Abstract
We adopt a compact TiO2 (c-TiO2) layer on Nb-doped TiO2 (NTO)/Sn-doped indium oxide (ITO) multilayered electrodes, which are transparent conducting oxide (TCO) electrodes, to improve their transmittance for high-efficiency dye-sensitized solar cells (DSSCs). An NTO layer was deposited on ITO by pulsed laser deposition (PLD) and then a c-TiO2 layer was deposited on the NTO/ITO multilayer by spin-coating a sol. The transmittance spectrum of the c-TiO2/NTO/ITO multilayered photoelectrodes varied with the thickness of TiO2. The short circuit current and energy conversion efficiency of the photoelectrodes also varied with the thickness of the c-TiO2 layer, which is similar behavior to the integrated value of the transmittance in the wavelength range from 500 to 600 nm. Finally, the DSSC employing the 160 nm-thick c-TiO2 layer exhibited the most improved energy conversion efficiency, compared to the DSSC without the c-TiO2 layer. Our results demonstrate that the unfavorable optical properties of TCO, e.g. NTO, for DSSCs can be enhanced by the formation of an additional thin layer, e.g. c-TiO2.
| Original language | English |
|---|---|
| Pages (from-to) | 276-280 |
| Number of pages | 5 |
| Journal | Solar Energy Materials and Solar Cells |
| Volume | 96 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2012 Jan 1 |
| Externally published | Yes |
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Keywords
- Compact TiO layer
- Dye-sensitized solar cells (DSSCs)
- Optical modulation
- Transparent conducting oxides (TCO)
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Renewable Energy, Sustainability and the Environment
- Surfaces, Coatings and Films
Cite this
Transmittance optimized nb-doped TiO2/Sn-doped In 2O3 multilayered photoelectrodes for dye-sensitized solar cells. / Kim, Dong Hoe; Lee, Sangwook; Park, Jong Hoon; Noh, Jun Hong; Park, Ik Jae; Seong, Won Mo; Hong, Kug Sun.
In: Solar Energy Materials and Solar Cells, Vol. 96, No. 1, 01.01.2012, p. 276-280.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Transmittance optimized nb-doped TiO2/Sn-doped In 2O3 multilayered photoelectrodes for dye-sensitized solar cells
AU - Kim, Dong Hoe
AU - Lee, Sangwook
AU - Park, Jong Hoon
AU - Noh, Jun Hong
AU - Park, Ik Jae
AU - Seong, Won Mo
AU - Hong, Kug Sun
PY - 2012/1/1
Y1 - 2012/1/1
N2 - We adopt a compact TiO2 (c-TiO2) layer on Nb-doped TiO2 (NTO)/Sn-doped indium oxide (ITO) multilayered electrodes, which are transparent conducting oxide (TCO) electrodes, to improve their transmittance for high-efficiency dye-sensitized solar cells (DSSCs). An NTO layer was deposited on ITO by pulsed laser deposition (PLD) and then a c-TiO2 layer was deposited on the NTO/ITO multilayer by spin-coating a sol. The transmittance spectrum of the c-TiO2/NTO/ITO multilayered photoelectrodes varied with the thickness of TiO2. The short circuit current and energy conversion efficiency of the photoelectrodes also varied with the thickness of the c-TiO2 layer, which is similar behavior to the integrated value of the transmittance in the wavelength range from 500 to 600 nm. Finally, the DSSC employing the 160 nm-thick c-TiO2 layer exhibited the most improved energy conversion efficiency, compared to the DSSC without the c-TiO2 layer. Our results demonstrate that the unfavorable optical properties of TCO, e.g. NTO, for DSSCs can be enhanced by the formation of an additional thin layer, e.g. c-TiO2.
AB - We adopt a compact TiO2 (c-TiO2) layer on Nb-doped TiO2 (NTO)/Sn-doped indium oxide (ITO) multilayered electrodes, which are transparent conducting oxide (TCO) electrodes, to improve their transmittance for high-efficiency dye-sensitized solar cells (DSSCs). An NTO layer was deposited on ITO by pulsed laser deposition (PLD) and then a c-TiO2 layer was deposited on the NTO/ITO multilayer by spin-coating a sol. The transmittance spectrum of the c-TiO2/NTO/ITO multilayered photoelectrodes varied with the thickness of TiO2. The short circuit current and energy conversion efficiency of the photoelectrodes also varied with the thickness of the c-TiO2 layer, which is similar behavior to the integrated value of the transmittance in the wavelength range from 500 to 600 nm. Finally, the DSSC employing the 160 nm-thick c-TiO2 layer exhibited the most improved energy conversion efficiency, compared to the DSSC without the c-TiO2 layer. Our results demonstrate that the unfavorable optical properties of TCO, e.g. NTO, for DSSCs can be enhanced by the formation of an additional thin layer, e.g. c-TiO2.
KW - Compact TiO layer
KW - Dye-sensitized solar cells (DSSCs)
KW - Optical modulation
KW - Transparent conducting oxides (TCO)
UR - http://www.scopus.com/inward/record.url?scp=80955148908&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80955148908&partnerID=8YFLogxK
U2 - 10.1016/j.solmat.2011.09.011
DO - 10.1016/j.solmat.2011.09.011
M3 - Article
VL - 96
SP - 276
EP - 280
JO - Solar Energy Materials and Solar Cells
JF - Solar Energy Materials and Solar Cells
SN - 0927-0248
IS - 1
ER -