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Low‐Temperature Cross‐Linkable Small Molecules for Fully Solution‐Processed OLEDs
Author(s) -
Lee Sungkoo,
Seo Min Hye
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201803308
Subject(s) - oled , materials science , solubility , solvent , electrode , small molecule , molecule , optoelectronics , chemical engineering , nanotechnology , chemistry , organic chemistry , biochemistry , layer (electronics) , engineering
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 .