Investigation into Photoconductivity in Single CNF/TiO<sub>2</sub>-Dye Core–Shell Nanowire Devices
<p>Abstract</p> <p>A vertically aligned carbon nanofiber array coated with anatase TiO<sub>2</sub> (CNF/TiO<sub>2</sub>) is an attractive possible replacement for the sintered TiO<sub>2</sub> nanoparticle network in the original dye-sensitized so...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2010-01-01
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| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1007/s11671-010-9665-3 |
| _version_ | 1827847272758509568 |
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| author | Rochford Caitlin Wu Judy Liu Jianwei Li Jun Javier Baca F Li Zhuangzhi |
| author_facet | Rochford Caitlin Wu Judy Liu Jianwei Li Jun Javier Baca F Li Zhuangzhi |
| author_sort | Rochford Caitlin |
| collection | DOAJ |
| description | <p>Abstract</p> <p>A vertically aligned carbon nanofiber array coated with anatase TiO<sub>2</sub> (CNF/TiO<sub>2</sub>) is an attractive possible replacement for the sintered TiO<sub>2</sub> nanoparticle network in the original dye-sensitized solar cell (DSSC) design due to the potential for improved charge transport and reduced charge recombination. Although the reported efficiency of 1.1% in these modified DSSC’s is encouraging, the limiting factors must be identified before a higher efficiency can be obtained. This work employs a single nanowire approach to investigate the charge transport in individual CNF/TiO<sub>2</sub> core–shell nanowires with adsorbed N719 dye molecules in dark and under illumination. The results shed light on the role of charge traps and dye adsorption on the (photo) conductivity of nanocrystalline TiO<sub>2</sub> CNF’s as related to dye-sensitized solar cell performance.</p> |
| first_indexed | 2024-03-12T09:28:07Z |
| format | Article |
| id | doaj.art-4382e1abd0fe496880b593655106a692 |
| institution | Directory Open Access Journal |
| issn | 1931-7573 1556-276X |
| language | English |
| last_indexed | 2024-03-12T09:28:07Z |
| publishDate | 2010-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-4382e1abd0fe496880b593655106a6922023-09-02T14:04:00ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2010-01-015914801486Investigation into Photoconductivity in Single CNF/TiO<sub>2</sub>-Dye Core–Shell Nanowire DevicesRochford CaitlinWu JudyLiu JianweiLi JunJavier Baca FLi Zhuangzhi<p>Abstract</p> <p>A vertically aligned carbon nanofiber array coated with anatase TiO<sub>2</sub> (CNF/TiO<sub>2</sub>) is an attractive possible replacement for the sintered TiO<sub>2</sub> nanoparticle network in the original dye-sensitized solar cell (DSSC) design due to the potential for improved charge transport and reduced charge recombination. Although the reported efficiency of 1.1% in these modified DSSC’s is encouraging, the limiting factors must be identified before a higher efficiency can be obtained. This work employs a single nanowire approach to investigate the charge transport in individual CNF/TiO<sub>2</sub> core–shell nanowires with adsorbed N719 dye molecules in dark and under illumination. The results shed light on the role of charge traps and dye adsorption on the (photo) conductivity of nanocrystalline TiO<sub>2</sub> CNF’s as related to dye-sensitized solar cell performance.</p>http://dx.doi.org/10.1007/s11671-010-9665-3PhotoconductivityNanowireTitanium dioxideDye-sensitized solar cellCore–shell |
| spellingShingle | Rochford Caitlin Wu Judy Liu Jianwei Li Jun Javier Baca F Li Zhuangzhi Investigation into Photoconductivity in Single CNF/TiO<sub>2</sub>-Dye Core–Shell Nanowire Devices Nanoscale Research Letters Photoconductivity Nanowire Titanium dioxide Dye-sensitized solar cell Core–shell |
| title | Investigation into Photoconductivity in Single CNF/TiO<sub>2</sub>-Dye Core–Shell Nanowire Devices |
| title_full | Investigation into Photoconductivity in Single CNF/TiO<sub>2</sub>-Dye Core–Shell Nanowire Devices |
| title_fullStr | Investigation into Photoconductivity in Single CNF/TiO<sub>2</sub>-Dye Core–Shell Nanowire Devices |
| title_full_unstemmed | Investigation into Photoconductivity in Single CNF/TiO<sub>2</sub>-Dye Core–Shell Nanowire Devices |
| title_short | Investigation into Photoconductivity in Single CNF/TiO<sub>2</sub>-Dye Core–Shell Nanowire Devices |
| title_sort | investigation into photoconductivity in single cnf tio sub 2 sub dye core 8211 shell nanowire devices |
| topic | Photoconductivity Nanowire Titanium dioxide Dye-sensitized solar cell Core–shell |
| url | http://dx.doi.org/10.1007/s11671-010-9665-3 |
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