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Photonics
Volume 9
Issue 11
10.3390/photonics9110791
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Communication

Ethylammonium Bromide- and Potassium-Added CH3NH3PbI3 Perovskite Solar Cells

by
Shuhei Terada
1,
Takeo Oku
1,*,
Atsushi Suzuki
1,
Masanobu Okita
2,
Sakiko Fukunishi
2,
Tomoharu Tachikawa
2 and
Tomoya Hasegawa
2
1
Department of Materials Science, The University of Shiga Prefecture, 2500 Hassaka, Hikone 522-8533, Japan
2
Osaka Gas Chemicals Company, Limited, 5-11-61 Torishima, Konohana-ku, Osaka 554-0051, Japan
*
Author to whom correspondence should be addressed.
Photonics 2022, 9(11), 791; https://doi.org/10.3390/photonics9110791
Submission received: 24 September 2022 / Revised: 14 October 2022 / Accepted: 21 October 2022 / Published: 24 October 2022
(This article belongs to the Special Issue Commercializing Perovskite Photovoltaics)
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Abstract

Perovskite solutions with added potassium iodide (KI) and ethylammonium bromide (EABr) were used to fabricate perovskite solar cells in ordinary air at 190 °C. The addition of EABr and KI induced (100)-oriented perovskite crystals, which resulted in the improvement in short-circuit current densities and conversion efficiencies. The short-circuit current density, open circuit voltage, and conversion efficiency of the best device were 21.0 mA cm−2, 0.942 V, and 12.88%, respectively. First-principles calculations also indicated a decrease in total energy per cell and an increase in energy gaps, which agreed with the improved results of device stabilities and photovoltaic properties.
Keywords: perovskite; solar cells; ethylammonium; potassium perovskite; solar cells; ethylammonium; potassium

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MDPI and ACS Style

Terada, S.; Oku, T.; Suzuki, A.; Okita, M.; Fukunishi, S.; Tachikawa, T.; Hasegawa, T. Ethylammonium Bromide- and Potassium-Added CH3NH3PbI3 Perovskite Solar Cells. Photonics 2022, 9, 791. https://doi.org/10.3390/photonics9110791

AMA Style

Terada S, Oku T, Suzuki A, Okita M, Fukunishi S, Tachikawa T, Hasegawa T. Ethylammonium Bromide- and Potassium-Added CH3NH3PbI3 Perovskite Solar Cells. Photonics. 2022; 9(11):791. https://doi.org/10.3390/photonics9110791

Chicago/Turabian Style

Terada, Shuhei, Takeo Oku, Atsushi Suzuki, Masanobu Okita, Sakiko Fukunishi, Tomoharu Tachikawa, and Tomoya Hasegawa. 2022. "Ethylammonium Bromide- and Potassium-Added CH3NH3PbI3 Perovskite Solar Cells" Photonics 9, no. 11: 791. https://doi.org/10.3390/photonics9110791

APA Style

Terada, S., Oku, T., Suzuki, A., Okita, M., Fukunishi, S., Tachikawa, T., & Hasegawa, T. (2022). Ethylammonium Bromide- and Potassium-Added CH3NH3PbI3 Perovskite Solar Cells. Photonics, 9(11), 791. https://doi.org/10.3390/photonics9110791

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