We demonstrate an efficient Si-based top-emitting organic light-emitting diode using a fluorescent emitting system composed of a green dye of 9,10-bis(m-tolylphenylamino)anthracene (TPA) doped into a blue matrix of 9,9',10,10'-tetraphenyl-2,2'-bianthracene (TPBA). The device shows green emission with a maximum luminous efficiency of 3.3 cd/A and a power efficiency of 2.3 lm/W. The maximum luminance reaches 1.3 x 10(4) cd/m(2) at a driving voltage of 12 V. The excellent performances partially resulted from effective energy transfer in the emitting system of [TPBA: 2 wt.% TPA]. In addition, the emission spectra exhibit negligible variation with increasing viewing angles, indicating a weak microcavity effect because of low reflectance of Si anode. (C) 2011 Elsevier B.V. All rights reserved.