arthur J</creatorcontrib><creatorcontrib>National Renewable Energy Lab. 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(NREL), Golden, CO (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Voltage-Enhancement Mechanisms of an Organic Dye in High Open-Circuit Voltage Solid-State Dye-Sensitized Solar Cells</atitle><jtitle>ACS nano</jtitle><addtitle>ACS Nano</addtitle><date>2011-10-25</date><risdate>2011</risdate><volume>5</volume><issue>10</issue><spage>8267</spage><epage>8274</epage><pages>8267-8274</pages><issn>1936-0851</issn><eissn>1936-086X</eissn><abstract>Sensitization of solid-state dye-sensitized solar cells (SSDSSCs) with a new, organic donor-π-acceptor dye with a large molar absorption coefficient led to an open-circuit voltage of over 1 V at AM1.5 solar irradiance (100 mW/cm2). Recombination of electrons in the TiO2 film with the oxidized species in the hole-transfer material (HTM) was significantly slower with the organic dye than with a standard ruthenium complex dye. Density functional theory indicated that steric shielding of the electrons in the TiO2 by the organic dye was important in reducing recombination. Preventing the loss of photoelectrons resulted in a significant voltage gain. There was no evidence that the organic dye contributed to the high voltage by shifting the band edges to more negative electrode potentials. Compared with an iodide-based liquid electrolyte, however, the more positive redox potential of the solid-state HTM used in the SSDSSCs favored higher voltages.</abstract><cop>United States</cop><pub>American Chemical Society</pub><pmid>21932767</pmid><doi>10.1021/nn2029567</doi><tpages>8</tpages></addata></record> |
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| subjects | Dyes Electric potential Electrode potentials high VOC High voltages NANOSCIENCE AND NANOTECHNOLOGY Nanostructure organic sensitizer Photovoltaic cells recombination kinetics Solar cells SOLAR ENERGY solid-state dye-sensitized solar cells spiro-MeOTAD Titanium dioxide Voltage |
| title | Voltage-Enhancement Mechanisms of an Organic Dye in High Open-Circuit Voltage Solid-State Dye-Sensitized Solar Cells |
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