Crystal Organic Light-Emitting Diodes with Perfectly Oriented Non-Doped Pt-Based Emitting Layer

Organic light‐emitting diodes with external quantum efficiency of 38.8% are realized using a Pt‐based thin‐film emitting layer with photoluminescence quantum yield of 96% and transition dipole ratio of 93%. The emitting dipole orientation of the thin films fabricated using Pt complexes is investigat...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2016-04, Vol.28 (13), p.2526-2532
Main Authors: Kim, Kwon-Hyeon, Liao, Jia-Ling, Lee, Si Woo, Sim, Bomi, Moon, Chang-Ki, Lee, Gene-Hsiang, Kim, Hyo Jung, Chi, Yun, Kim, Jang-Joo
Format: Article
Language:English
Subjects:
Crystal structure
Diodes
Dipoles
Emittance
Materials science
Mathematical analysis
Organic chemistry
Organic light emitting diodes
oriented crystals
phosphorescent OLEDs
Photoluminescence
Platinum
platinum complexes
Quantum chemistry
Quantum efficiency
Structural analysis
Thin films
X-rays
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Summary:Organic light‐emitting diodes with external quantum efficiency of 38.8% are realized using a Pt‐based thin‐film emitting layer with photoluminescence quantum yield of 96% and transition dipole ratio of 93%. The emitting dipole orientation of the thin films fabricated using Pt complexes is investigated and the structural relationship between X‐ray structural analysis and the structures in thin films are discussed based on quantum chemical calculations.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201504451