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Updated: Apr 21, 2026
Development of Efficient OLEDs from Solution Deposition
Published on: November 4, 2022
High-efficiency, solution-processed, multilayer phosphorescent organic light-emitting diodes with a copper
Ajay Perumal1, Hendrik Faber, Nir Yaacobi-Gross
1Department of Physics and Centre for Plastic Electronics, Blackett Laboratory, Imperial College London, London, SW7 2AZ, UK.
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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.
