Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 강용수 | - |
dc.date.accessioned | 2018-02-19T01:55:01Z | - |
dc.date.available | 2018-02-19T01:55:01Z | - |
dc.date.issued | 2012-07 | - |
dc.identifier.citation | NANOSCALE; 2012, 4, 7, p2416-p2422 | en_US |
dc.identifier.issn | 2040-3364 | - |
dc.identifier.uri | http://pubs.rsc.org/en/results?artrefjournalname=NANOSCALE&artrefstartpage=2416&artrefvolumeyear=2012&fcategory=journal | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/38031 | - |
dc.description.abstract | Hierarchical nanostructured titanium dioxide (TiO2) clumps were fabricated using electrostatic spray with subsequent nitrogen-ion doping by an ion-implantation technique for improvement of energy conversion efficiency for quantum dot-sensitized solar cells (QDSCs). CdSe quantum dots were directly assembled on the produced N-ion-implanted TiO2 photoanodes by chemical bath deposition, and their photovoltaic performance was evaluated in a polysulfide electrolyte with a Pt counter electrode. We found that the photovoltaic performance of TiO2 electrodes was improved by nearly 145% upon N-ion implantation. The efficiency improvement seems to be due to (1) the enhancement of electron transport through the TiO2 layer by inter-particle necking of primary TiO2 particles and (2) an increase in the recombination resistance at TiO2/QD/electrolyte interfaces by healing the surface states or managing the oxygen vacancies upon N-ion doping. Therefore, N-ion-doped photoanodes offer a viable pathway to develop more efficient QD or dye-sensitized solar cells. | en_US |
dc.description.sponsorship | This work was supported by the Engineering Research Center Program through a National Research Foundation of Korea (NRF) grant funded by the Ministry of Edu 000005A8 cation, Science and Technology (MEST) (no. 2011-0001055) and also by the World Class University (WCU) program (no. R31-2008-000-10092). We thank Dr. P. Kumar and Dr. D. Kanjilal, Inter-University Accelerator Centre (IUAC), New Delhi, India for providing us with beam time for N-ion implantation. Special thanks to Dr. Jai Prakash, IUAC for his help in Monte Carlo SRIM 2008 simulation. | en_US |
dc.language.iso | en | en_US |
dc.publisher | ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND | en_US |
dc.subject | TITANIUM-DIOXIDE | en_US |
dc.subject | VISIBLE-LIGHT | en_US |
dc.subject | THIN-FILMS | en_US |
dc.subject | DYE | en_US |
dc.subject | SEMICONDUCTOR | en_US |
dc.subject | ELECTROLYTE | en_US |
dc.subject | SURFACE | en_US |
dc.subject | NANOMATERIALS | en_US |
dc.subject | RECOMBINATION | en_US |
dc.subject | ORIGIN | en_US |
dc.title | N-Ion-implanted TiO2 photoanodes in quantum dot-sensitized solar cells | en_US |
dc.type | Article | en_US |
dc.relation.no | 7 | - |
dc.relation.volume | 4 | - |
dc.identifier.doi | 10.1039/c2nr11953f | - |
dc.relation.page | 2416-2422 | - |
dc.relation.journal | NANOSCALE | - |
dc.contributor.googleauthor | Sudhagar, P | - |
dc.contributor.googleauthor | Asokan, K | - |
dc.contributor.googleauthor | Ito, E | - |
dc.contributor.googleauthor | Kang, Yong Soo | - |
dc.relation.code | 2012221035 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ENERGY ENGINEERING | - |
dc.identifier.pid | kangys | - |
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