Low-temperature fabrication of TiO(2) electrodes for flexible dye-sensitized solar cells using an electrospray process
Hierarchically structured TiO2 (HS-TiO2) was prepared on a flexible ITO-PEN (polyethylene naphthalate) substrate via electrospray deposition using a commercially available TiO2 nanocrystalline powder in order to fabricate flexible DSSCs under low-temperature (
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| Veröffentlicht in: | ACS applied materials & interfaces 2012-06, Vol.4 (6), p.3308-3315 |
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| container_issue | 6 |
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| container_title | ACS applied materials & interfaces |
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| creator | Lee, Horim Hwang, Daesub Jo, Seong Mu Kim, Dongho Seo, Yongsok Kim, Dong Young |
| description | Hierarchically structured TiO2 (HS-TiO2) was prepared on a flexible ITO-PEN (polyethylene naphthalate) substrate via electrospray deposition using a commercially available TiO2 nanocrystalline powder in order to fabricate flexible DSSCs under low-temperature ( |
| doi_str_mv | 10.1021/am3007164 |
| format | Article |
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The cell efficiency increased when using flexible ITO-PEN substrates post-treated by either a mechanical compression treatment or a chemical sintering treatment using titanium n-tetrabutoxide (TTB). The mechanical compression treatment reduced the surface area and porosity of the HS-TiO2; however, this treatment improved the interparticle connectivity and physical adhesion between the HS-TiO2 and ITO-PEN substrate, which increased the photocurrent density of the as-pressed HS-TiO2 cells. The electron diffusion coefficients of the as-pressed HS-TiO2 improved upon compression treatment, whereas the recombination lifetimes remained unchanged. An additional chemical sintering post-treatment involving TTB was tested for its effects on DSSC efficiency. The freshly coated TiO2 submitted to TTB hydrolysis in water at 100 °C yielded an anatase phase. TTB treatment of the HS-TiO2 cell after compression treatment yielded faster electron diffusion, providing an efficiency of 5.57% under 100 mW cm(-2), AM 1.5 global illumination.</description><identifier>EISSN: 1944-8252</identifier><identifier>DOI: 10.1021/am3007164</identifier><identifier>PMID: 22658770</identifier><language>eng</language><publisher>United States</publisher><subject>Cold Temperature ; Coloring Agents - chemistry ; Electrodes ; Polyethylenes - chemistry ; Solar Energy ; Tin Compounds - chemistry ; Titanium - chemistry</subject><ispartof>ACS applied materials & interfaces, 2012-06, Vol.4 (6), p.3308-3315</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22658770$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lee, Horim</creatorcontrib><creatorcontrib>Hwang, Daesub</creatorcontrib><creatorcontrib>Jo, Seong Mu</creatorcontrib><creatorcontrib>Kim, Dongho</creatorcontrib><creatorcontrib>Seo, Yongsok</creatorcontrib><creatorcontrib>Kim, Dong Young</creatorcontrib><title>Low-temperature fabrication of TiO(2) electrodes for flexible dye-sensitized solar cells using an electrospray process</title><title>ACS applied materials & interfaces</title><addtitle>ACS Appl Mater Interfaces</addtitle><description>Hierarchically structured TiO2 (HS-TiO2) was prepared on a flexible ITO-PEN (polyethylene naphthalate) substrate via electrospray deposition using a commercially available TiO2 nanocrystalline powder in order to fabricate flexible DSSCs under low-temperature (<150 °C) conditions. The cell efficiency increased when using flexible ITO-PEN substrates post-treated by either a mechanical compression treatment or a chemical sintering treatment using titanium n-tetrabutoxide (TTB). The mechanical compression treatment reduced the surface area and porosity of the HS-TiO2; however, this treatment improved the interparticle connectivity and physical adhesion between the HS-TiO2 and ITO-PEN substrate, which increased the photocurrent density of the as-pressed HS-TiO2 cells. The electron diffusion coefficients of the as-pressed HS-TiO2 improved upon compression treatment, whereas the recombination lifetimes remained unchanged. An additional chemical sintering post-treatment involving TTB was tested for its effects on DSSC efficiency. The freshly coated TiO2 submitted to TTB hydrolysis in water at 100 °C yielded an anatase phase. TTB treatment of the HS-TiO2 cell after compression treatment yielded faster electron diffusion, providing an efficiency of 5.57% under 100 mW cm(-2), AM 1.5 global illumination.