Charge carriers bulk recombination instead of electroplex emission after their tunneling through hole-blocking layer in OLEDsS. Y. Yang, D. Liu, Y. Jiang, F. Teng, Z. Xu, Y. Hou and X. R. XuEur. Phys. J. B, 52 3 (2006) 329-332DOI: https://doi.org/10.1140/epjb/e2006-00309-4