Abstract
We report on the electrical and optical properties of ZnO/Ag/MoO 3 (ZAM) multilayer electrodes deposited directly on glass substrates by a combination of radio frequency (RF) and direct current (DC) sputtering for bulk-heterojunction organic solar cells (OSCs). Compared to indium tin oxide (ITO) electrodes showing 20 Ω/sq, the transparent composite electrodes (TCE) in this study exhibited very low sheet resistance of 5 Ω/sq without post annealing. In addition, as a hole transport layer, the MoO3 performed with a higher fill factor than PEDOT:PSS due to lower series resistance, resulting in a power conversion efficiency of 2.3%, Voc of 0.59 V, and Jsc of 9 mA/cm2. The power conversion efficiency of the OSC with the ZAM electrode is lower than that of organic solar cells on ITO which has 3.3% efficiency, due to lower transmittance after MoO3 layer deposition. However, our results do support the possibility of using MoO3 as both Ag protecting and hole transport layers for indium-less and PEDOT:PSS-less bulk-heterojunction OSCs.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 446-450 |
| Number of pages | 5 |
| Journal | Solar Energy Materials and Solar Cells |
| Volume | 117 |
| DOIs | |
| State | Published - 2013 |
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Keywords
- Bulk heterojunction
- MoO
- Organic solar cell
- Zinc oxide
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Electronic, Optical and Magnetic Materials
- Surfaces, Coatings and Films
Cite this
ZnO-Ag-MoO3 transparent composite electrode for ITO-free, PEDOT : PSS-free bulk-heterojunction organic solar cells. / Choi, Hyung Woo; Theodore, N. David; Alford, Terry.
In: Solar Energy Materials and Solar Cells, Vol. 117, 2013, p. 446-450.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - ZnO-Ag-MoO3 transparent composite electrode for ITO-free, PEDOT
T2 - PSS-free bulk-heterojunction organic solar cells
AU - Choi, Hyung Woo
AU - Theodore, N. David
AU - Alford, Terry
PY - 2013
Y1 - 2013
N2 - We report on the electrical and optical properties of ZnO/Ag/MoO 3 (ZAM) multilayer electrodes deposited directly on glass substrates by a combination of radio frequency (RF) and direct current (DC) sputtering for bulk-heterojunction organic solar cells (OSCs). Compared to indium tin oxide (ITO) electrodes showing 20 Ω/sq, the transparent composite electrodes (TCE) in this study exhibited very low sheet resistance of 5 Ω/sq without post annealing. In addition, as a hole transport layer, the MoO3 performed with a higher fill factor than PEDOT:PSS due to lower series resistance, resulting in a power conversion efficiency of 2.3%, Voc of 0.59 V, and Jsc of 9 mA/cm2. The power conversion efficiency of the OSC with the ZAM electrode is lower than that of organic solar cells on ITO which has 3.3% efficiency, due to lower transmittance after MoO3 layer deposition. However, our results do support the possibility of using MoO3 as both Ag protecting and hole transport layers for indium-less and PEDOT:PSS-less bulk-heterojunction OSCs.
AB - We report on the electrical and optical properties of ZnO/Ag/MoO 3 (ZAM) multilayer electrodes deposited directly on glass substrates by a combination of radio frequency (RF) and direct current (DC) sputtering for bulk-heterojunction organic solar cells (OSCs). Compared to indium tin oxide (ITO) electrodes showing 20 Ω/sq, the transparent composite electrodes (TCE) in this study exhibited very low sheet resistance of 5 Ω/sq without post annealing. In addition, as a hole transport layer, the MoO3 performed with a higher fill factor than PEDOT:PSS due to lower series resistance, resulting in a power conversion efficiency of 2.3%, Voc of 0.59 V, and Jsc of 9 mA/cm2. The power conversion efficiency of the OSC with the ZAM electrode is lower than that of organic solar cells on ITO which has 3.3% efficiency, due to lower transmittance after MoO3 layer deposition. However, our results do support the possibility of using MoO3 as both Ag protecting and hole transport layers for indium-less and PEDOT:PSS-less bulk-heterojunction OSCs.
KW - Bulk heterojunction
KW - MoO
KW - Organic solar cell
KW - Zinc oxide
UR - http://www.scopus.com/inward/record.url?scp=84880913663&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84880913663&partnerID=8YFLogxK
U2 - 10.1016/j.solmat.2013.07.009
DO - 10.1016/j.solmat.2013.07.009
M3 - Article
AN - SCOPUS:84880913663
VL - 117
SP - 446
EP - 450
JO - Solar Energy Materials and Solar Cells
JF - Solar Energy Materials and Solar Cells
SN - 0927-0248
ER -