TY - JOUR
T1 - Smart Design on the Cyclometalated Ligands of Iridium(III) Complexes for Facile Tuning of Phosphorescence Color Spanning from Deep-Blue to Near-Infrared
AU - Chen, Zhao
AU - Wang, Liqi
AU - Ho, Cheuk Lam
AU - Chen, Shuming
AU - Suramitr, Songwut
AU - Plucksacholatarn, Aunyamanee
AU - ZHU, Nianyong
AU - Hannongbua, Supa
AU - WONG, Wai Yeung
N1 - Funding Information:
Z.C. and L.W. contributed equally to this work. C.-L.H. thanks the Hong Kong Research Grants Council (PolyU 123021/17P), National Natural Science Foundation of China (21504074), and the Hong Kong Polytechnic University (1-BE0Q) for their financial support. W.-Y.W. thanks the Hong Kong Research Grants Council (PolyU 153051/17P), Areas of Excellence Scheme of the University Grants Committee, HKSAR (AoE/P-03/08), the Hong Kong Polytechnic University (1-ZE1C) and Ms. Clarea Au (847S) for the financial support.
PY - 2018/12/3
Y1 - 2018/12/3
N2 - It has long been a challenge to achieve iridium(III) complexes with emission colors covering the whole visible and near-infrared wavelengths, by using similar cyclometalating ligands. Herein, a series of iridium(III) complexes that accomplish broadly tunable phosphorescence from 420 to 729 nm through the use of trifluoromethyl substituents and other conjugated units such as [1,2,5]thiadiazolo[3,4-c]pyridine in the cyclometalating ligands are reported. The peak external quantum efficiencies of 7.1%, 20.0%, 14.0%, 4.0%, and 16.0% are achieved for deep-blue, green, red, near-infrared, and white phosphorescent organic light-emitting diodes, respectively, by using these iridium(III) complexes.
AB - It has long been a challenge to achieve iridium(III) complexes with emission colors covering the whole visible and near-infrared wavelengths, by using similar cyclometalating ligands. Herein, a series of iridium(III) complexes that accomplish broadly tunable phosphorescence from 420 to 729 nm through the use of trifluoromethyl substituents and other conjugated units such as [1,2,5]thiadiazolo[3,4-c]pyridine in the cyclometalating ligands are reported. The peak external quantum efficiencies of 7.1%, 20.0%, 14.0%, 4.0%, and 16.0% are achieved for deep-blue, green, red, near-infrared, and white phosphorescent organic light-emitting diodes, respectively, by using these iridium(III) complexes.
KW - full-color emission
KW - iridium complexes
KW - near-infrared
KW - organic light-emitting diodes
KW - trifluoromethyl substituent
UR - https://www.scopus.com/pages/publications/85054527343
U2 - 10.1002/adom.201800824
DO - 10.1002/adom.201800824
M3 - Journal article
AN - SCOPUS:85054527343
SN - 2195-1071
VL - 6
JO - Advanced Optical Materials
JF - Advanced Optical Materials
IS - 23
M1 - 1800824
ER -