Low-Temperature Cross-Linkable Small Molecules for Fully Solution-Processed OLEDs

Sungkoo Lee; Min Hye Seo

doi:10.1002/chem.201803308

Low-Temperature Cross-Linkable Small Molecules for Fully Solution-Processed OLEDs

Chemistry. 2018 Nov 27;24(66):17419-17423. doi: 10.1002/chem.201803308. Epub 2018 Oct 30.

Authors

Sungkoo Lee¹, Min Hye Seo¹

Affiliation

¹ IT Convergence Materials Group, Korea Institute of Industrial Technology (KITECH), Choongnam-do, 31056, Korea.

PMID: 30221405
DOI: 10.1002/chem.201803308

Abstract

Cross-linkable hole-transporting, host, and electron-transporting materials with a new cross-linking group, uracil, are designed and synthesized. These compounds exhibited good solubility in common organic solvents and excellent solvent resistance after cross-linking at a low temperature of 120 °C. The OLED was fabricated by all-solution processing using cross-linkable synthetic compounds, except for the electrodes. This device exhibited a current efficiency of 39.2 cd A^-1 and a power efficiency of 15.3 lm W^-1 .

Keywords: OLEDs; molecular electronics; organic electronics; solution process; thermal-crosslink; uracil.