N. A. Buruhanutheen, A. S. Abdullah, M. H. I. Ibrahim, F. Ahmad, and M. H. Ibrahim, “Modelling of Germanium-Based Perovskite Solar Cell for Different Hole Transport Materials and Defect Density ”, Photonics Lett. Pol., vol. 15, no. 3, pp. 45–47, Sep. 2023.