Gad, A.E.; Hoffmann, M.W.G.; Hernandez-Ramirez, F.; Prades, J.D.; Shen, H.; Mathur, S. "Coaxial p-Si/n-ZnO nanowire heterostructures for energy and sensing applications" Materials Chemistry and Physics 135, 42431, pp. 618 - 622. 2012 DOI: 10.1016/j.matchemphys.2012.05.034