Ge. Jabbour et al., High T-g hole transport polymers for the fabrication of bright and efficient organic light-emitting devices with an air-stable cathode, IEEE J Q EL, 36(1), 2000, pp. 12-17
An organic electroluminescent device with a luminous efficiency of 20 Im/W,
at 14 cd/m(2), and an external quantum efficiency of 4.6% has been fabrica
ted using a high T-g hole transport polymer, a small molecule emission laye
r, and a LiF/AL cathode. The device quantum efficiency can be increased by
tuning the ionization potential of the hole-transport moieties, When tested
under pulsed voltage mode, in air at room temperature, and without any enc
apsulation, the device showed a high peak brightness of 4.4 x 10(6) cd/m(2)
at 100 A/cm(2) and an efficiency of 4.4 cd/A.