Unravelling the photovoltaic response of butterfly-shaped fulvene based chromophores with the influence of double acceptor moieties: a DFT approach - Khalid, Muhammad; Kousar, Shehla; Haq, Saadia; Braga, Ataualpa Albert Carmo; Akram, Muhammad Yasir; Alotaibi, Rajeh (Journal of Industrial and Engineering Chemistry, 2025)