@article{articled2bf1994,
title   = {Observation of persistent photoconductivity in vanadyl phthalocyanine},
author = {Santos, L. F. and Faria, Roberto Mendonça and Del Caño, T. and Saja, J. A. de and Constantino, C. J. L. and Amorim, C. A. and Mergulhão, S.},
year = {2008},
doi = {10.1088/0022-3727/41/12/125107},
journal   = {Journal of Physics D}
}