Light Engineering towards Highly Efficient Organic Solar Cells by M13 Bacteriophage
Minju Jun a, Thanh Mien Nguyen a, Jin-Woo Oh a, Ji-Youn Seo a
a Pusan National University, South Korea, Jangjeon-dong, Guemjeong-gu, Busan, 609735, Busan, Korea, Republic of
International Conference on Hybrid and Organic Photovoltaics
Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV22)
València, Spain, 2022 May 19th - 25th
Organizers: Pablo Docampo, Eva Unger and Elizabeth Gibson
Poster, Minju Jun, 243
Publication date: 20th April 2022

Organic solar cells (OSCs) have shown rapid progress in recent decades. In particular, as the development of electron donor polymers and non-fullerene acceptors accelerated, the power conversion efficiency (PCE) has been improved up to 19%. However, there is a limit to increase the efficiency of OSCs due to the saturation of new materials development. Herein, we improved the efficiency of OSCs by light engineering to enhance the transmission of incident light into the active layer resulting increased photocurrent density. We found that M13 bacteriophages are effective at increasing the light absorption by manipulating sunlight such as an anti-reflection coating layer between ITO and hole transport layer (HTL). To analyze the optical property of M13 bacteriophage layer, transmittance was measured with UV-vis spectroscopy. As a result, the transmittance was increased at 300-400 nm, where donor polymer PM6 has absorption wavelength. Consequently, OSCs employed M13 bacteriophage layer between ITO and HTL showed approximately 13% higher photocurrent density(Jsc). with 23.8mA/cm2 (Jsc), 0.85V (Voc), 0.70 (FF) and 14.1% PCE. These results present the potential of M13 bacteriophage to enhance the efficiency of organic solar cells.

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