Structural, electrical and optical properties of ZnO:Al films deposited on flexible organic substrates for solar cell applications |
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| Authors: | Jaehyeong Lee Dongjin Lee Keajoon Yang |
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| Affiliation: | a School of Electronics and Information Engineering, Kunsan National University, Kunsan, South Korea
b Department of Electronic Engineering, Chungju National University, Chungju, South Korea |
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| Abstract: | Aluminum doped ZnO thin films (ZnO:Al) were deposited on glass and poly carbonate (PC) substrate by r.f. magnetron sputtering. In addition, the electrical, optical properties of the films prepared at various sputtering powers were investigated. The XRD measurements revealed that all of the obtained films were polycrystalline with the hexagonal structure and had a preferred orientation with the c-axis perpendicular to the substrate. The ZnO:Al films were increasingly dark gray colored as the sputter power increased, resulting in the loss of transmittance. High quality films with the resistivity as low as 9.7 × 10− 4 Ω-cm and transmittance over 90% have been obtained by suitably controlling the r.f. power. |
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| Keywords: | Al-doped ZnO (ZnO:Al) Sputtering Flexible substrate Solar cell |
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