TY - JOUR
T1 - Photovoltaic effects of diodes containing lanthanide complexes
AU - Chu, B.
AU - Li, W. L.
AU - Wei, H. Z.
AU - Wang, D. Y.
AU - Li, M. T.
AU - Zhang, Z. Q.
AU - Hu, Z. Z.
AU - Lee, C. S.
AU - Lee, S. T.
PY - 2005/3/8
Y1 - 2005/3/8
N2 - We present a systematic study of organic photovoltaic (PV) diodes containing a series of lanthanide (Ln) complexes, tris(dibenzoylmethanato) (monobathophenanthroline) (Ln)(III) [Ln(DBM)3 bath] used as an electron acceptor. For making a convenient comparison among all diodes, they were fabricated by adopting the same structure, ITO/N,N′-diphenyl-N, N′-bis(3-methylphenyl)-l,l′-diphenyl-4,4′-diamine (TPD) (30 nm)/Ln(DBM)3 bath (60 nm)/Mg:Ag (200 nm), which was not optimized. Although these diodes under bias voltage almost show an exciplex emission relating to PV effects, they indicate distinct performances due to their different 4f electrons and fn configurations. Especially, the PV effects of the diodes containing La3+ (4f0), Y 3+ (4f0), Gd3+ (4f7), and Lu 3+ (4f14)-complexes having the relative stable electron configurations in the 4f orbital are best under illumination with 365 nm UV light. And the diodes containing Pr3+-, Yb3+-, and Sm 3+-complexes have better PV effects, the other diodes containing Ln(DBM)3 bath (Ln: Nd, Eu, Tb, Dy, Ho, Er and Tm) only show poor PV effects. © 2004 Elsevier B.V. All rights reserved.
AB - We present a systematic study of organic photovoltaic (PV) diodes containing a series of lanthanide (Ln) complexes, tris(dibenzoylmethanato) (monobathophenanthroline) (Ln)(III) [Ln(DBM)3 bath] used as an electron acceptor. For making a convenient comparison among all diodes, they were fabricated by adopting the same structure, ITO/N,N′-diphenyl-N, N′-bis(3-methylphenyl)-l,l′-diphenyl-4,4′-diamine (TPD) (30 nm)/Ln(DBM)3 bath (60 nm)/Mg:Ag (200 nm), which was not optimized. Although these diodes under bias voltage almost show an exciplex emission relating to PV effects, they indicate distinct performances due to their different 4f electrons and fn configurations. Especially, the PV effects of the diodes containing La3+ (4f0), Y 3+ (4f0), Gd3+ (4f7), and Lu 3+ (4f14)-complexes having the relative stable electron configurations in the 4f orbital are best under illumination with 365 nm UV light. And the diodes containing Pr3+-, Yb3+-, and Sm 3+-complexes have better PV effects, the other diodes containing Ln(DBM)3 bath (Ln: Nd, Eu, Tb, Dy, Ho, Er and Tm) only show poor PV effects. © 2004 Elsevier B.V. All rights reserved.
KW - Exciplex
KW - Lanthanide complexes
KW - Organic photovoltaic diodes
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U2 - 10.1016/j.jallcom.2004.06.102
DO - 10.1016/j.jallcom.2004.06.102
M3 - RGC 21 - Publication in refereed journal
SN - 0925-8388
VL - 389
SP - 252
EP - 255
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
IS - 1-2
ER -
