High-efficiency, solution-processed, multilayer phosphorescent organic light-emitting diodes with a copper thiocyanate hole-injection/hole-transport layer.
Copper thiocyanate (CuSCN) is introduced as a hole-injection/hole-transport layer (HIL/HTL) for solution-processed organic light-emitting diodes (OLEDs). The OLED devices reported here with CuSCN as HIL/HTL perform significantly better than equivalent devices fabricated with a PEDOT:PSS HIL/HTL, and solution-processed, phosphorescent, small-molecule, green OLEDs with maximum luminance ≥10 000 cd m(-2) , maximum luminous efficiency ≤50 cd A(-1) , and maximum luminous power efficiency ≤55 lm W(-1) are demonstrated.
Department of Physics and Centre for Plastic Electronics, Blackett Laboratory, Imperial College London, London, SW7 2AZ, UK.
Ajay
A
Perumal
Hendrik
H
Faber
Nir
N
Yaacobi-Gross
Pichaya
P
Pattanasattayavong
Claire
C
Burgess
Shrawan
S
Jha
Martyn A
MA
McLachlan
Paul N
PN
Stavrinou
Thomas D
TD
Anthopoulos
Donal D C
DD
Bradley
copper thiocyanate; solution-processed PHOLEDs; wide bandgap p-type semiconductor