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Coatings 2017, 7(3), 36; doi:10.3390/coatings7030036

Effect of Electrochemically Deposited MgO Coating on Printable Perovskite Solar Cell Performance

1
Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan
2
Department of Materials and Synchrotron Radiation Engineering, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Hyogo, Himeji 671-2280, Japan
3
Graduate School of Engineering, Toin University of Yokohama, Kanagawa, Yokohama 225-8503, Japan
4
Department of General Systems Studies, Graduate School of Arts and Science, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
*
Authors to whom correspondence should be addressed.
Academic Editor: I. M. Dharmadasa
Received: 5 January 2017 / Revised: 31 January 2017 / Accepted: 12 February 2017 / Published: 27 February 2017
(This article belongs to the Special Issue Thin Film Semiconductors for Photovoltaic Applications)
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Abstract

Herein, we studied the effect of MgO coating thickness on the performance of printable perovskite solar cells (PSCs) by varying the electrodeposition time of Mg(OH)2 on the fluorine-doped tin oxide (FTO)/TiO2 electrode. Electrodeposited Mg(OH)2 in the electrode was confirmed by energy dispersive X-ray (EDX) analysis and scanning electron microscopic (SEM) images. The performance of printable PSC structures on different deposition times of Mg(OH)2 was evaluated on the basis of their photocurrent density-voltage characteristics. The overall results confirmed that the insulating MgO coating has an adverse effect on the photovoltaic performance of the solid state printable PSCs. However, a marginal improvement in the device efficiency was obtained for the device made with the 30 s electrodeposited TiO2 electrode. We believe that this undesirable effect on the photovoltaic performance of the printable PSCs is due to the higher coverage of TiO2 by the insulating MgO layer attained by the electrodeposition technique. View Full-Text
Keywords: MgO; Mg(OH)2; electrodeposition; printable; perovskite; solar cells MgO; Mg(OH)2; electrodeposition; printable; perovskite; solar cells
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MDPI and ACS Style

Peiris, T.A.N.; Baranwal, A.K.; Kanda, H.; Fukumoto, S.; Kanaya, S.; Bessho, T.; Cojocaru, L.; Miyasaka, T.; Segawa, H.; Ito, S. Effect of Electrochemically Deposited MgO Coating on Printable Perovskite Solar Cell Performance. Coatings 2017, 7, 36.

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