Highly Efficient Polymeric Electrophosphorescent Diodes | Zendy

Yang X. | Zendy; Müller D. C. | Zendy; Neher D. | Zendy; Meerholz K. | Zendy

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Highly Efficient Polymeric Electrophosphorescent Diodes

Author(s) -

Yang X.,

Müller D. C.,

Neher D.,

Meerholz K.

Publication year - 2006

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.200501867

Subject(s) - materials science , oxetane , oled , optoelectronics , diode , exciton , light emitting diode , doping , blocking (statistics) , nanotechnology , polymer chemistry , computer science , layer (electronics) , computer network , physics , quantum mechanics

Polymeric electrophosphorescent LEDs with internal quantum efficiencies approaching unity have been fabricated. Such performance levels are previously unknown for OLEDs. The key to this success is redox chemically doped oxetane‐crosslinkable hole‐transporting layers with multilayer capability (see figure). They improve hole injection and act as electron‐blocking layers, without the need to include exciton‐ or hole‐blocking layers.

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