Photoinjection of High Potential Holes into Cu5Ta11O30 Nanoparticles by Porphyrin Dyes
Excited-state hole injection into the valence band of Cu5Ta11O30 nanoparticles (NP-Cu5Ta11O30) was investigated through sensitization with zinc porphyrin dyes using simulated solar irradiance. The Cu5Ta11O30 nanoparticles were prepared by a flux-mediated synthesis and found to have an average partic...
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| Veröffentlicht in: | Journal of physical chemistry. C 2015-09, Vol.119 (37), p.21294-21303 |
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| container_issue | 37 |
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| container_title | Journal of physical chemistry. C |
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| creator | Sullivan, Ian Brown, Chelsea L Llansola-Portoles, Manuel J Gervaldo, Miguel Kodis, Gerdenis Moore, Thomas A Gust, Devens Moore, Ana L Maggard, Paul A |
| description | Excited-state hole injection into the valence band of Cu5Ta11O30 nanoparticles (NP-Cu5Ta11O30) was investigated through sensitization with zinc porphyrin dyes using simulated solar irradiance. The Cu5Ta11O30 nanoparticles were prepared by a flux-mediated synthesis and found to have an average particle size of ∼10–15 nm by DLS and TEM. The zinc 4-(10,15,20-tris(4-pyridinyl)-porphin-5-yl)phenylphosphonic acid (D1) and its analogue, in which the pyridine groups are methylated (D2), were synthesized and found to have excited-state reduction potentials appropriate for p-type dye sensitization of the nanoparticles. The dye-sensitized NP-Cu5Ta11O30 exhibited fluorescence quenching consistent with electron transfer from the NP-Cu5Ta11O30 to the dye; forward and recombination rates were obtained by transient absorption measurements. Hole injection times of 8 ps and |
| doi_str_mv | 10.1021/acs.jpcc.5b02174 |
| format | Article |
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Center for Bio-Inspired Solar Fuel Production (BISfuel)</creatorcontrib><description>Excited-state hole injection into the valence band of Cu5Ta11O30 nanoparticles (NP-Cu5Ta11O30) was investigated through sensitization with zinc porphyrin dyes using simulated solar irradiance. The Cu5Ta11O30 nanoparticles were prepared by a flux-mediated synthesis and found to have an average particle size of ∼10–15 nm by DLS and TEM. The zinc 4-(10,15,20-tris(4-pyridinyl)-porphin-5-yl)phenylphosphonic acid (D1) and its analogue, in which the pyridine groups are methylated (D2), were synthesized and found to have excited-state reduction potentials appropriate for p-type dye sensitization of the nanoparticles. The dye-sensitized NP-Cu5Ta11O30 exhibited fluorescence quenching consistent with electron transfer from the NP-Cu5Ta11O30 to the dye; forward and recombination rates were obtained by transient absorption measurements. Hole injection times of 8 ps and <100 fs were observed for D1 and D2, respectively. Nanoparticulate films of Cu5Ta11O30 were prepared and evaluated in dye-sensitized solar cells under simulated solar irradiance (AM 1.5 G, 100 mW/cm2). Measurable photocurrents and open-circuit potentials (V oc) of 200 and 110 mV were observed using D1 and D2, respectively.</description><identifier>ISSN: 1932-7447</identifier><identifier>EISSN: 1932-7455</identifier><identifier>DOI: 10.1021/acs.jpcc.5b02174</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><subject>INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY</subject><ispartof>Journal of physical chemistry. 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Center for Bio-Inspired Solar Fuel Production (BISfuel)</creatorcontrib><title>Photoinjection of High Potential Holes into Cu5Ta11O30 Nanoparticles by Porphyrin Dyes</title><title>Journal of physical chemistry. C</title><addtitle>J. Phys. Chem. C</addtitle><description>Excited-state hole injection into the valence band of Cu5Ta11O30 nanoparticles (NP-Cu5Ta11O30) was investigated through sensitization with zinc porphyrin dyes using simulated solar irradiance. The Cu5Ta11O30 nanoparticles were prepared by a flux-mediated synthesis and found to have an average particle size of ∼10–15 nm by DLS and TEM. The zinc 4-(10,15,20-tris(4-pyridinyl)-porphin-5-yl)phenylphosphonic acid (D1) and its analogue, in which the pyridine groups are methylated (D2), were synthesized and found to have excited-state reduction potentials appropriate for p-type dye sensitization of the nanoparticles. The dye-sensitized NP-Cu5Ta11O30 exhibited fluorescence quenching consistent with electron transfer from the NP-Cu5Ta11O30 to the dye; forward and recombination rates were obtained by transient absorption measurements. Hole injection times of 8 ps and <100 fs were observed for D1 and D2, respectively. Nanoparticulate films of Cu5Ta11O30 were prepared and evaluated in dye-sensitized solar cells under simulated solar irradiance (AM 1.5 G, 100 mW/cm2). Measurable photocurrents and open-circuit potentials (V oc) of 200 and 110 mV were observed using D1 and D2, respectively.