Tin-Based Perovskite Solar Cells Containing a Perylene Diimide Cathode Interlayer with a Copper Top Electrode

Publication Type

Journal Article

Name of Author

• Jorim Okoth Obila, Department of Physics, Faculty of Science and Technology, University of Nairobi, Kenya
• Du Hyeon Ryu, Department of Chemical and Biological Engineering, Korea University (KU), Seoul Republic of Korea
• Sora Oh, Advanced Energy Materials Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon Republic of Korea
• Jun Hyung Kim, Advanced Energy Materials Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon Republic of Korea
• Robinson Juma Musembi, Department of Physics, Faculty of Science and Technology, University of Nairobi, Kenya
• Seungjin Lee, Advanced Energy Materials Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon Republic of Korea
• Bong Joo Kang, Advanced Energy Materials Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon Republic of Korea
• Nam Joong Jeon, Advanced Energy Materials Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon , Republic of Korea
• Elijah Omollo Ayieta, Department of Physics, Faculty of Science and Technology, University of Nairobi, Kenya
• Sang Hyuk Im, Department of Chemical and Biological Engineering, Korea University (KU), Seoul Republic of Korea
• Chang Eun Song, Advanced Energy Materials Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon Republic of Korea

Publication Date (Issue Year)

2024

Journal Name

American Chemical Society

Abstract

Interfacial modulation is crucial for optimizing charge carrier management and thwarting undesired ion-metal diffusion in perovskite photovoltaics. This study highlights a groundbreaking approach, employing semiconducting perylene-diimide (PDINN) as a cathode interlayer (CIL) in an inverted tin halide perovskite solar cell (THPSC). PDINN imparts the THPSCs with a remarkable efficiency rate of 13.05% as well as substantial stability, achieving the best performance among reported THPSCs thus far. The incorporation of PDINN improves the energy level alignment and mitigates the interfacial trap density, with PDINN also serving as a robust diffusion barrier to Cu and I ions due to the strong interactions between it and the PC61BM electron transport layer or the Cu cathode. The PDINN CIL introduced in this study is a pioneering application in THPSCs that concurrently boosts efficiency while also ensuring unprecedented stability.

Keywords

Electrodes, Layers, Photovoltaics, Stability, X-ray photoelectron spectroscopy

Grantee Name(s)

Jorim Okoth Obila

Project Title

Self-cleaning solar module for enhanced electrical output

Type of Grant

Research Award

Thematic Area

Energy including Renewables

Recommended Citation

Obila, J. O., Ryu, D. H., Oh, S., Kim, J. H., Musembi, R. J., Lee, S., Kang, B. J., Jeon, N. J., Ayieta, E. O., Im, S. H., & Song, C. E. (2024). Tin-Based Perovskite Solar Cells Containing a Perylene Diimide Cathode Interlayer with a Copper Top Electrode. American Chemical Society https://doi.org/10.1021/acsenergylett.3c02795