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Cd-free wide gap CuIn1-xGaxSe2 (CIGS) solar cells were fabricated. Un-doped Zn1-yMgy O (ZMO) and Al-doped Zn1-yMgyO (AZMO) were used as window and transparent conducting (TC) layers, respectively. These layers were deposited by both RF-sputtering and pulsed laser deposition (PLD). While the Cd-free cells fabricated using RF-sputtering showed no solar cell response, these using PLD had solar cell properties...
Low resistivity and highly transparent ZnO conducting films for thin film solar cell applications were fabricated at low temperature by pulsed laser deposition. Al-, B- and Ga-doped ZnO films were deposited on Corning 7059 glass substrate at a substrate temperature of 200 o C. The Al-doped ZnO films were found to have the lowest resistivity of 2.5x10 -4 Ωcm and an average optical...
Transparent and conductive Al-doped ZnO films have been deposited at room temperature by oxygen radical-assisted pulsed laser deposition. An average optical transmittance of more than 86% (0.7 μm film thickness) in the wavelength range 400-800 nm and resistivity as low as 5x10 -4 Ω cm were obtained from films deposited using a radical oxygen source. The surface roughness of the ZnO films...
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