Kumar, P. , Eisenhauer, D. , Yousef, M. , Shi, Q. , Khalil, A. , Saber, M. , Becker, C. , Pullerits, T. , Karki, K.. "Photoimpedance Spectroscopy Analysis of Planar and Nano-Textured Thin-Film Silicon Solar Cells". World Academy of Science, Engineering and Technology, Open Science Index 134, International Journal of Physical and Mathematical Sciences (2018), 12(2), 57 - 61.