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Structural and Electrical Properties of Aluminum Doped ZnO Electrodes Prepared by Atomic Layer Deposition for Application in Organic Solar Cells  

Seo, Injun (Department of Electronics engineering, Dankook University)
Ryu, Sang Ouk (Department of Electronics engineering, Dankook University)
Publication Information
Journal of the Semiconductor & Display Technology / v.13, no.2, 2014 , pp. 1-5 More about this Journal
Abstract
Transparent and conducting aluminum-doped ZnO electrodes were fabricated by atomic layer deposition methods. The electrode showed the lowest resistivity of $5.73{\times}10^{-4}{\Omega}cm$ at a 2.5% cyclic layer deposition ratio of Trimethyl-aluminum and Diethyl-zinc chemicals. The electrodes showed minimum resistivity when deposited at a temperature of $225^{\circ}C$. The electrode also showed optical transmittance of about 92% at 300 nm. An organic solar cell made with a 300-nm-thick aluminum-doped ZnO electrode exhibited 2.0% power conversion efficiency.
Keywords
Organic solar cell; P3HT; PCBM; TMA; Bulk hetero Junction; PCE;
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