Abstract
We report the fabrication of silicon/carbon core/shell nanowire arrays using a two-step process, involving electroless metal deposition and chemical vapor deposition. In general, foreign shell materials that sheath core materials change the inherent characteristics of the core materials. The carbon coating functionalized the silicon nanowire arrays, which subsequently showed electrocatalytic activities for the reduction of iodide/triiodide. This was verified by cyclic voltammetry and electrochemical impedance spectroscopy. We employed the carbon-coated silicon nanowire arrays in dye-sensitized solar cells as counter electrodes. We optimized the carbon shells to maximize the photovoltaic performance of the resulting devices, and subsequently, a peak power conversion efficiency of 9.22% was achieved.
| Original language | English |
|---|---|
| Pages (from-to) | 18788-18794 |
| Number of pages | 7 |
| Journal | ACS Applied Materials and Interfaces |
| Volume | 6 |
| Issue number | 21 |
| DOIs | |
| Publication status | Published - 2014 Jan 1 |
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ASJC Scopus subject areas
- Materials Science(all)
Cite this
Fabrication of carbon-coated silicon nanowires and their application in dye-sensitized solar cells. / Kim, Junhee; Lim, Jeongmin; Kim, Minsoo; Lee, Haeseok; Jun, Yongseok; Kim, Donghwan.
In: ACS Applied Materials and Interfaces, Vol. 6, No. 21, 01.01.2014, p. 18788-18794.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fabrication of carbon-coated silicon nanowires and their application in dye-sensitized solar cells
AU - Kim, Junhee
AU - Lim, Jeongmin
AU - Kim, Minsoo
AU - Lee, Haeseok
AU - Jun, Yongseok
AU - Kim, Donghwan
PY - 2014/1/1
Y1 - 2014/1/1
N2 - We report the fabrication of silicon/carbon core/shell nanowire arrays using a two-step process, involving electroless metal deposition and chemical vapor deposition. In general, foreign shell materials that sheath core materials change the inherent characteristics of the core materials. The carbon coating functionalized the silicon nanowire arrays, which subsequently showed electrocatalytic activities for the reduction of iodide/triiodide. This was verified by cyclic voltammetry and electrochemical impedance spectroscopy. We employed the carbon-coated silicon nanowire arrays in dye-sensitized solar cells as counter electrodes. We optimized the carbon shells to maximize the photovoltaic performance of the resulting devices, and subsequently, a peak power conversion efficiency of 9.22% was achieved.
AB - We report the fabrication of silicon/carbon core/shell nanowire arrays using a two-step process, involving electroless metal deposition and chemical vapor deposition. In general, foreign shell materials that sheath core materials change the inherent characteristics of the core materials. The carbon coating functionalized the silicon nanowire arrays, which subsequently showed electrocatalytic activities for the reduction of iodide/triiodide. This was verified by cyclic voltammetry and electrochemical impedance spectroscopy. We employed the carbon-coated silicon nanowire arrays in dye-sensitized solar cells as counter electrodes. We optimized the carbon shells to maximize the photovoltaic performance of the resulting devices, and subsequently, a peak power conversion efficiency of 9.22% was achieved.
KW - carbon
KW - core/shell nanostructure
KW - counter electrode
KW - dye-sensitized solar cells
KW - silicon nanowire
UR - http://www.scopus.com/inward/record.url?scp=84910137158&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84910137158&partnerID=8YFLogxK
U2 - 10.1021/am504469y
DO - 10.1021/am504469y
M3 - Article
AN - SCOPUS:84910137158
VL - 6
SP - 18788
EP - 18794
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 21
ER -