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

Kim, Kwon-Hyeon; Liao, Jia-Ling; Lee, Si Woo; Sim, Bomi; Moon, Chang-Ki; Lee, Gene-Hsiang; Kim, Hyo Jung; Chi, Yun et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

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.