</description><subject>Cold Temperature</subject><subject>Coloring Agents - chemistry</subject><subject>Electrodes</subject><subject>Polyethylenes - chemistry</subject><subject>Solar Energy</subject><subject>Tin Compounds - chemistry</subject><subject>Titanium - chemistry</subject><issn>1944-8252</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo1ULtOwzAUtZAQLYWBH0AeyxDwdezEGVHFS6rUpXtkO9fIKImDnQDl62lFO50znJcOITfA7oFxeNBdzlgJhTgjc6iEyBSXfEYuU_pgrMg5kxdkxnkhVVmyOflah-9sxG7AqMcpInXaRG_16ENPg6Nbv1nyO4ot2jGGBhN1IVLX4o83LdJmh1nCPvnR_2JDU2h1pBbbNtEp-f6d6v7kTUPUOzrEYDGlK3LudJvw-ogLsn1-2q5es_Xm5W31uM4GWbAMIAcwQoJA5bRGI0rrGBqVF3bPlLUIqpKKO6GgKLkGbU1VMlNaZhiT-YIs_2P3tZ8TprHufDrM0z2GKdUgqgp4oeAgvT1KJ9NhUw_Rdzru6tNV-R_WAGnY</recordid><startdate>20120627</startdate><enddate>20120627</enddate><creator>Lee, Horim</creator><creator>Hwang, Daesub</creator><creator>Jo, Seong Mu</creator><creator>Kim, Dongho</creator><creator>Seo, Yongsok</creator><creator>Kim, Dong Young</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>7X8</scope></search><sort><creationdate>20120627</creationdate><title>Low-temperature fabrication of TiO(2) electrodes for flexible dye-sensitized solar cells using an electrospray process</title><author>Lee, Horim ; Hwang, Daesub ; Jo, Seong Mu ; Kim, Dongho ; Seo, Yongsok ; Kim, Dong Young</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p560-11311b4514e8faaeb47cf0eb836c7cf8cce189582f481672a1acb970b7c0b0053</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Cold Temperature</topic><topic>Coloring Agents - chemistry</topic><topic>Electrodes</topic><topic>Polyethylenes - chemistry</topic><topic>Solar Energy</topic><topic>Tin Compounds - chemistry</topic><topic>Titanium - chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lee, Horim</creatorcontrib><creatorcontrib>Hwang, Daesub</creatorcontrib><creatorcontrib>Jo, Seong Mu</creatorcontrib><creatorcontrib>Kim, Dongho</creatorcontrib><creatorcontrib>Seo, Yongsok</creatorcontrib><creatorcontrib>Kim, Dong Young</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>MEDLINE - Academic</collection><jtitle>ACS applied materials & interfaces</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lee, Horim</au><au>Hwang, Daesub</au><au>Jo, Seong Mu</au><au>Kim, Dongho</au><au>Seo, Yongsok</au><au>Kim, Dong Young</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Low-temperature fabrication of TiO(2) electrodes for flexible dye-sensitized solar cells using an electrospray process</atitle><jtitle>ACS applied materials & interfaces</jtitle><addtitle>ACS Appl Mater Interfaces</addtitle><date>2012-06-27</date><risdate>2012</risdate><volume>4</volume><issue>6</issue><spage>3308</spage><epage>3315</epage><pages>3308-3315</pages><eissn>1944-8252</eissn><abstract>Hierarchically structured TiO2 (HS-TiO2) was prepared on a flexible ITO-PEN (polyethylene naphthalate) substrate via electrospray deposition using a commercially available TiO2 nanocrystalline powder in order to fabricate flexible DSSCs under low-temperature (<150 °C) conditions. The cell efficiency increased when using flexible ITO-PEN substrates post-treated by either a mechanical compression treatment or a chemical sintering treatment using titanium n-tetrabutoxide (TTB). The mechanical compression treatment reduced the surface area and porosity of the HS-TiO2; however, this treatment improved the interparticle connectivity and physical adhesion between the HS-TiO2 and ITO-PEN substrate, which increased the photocurrent density of the as-pressed HS-TiO2 cells. The electron diffusion coefficients of the as-pressed HS-TiO2 improved upon compression treatment, whereas the recombination lifetimes remained unchanged. An additional chemical sintering post-treatment involving TTB was tested for its effects on DSSC efficiency. The freshly coated TiO2 submitted to TTB hydrolysis in water at 100 °C yielded an anatase phase. TTB treatment of the HS-TiO2 cell after compression treatment yielded faster electron diffusion, providing an efficiency of 5.57% under 100 mW cm(-2), AM 1.5 global illumination.</abstract><cop>United States</cop><pmid>22658770</pmid><doi>10.1021/am3007164</doi><tpages>8</tpages></addata></record> |
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| source | MEDLINE; ACS Publications |
| subjects | Cold Temperature Coloring Agents - chemistry Electrodes Polyethylenes - chemistry Solar Energy Tin Compounds - chemistry Titanium - chemistry |
| title | Low-temperature fabrication of TiO(2) electrodes for flexible dye-sensitized solar cells using an electrospray process |
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