</description><subject>INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY</subject><issn>1932-7447</issn><issn>1932-7455</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNo9kDtPwzAQxy0EEqWwM1rMpPgZJyMqjyBVtENhjdyzQxxVdhW7Q789Lq245V7_O939ELqnZEYJo08a4mzYAczkJqdKXKAJrTkrlJDy8j8W6hrdxDgQIjmhfIK-V31IwfnBQnLB49Dhxv30eBWS9cnpLW7C1kbsfAp4vpdrTemSE_ypfdjpMTk4djeHPDDu-sPoPH452HiLrjq9jfbu7Kfo6-11PW-KxfL9Y_68KDSrq1QoRWlJhVYdCAIGZEVEbaAyVmWTtaTAmRBSi64yxAgGGwPArFC0YsoAn6KH094Qk2sjuGShh-B9fqelvKzLkmfR40mUGbVD2I8-n9RS0h7BtX_FDK49g-O_-FNh9g</recordid><startdate>20150917</startdate><enddate>20150917</enddate><creator>Sullivan, Ian</creator><creator>Brown, Chelsea L</creator><creator>Llansola-Portoles, Manuel J</creator><creator>Gervaldo, Miguel</creator><creator>Kodis, Gerdenis</creator><creator>Moore, Thomas A</creator><creator>Gust, Devens</creator><creator>Moore, Ana L</creator><creator>Maggard, Paul A</creator><general>American Chemical Society</general><scope>OIOZB</scope><scope>OTOTI</scope></search><sort><creationdate>20150917</creationdate><title>Photoinjection of High Potential Holes into Cu5Ta11O30 Nanoparticles by Porphyrin Dyes</title><author>Sullivan, Ian ; Brown, Chelsea L ; Llansola-Portoles, Manuel J ; Gervaldo, Miguel ; Kodis, Gerdenis ; Moore, Thomas A ; Gust, Devens ; Moore, Ana L ; Maggard, Paul A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a298t-7711614a7fc40cdc58049dc8de77775951c32445a4f8d0d42cbdcc2e471827dc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sullivan, Ian</creatorcontrib><creatorcontrib>Brown, Chelsea L</creatorcontrib><creatorcontrib>Llansola-Portoles, Manuel J</creatorcontrib><creatorcontrib>Gervaldo, Miguel</creatorcontrib><creatorcontrib>Kodis, Gerdenis</creatorcontrib><creatorcontrib>Moore, Thomas A</creatorcontrib><creatorcontrib>Gust, Devens</creatorcontrib><creatorcontrib>Moore, Ana L</creatorcontrib><creatorcontrib>Maggard, Paul A</creatorcontrib><creatorcontrib>Energy Frontier Research Centers (EFRC) (United States). Center for Bio-Inspired Solar Fuel Production (BISfuel)</creatorcontrib><collection>OSTI.GOV - Hybrid</collection><collection>OSTI.GOV</collection><jtitle>Journal of physical chemistry. C</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sullivan, Ian</au><au>Brown, Chelsea L</au><au>Llansola-Portoles, Manuel J</au><au>Gervaldo, Miguel</au><au>Kodis, Gerdenis</au><au>Moore, Thomas A</au><au>Gust, Devens</au><au>Moore, Ana L</au><au>Maggard, Paul A</au><aucorp>Energy Frontier Research Centers (EFRC) (United States). Center for Bio-Inspired Solar Fuel Production (BISfuel)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Photoinjection of High Potential Holes into Cu5Ta11O30 Nanoparticles by Porphyrin Dyes</atitle><jtitle>Journal of physical chemistry. C</jtitle><addtitle>J. Phys. Chem. C</addtitle><date>2015-09-17</date><risdate>2015</risdate><volume>119</volume><issue>37</issue><spage>21294</spage><epage>21303</epage><pages>21294-21303</pages><issn>1932-7447</issn><eissn>1932-7455</eissn><abstract>Excited-state hole injection into the valence band of Cu5Ta11O30 nanoparticles (NP-Cu5Ta11O30) was investigated through sensitization with zinc porphyrin dyes using simulated solar irradiance. The Cu5Ta11O30 nanoparticles were prepared by a flux-mediated synthesis and found to have an average particle size of ∼10–15 nm by DLS and TEM. The zinc 4-(10,15,20-tris(4-pyridinyl)-porphin-5-yl)phenylphosphonic acid (D1) and its analogue, in which the pyridine groups are methylated (D2), were synthesized and found to have excited-state reduction potentials appropriate for p-type dye sensitization of the nanoparticles. The dye-sensitized NP-Cu5Ta11O30 exhibited fluorescence quenching consistent with electron transfer from the NP-Cu5Ta11O30 to the dye; forward and recombination rates were obtained by transient absorption measurements. Hole injection times of 8 ps and <100 fs were observed for D1 and D2, respectively. Nanoparticulate films of Cu5Ta11O30 were prepared and evaluated in dye-sensitized solar cells under simulated solar irradiance (AM 1.5 G, 100 mW/cm2). Measurable photocurrents and open-circuit potentials (V oc) of 200 and 110 mV were observed using D1 and D2, respectively.</abstract><cop>United States</cop><pub>American Chemical Society</pub><doi>10.1021/acs.jpcc.5b02174</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
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| title | Photoinjection of High Potential Holes into Cu5Ta11O30 Nanoparticles by Porphyrin Dyes |
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