The role of structural parameters on efficiency and transparency of semi-transparent non-fullerene organic solar cell

Elmira Annabi Milani; Mina Piralaee; Sohrab Ahmadi; Asghar Asgari

doi:10.1038/s41598-022-19346-7

The role of structural parameters on efficiency and transparency of semi-transparent non-fullerene organic solar cell

Sci Rep. 2022 Sep 2;12(1):14928. doi: 10.1038/s41598-022-19346-7.

Authors

Elmira Annabi Milani^{1

2}, Mina Piralaee², Sohrab Ahmadi¹, Asghar Asgari^{3

4

5}

Affiliations

¹ Faculty of Physics, University of Tabriz, Tabriz, 51665-163, Iran.
² Photonics Devices Research Group, Research Institute of Applied Physics and Astronomy, University of Tabriz, Tabriz, 51665-163, Iran.
³ Faculty of Physics, University of Tabriz, Tabriz, 51665-163, Iran. asgari@tabrizu.ac.ir.
⁴ Photonics Devices Research Group, Research Institute of Applied Physics and Astronomy, University of Tabriz, Tabriz, 51665-163, Iran. asgari@tabrizu.ac.ir.
⁵ School of Electrical, Electronic, and Computer Engineering, University of Western Australia, Crawley, WA, 6009, Australia. asgari@tabrizu.ac.ir.

Abstract

Semitransparent organic solar cells have become attractive recently because of their photon harvesting in the near-infrared and ultraviolet range and passing in the visible light region. Semitransparent organic solar cells with ITO/ZnO/PBDB-T:ITIC/MoO3/Ag/MoO3 structure have been studied in this work and the effects of PBDB-T:ITIC active layer thicknesses and the transparent top electrode, MoO₃/Ag/MoO₃, thickness on the solar cell performance such as I-V characteristics, the power conversion efficiency, the average visible transmittance, and the color coordinates in the CIE color space are investigated. The drift-diffusion model, including the density of exactions, and their displacement is used to model the devices. The model is examined with experimentally reported devices, where there is a very good agreement between them, then is applied to the new structures. The obtained results show that the average visible transmittance of more than 45% is achievable for these structures with reasonable power conversion efficiency.