Khan, Firoz. (2014-03). Enhanced performance of silicon solar cells by application of low-cost sol-gel-derived Al-rich ZnO film. Solar Energy, 101, 265–271. doi: 10.1016/j.solener.2013.12.025
Khan, Firoz. (2014-12). Influence of Al content on surface passivation properties of Al rich ZnO films for solar cell application. Solar Energy, 110, 595–602. doi: 10.1016/j.solener.2014.08.035