【摘 要】
：
We fabricate the organic photovoltaic (P V) devices, in which 4,4,4"-tris-(2-methylphenylphenylamino)triphenylamine (m-MTDATA) and rare earth (RE) (dibenzoylmet
【机 构】
：
College of Chemistry and Chemical Engineering, China University of Petroleum, Dongying, Shandong 257
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We fabricate the organic photovoltaic (P V) devices, in which 4,4,4"-tris-(2-methylphenylphenylamino)triphenylamine (m-MTDATA) and rare earth (RE) (dibenzoylmethanato)3(bathohenanthroline) (RE(DBM)3bath) (RE = Nd or Pr) are used as electron donor and acceptor, and investigate their PV properties. The PV diode fabricated in the ptimum processing conditions shows the open-circuit voltage of 1.91 V, short-circuit current of 0.1mA/cm2, fill factor of 0.38, and the overall power conversion efficiency of 1.9% when it is irradiated under UV light (4mW/cm2). The photocurrent density exhibits an increase of 20% at least when a very thin LiF layer is inserted between the RE-complexes and the Al cathode. A strong electroluminescence from the interface is also observed and the maximum luminance of a yellow emission resulted from the exciplex is 580 cd/m2 at 17V bias.
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