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- Publisher Website: 10.1109/INEC.2008.4585504
- Scopus: eid_2-s2.0-52649177877
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Conference Paper: Efficiency enhancement for ZnO tetrapod dye-sensitized solar cells by TiO2 coating and ammonium treatment
Title | Efficiency enhancement for ZnO tetrapod dye-sensitized solar cells by TiO2 coating and ammonium treatment |
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Authors | |
Issue Date | 2008 |
Publisher | IEEE. |
Citation | 2nd IEEE International Nanoelectronics Conference, Shanghai, China, 24-27 March 2008, p. 358-361 How to Cite? |
Abstract | Dye sensitized solar cells (DSSCs) have aroused much interest in recent years. However, the efficiency still needs improvement. In order to enhance the performance of the cells, it is important to increase the active surface area for dye adsorption so as to increase the light absorbance. In this work, zinc oxide (ZnO) tetrapods, which have four legs extending from a common core, were used to fabricate the photoanode due to its large surface area. Also, it is important to reduce the recombination rate and increase the carrier transport rate so that a higher efficiency can be achieved. Therefore, the effect on the performance of cells after coating a titanium oxide (TiO2) film and ammonium treatment on the ZnO nanostructures were investigated, too. The former helped suppress the recombination rate while the latter helped improve the carrier concentration and charge transport. Moreover, X-ray photoelectron spectroscopy (XPS) and photoluminescence (PL) spectroscopy were performed on the as-grown and ammonia annealed samples. Under optimal conditions, AM 1.5 power conversion efficiency of 1.02% was achieved. © 2008 IEEE. |
Persistent Identifier | http://hdl.handle.net/10722/61701 |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hsu, YF | en_HK |
dc.contributor.author | Yip, CT | en_HK |
dc.contributor.author | Djurišić, AB | en_HK |
dc.contributor.author | Chan, WK | en_HK |
dc.date.accessioned | 2010-07-13T03:45:24Z | - |
dc.date.available | 2010-07-13T03:45:24Z | - |
dc.date.issued | 2008 | en_HK |
dc.identifier.citation | 2nd IEEE International Nanoelectronics Conference, Shanghai, China, 24-27 March 2008, p. 358-361 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/61701 | - |
dc.description.abstract | Dye sensitized solar cells (DSSCs) have aroused much interest in recent years. However, the efficiency still needs improvement. In order to enhance the performance of the cells, it is important to increase the active surface area for dye adsorption so as to increase the light absorbance. In this work, zinc oxide (ZnO) tetrapods, which have four legs extending from a common core, were used to fabricate the photoanode due to its large surface area. Also, it is important to reduce the recombination rate and increase the carrier transport rate so that a higher efficiency can be achieved. Therefore, the effect on the performance of cells after coating a titanium oxide (TiO2) film and ammonium treatment on the ZnO nanostructures were investigated, too. The former helped suppress the recombination rate while the latter helped improve the carrier concentration and charge transport. Moreover, X-ray photoelectron spectroscopy (XPS) and photoluminescence (PL) spectroscopy were performed on the as-grown and ammonia annealed samples. Under optimal conditions, AM 1.5 power conversion efficiency of 1.02% was achieved. © 2008 IEEE. | en_HK |
dc.language | eng | en_HK |
dc.publisher | IEEE. | en_HK |
dc.relation.ispartof | 2008 2nd IEEE International Nanoelectronics Conference, INEC 2008 | en_HK |
dc.rights | ©2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. | en_HK |
dc.title | Efficiency enhancement for ZnO tetrapod dye-sensitized solar cells by TiO2 coating and ammonium treatment | en_HK |
dc.type | Conference_Paper | en_HK |
dc.identifier.email | Djurišić, AB: dalek@hku.hk | en_HK |
dc.identifier.email | Chan, WK: waichan@hku.hk | en_HK |
dc.identifier.authority | Djurišić, AB=rp00690 | en_HK |
dc.identifier.authority | Chan, WK=rp00667 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1109/INEC.2008.4585504 | en_HK |
dc.identifier.scopus | eid_2-s2.0-52649177877 | en_HK |
dc.identifier.hkuros | 153987 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-52649177877&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.spage | 358 | en_HK |
dc.identifier.epage | 361 | en_HK |
dc.identifier.scopusauthorid | Hsu, YF=16063930300 | en_HK |
dc.identifier.scopusauthorid | Yip, CT=14043063100 | en_HK |
dc.identifier.scopusauthorid | Djurišić, AB=7004904830 | en_HK |
dc.identifier.scopusauthorid | Chan, WK=13310083000 | en_HK |