TY - JOUR
T1 - Above 20% external quantum efficiency in thermally activated delayed fluorescence device using furodipyridine-type host materials
AU - Im, Yirang
AU - Lee, Jun Yeob
PY - 2014/2/11
Y1 - 2014/2/11
N2 - High efficiency green thermally activated delayed fluorescence device with a quantum efficiency above 20% was developed using a bipolar host material, 3-(furo[2,3-b:5,4-b′]dipyridin-3-yl)-N,N-diphenylaniline (3TPAPFP), derived from furodipyridine core structure. The furodipyridine based 3TPAPFP showed a singlet and triplet energy for efficient energy transfer to thermally activated delayed fluorescent dopant, (4s,6s)-2,4,5,6-tetra(9H-carbazol-9-yl) isophthalonitrile (4CzIPN), and bipolar charge transport properties for balanced hole and electron density. A high quantum efficiency of 21.2% was achieved in the fluorescent device using the 3TPAPFP host doped with 4CzIPN dopant at a very low doping concentration of 1%.
AB - High efficiency green thermally activated delayed fluorescence device with a quantum efficiency above 20% was developed using a bipolar host material, 3-(furo[2,3-b:5,4-b′]dipyridin-3-yl)-N,N-diphenylaniline (3TPAPFP), derived from furodipyridine core structure. The furodipyridine based 3TPAPFP showed a singlet and triplet energy for efficient energy transfer to thermally activated delayed fluorescent dopant, (4s,6s)-2,4,5,6-tetra(9H-carbazol-9-yl) isophthalonitrile (4CzIPN), and bipolar charge transport properties for balanced hole and electron density. A high quantum efficiency of 21.2% was achieved in the fluorescent device using the 3TPAPFP host doped with 4CzIPN dopant at a very low doping concentration of 1%.
UR - https://www.scopus.com/pages/publications/84894156839
U2 - 10.1021/cm403358h
DO - 10.1021/cm403358h
M3 - Article
AN - SCOPUS:84894156839
SN - 0897-4756
VL - 26
SP - 1413
EP - 1419
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 3
ER -