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Effects of Annealing Conditions on ZnO Buffer Layer for Inverted Polymer Solar Cells

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DOI: 10.4236/opj.2013.32B052    3,179 Downloads   4,996 Views   Citations

ABSTRACT

A solution-processed zinc oxide (ZnO) thin film as the buffer layer with optimized processes especially the annealing conditions for inverted polymer solar cells (PSCs) has been demonstrated. Firstly the thickness of ZnO buffer layer was optimized, and different annealing conditions including temperature and time have also been taken into consideration. And the best Power Conversion Efficiency (PCE) 3.434% was observed when the ZnO buffer layer was spin–coated at 1500 rpm and annealed at 275 for 5 min, and AFM results showed that morphology of this ZnO film has the best uniformity which was beneficial to form high quality polymer composite active layer.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

C. Liu, L. Zheng, Z. Gao, Y. Gan, J. Zhang and C. Li, "Effects of Annealing Conditions on ZnO Buffer Layer for Inverted Polymer Solar Cells," Optics and Photonics Journal, Vol. 3 No. 2B, 2013, pp. 222-226. doi: 10.4236/opj.2013.32B052.

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