Among the various photovoltaic organic materials, a novel tunable dielectric material has been developed by mixing 1.5:1 parts of the donor polymer PM6 (PBDB-T-2F) and the non-fullerene acceptor molecule Y7 (BTP-4Cl). PM6 is a p-type semiconducting material that is widely recognized for its efficiency in solar cell applications. Boasting a band gap of 2.1 eV and high hole mobility, PM6 is ideal for low-temperature, solutionprocessable devices such as thin-film transistors and organic solar cells . On the other hand, Y7, known for its low band gap, excellent organic solubility, and thermal stability, shows high performance in various device architectures, pairing effectively with conjugated polymers for superior charge transfer and minimal dark leakage current . In particular, the PM6:Y7 blend exhibits high stability under illumination and ambient conditions, coupled with impressive charge transfer, leading to notable dielectric nonlinearity.