T. Elmore, J. Candler, F. Yakuphanoglu and R.K. Gupta  2015. Carrier Transport Mechanism of Copper Phthalocyanine Based Photodiode for Solar Cell Applications. Journal of Solar Energy Research Updates. 2, 1 (Sep. 2015), 18–23. DOI:https://doi.org/10.15377/2410-2199.2015.02.01.4.