Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 한성환 | - |
dc.date.accessioned | 2018-03-26T07:26:54Z | - |
dc.date.available | 2018-03-26T07:26:54Z | - |
dc.date.issued | 2014-12 | - |
dc.identifier.citation | MATERIALS CHEMISTRY AND PHYSICS, 148(3), p.562-568 | en_US |
dc.identifier.issn | 0254-0584 | - |
dc.identifier.issn | 1879-3312 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0254058414005070 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/52535 | - |
dc.description.abstract | The compact (c-CuxS) and the porous (p-CuxS) with particle decorated films of coppersulfidearesynthesized using a chemical bath deposition technique, and the films are characterized using electrochemical techniques. In addition, the chemically deposited CuxS films are investigated as a counter electrode in quantum dots-sensitized solar cells (QSSCs). The available redox active reaction sites of the p-CuxS film are found to be 57.9% higher than those available in the c-CuxS film. From the electrochemical impedance spectroscopy, the effective diffusion coefficients of the polysulfide electrolyte in the c-CuxS and p-CuxS films are estimated to be 3.67 x 10(-5) and 6.35 x 10(-5) cm(2) s(-1), respectively. These results can be ascribed to the improvement in the available redox active reaction sites and the electrocatalytic activity of the CuxS counter electrode. As compared to the c-CuxS film, the p-CuxS film as a counter electrode exhibits an enhanced photovoltaic performance of the QSSCs with the power conversion efficiency of 3.17%, short-circuit current of 11.89 mA c(-)m(2), open-circuit voltage of 0.50 V, and fill factor of 53.29. The improved performance of the QSSCs is ascribed to the improvements on the available redox active reaction sites, electrocatalytic activity and the diffusion coefficients, which are directly related to the surface morphology of the sulfide films. (C) 2014 Elsevier B.V. All rights reserved. | en_US |
dc.description.sponsorship | This research was supported by the MIST Institutional Program (2E23964) and also by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2013009768). One of the authors (N. K. Shrestha) is supported by The Korean Federation of Science and Technology Societies under Brain Pool program. | en_US |
dc.language.iso | en | en_US |
dc.publisher | ELSEVIER SCIENCE SA | en_US |
dc.subject | Semiconductor | en_US |
dc.subject | Nanostructures | en_US |
dc.subject | Chemical synthesis | en_US |
dc.subject | Electrochemical techniques | en_US |
dc.title | Electrocatalytic activity of chemically deposited CuxS thin film for counter electrode in quantum dots-sensitized solar cells | en_US |
dc.type | Article | en_US |
dc.relation.volume | 148 | - |
dc.identifier.doi | 10.1016/j.matchemphys.2014.08.008 | - |
dc.relation.page | 562-568 | - |
dc.relation.journal | MATERIALS CHEMISTRY AND PHYSICS | - |
dc.contributor.googleauthor | Lim, Iseul | - |
dc.contributor.googleauthor | Lee, Deok Yoon | - |
dc.contributor.googleauthor | Patil, Supriya A. | - |
dc.contributor.googleauthor | Shrestha, Nabeen K. | - |
dc.contributor.googleauthor | Kang, Soon Hyung | - |
dc.contributor.googleauthor | Nah, Yoon-Chae | - |
dc.contributor.googleauthor | Lee, Wonjoo | - |
dc.contributor.googleauthor | Han, Sung-Hwan | - |
dc.relation.code | 2014035684 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF NATURAL SCIENCES[S] | - |
dc.sector.department | DEPARTMENT OF CHEMISTRY | - |
dc.identifier.pid | shhan | - |
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