Optoelectronics Letters, Volume. 11, Issue 5, 329(2015)
Improving the performance of inverted organic solar cells by adjusting the concentration of precursor solution of Al-doped ZnO
Al-doped ZnO (AZO) has been used as an electron transport and hole blocking buffer layer in inverted organic solar cells (IOSCs). In this paper, the AZO morphology, optical and structural properties and IOSCs performance are investigated as a function of precursor solution concentration from 0.1 mol/L to 1.0 mol/L. We demonstrate that the device with 0.1 mol/L precursor concentration of AZO buffer layers enhances the short-circuit current and the fill factor of IOSCs simultaneously. The resulting device shows that the power conversion efficiency is improved by 35.6% relative to that of the 1.0 mol/L device, due to the improved surface morphology and transmittance (300–400 nm) of AZO buffer layer.
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YU Xuan, YU Xiao-ming, ZHANG Jian-jun, PAN Hong-jun. Improving the performance of inverted organic solar cells by adjusting the concentration of precursor solution of Al-doped ZnO[J]. Optoelectronics Letters, 2015, 11(5): 329
Received: Jul. 5, 2015
Accepted: --
Published Online: Oct. 12, 2017
The Author Email: Jian-jun ZHANG (jjzhang@nankai.edu.cn)