Study on the Transient Electroluminescence of Phosphorescent OLEDs

Cited 5 time in webofscience Cited 0 time in scopus
  • Hit : 514
  • Download : 0
We have studied the turn-off dynamics of phosphorescent organic light-emitting diodes (OLEDs) by investigating the temperature, pulse width, and voltage dependences of the radiative triplet lifetime with the dispersive parameter gamma, calculated from the second luminescence of the transient electro-luminescence. This behavior is caused by the redistribution and recombination of electrons and holes accumulated near the interfaces. The lifetime increases with increasing carrier density and with decreasing temperature. This is due to the decrease in the hopping and the triplet-triplet annihilation rates. The experimental data satisfy the relationship between the dispersive parameter gamma and temperature T, gamma - 1 proportional to exp(-A/T), with a constant A.
Publisher
KOREAN PHYSICAL SOC
Issue Date
2009-09
Language
English
Article Type
Article; Proceedings Paper
Keywords

LIGHT-EMITTING-DIODES; INDIUM-TIN-OXIDE; ELECTROPHOSPHORESCENCE

Citation

JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.55, pp.1111 - 1114

ISSN
0374-4884
URI
http://hdl.handle.net/10203/95896
Appears in Collection
PH-Journal Papers(저널논문)AE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 5 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0