TY - JOUR
T1 - Functionalization of phosphorescent emitters and their host materials by main-group elements for phosphorescent organic light-emitting devices
AU - Yang, Xiaolong
AU - Zhou, Guijiang
AU - Wong, Wai Yeung
N1 - This work was financially supported by Tengfei Project from Xi’an Jiaotong University, the Fundamental Research Funds for the Central Universities (cxtd2015003), the Program for New Century Excellent Talents in University, the Ministry of Education of China (NECT-09-0651), the Key Creative Scientific Research Team
in Shaanxi Province (2013KCT-05), the China Postdoctoral Science Foundation (Grant no. 20130201110034), and the National Natural Science Foundation of China (no. 20902072 and 51373145). The financial support from State Key Laboratory for Mechanical Behavior of Materials is also acknowledged. W.-Y.W. acknowledges the financial support from the National Basic Research Program of China (973 Program, grant no. 2013CB834702), the Areas of Excellence Scheme, University Grants Committee of HKSAR, China
(no. AoE/P-03/08), the Science, Technology and Innovation Committee of Shenzhen Municipality (JCYJ20140419130507116), Hong Kong Research Grants Council (no. HKBU 203313) and Hong Kong Baptist University (no. FRG1/14-15/084).
PY - 2015/12/7
Y1 - 2015/12/7
N2 - Phosphorescent organic light-emitting devices (OLEDs) have attracted increased attention from both academic and industrial communities due to their potential practical application in high-resolution full-color displays and energy-saving solid-state lightings. The performance of phosphorescent OLEDs is mainly limited by the phosphorescent transition metal complexes (such as iridium(iii), platinum(ii), gold(iii), ruthenium(ii), copper(i) and osmium(ii) complexes, etc.) which can play a crucial role in furnishing efficient energy transfer, balanced charge injection/transporting character and high quantum efficiency in the devices. It has been shown that functionalized main-group element (such as boron, silicon, nitrogen, phosphorus, oxygen, sulfur and fluorine, etc.) moieties can be incorporated into phosphorescent emitters and their host materials to tune their triplet energies, frontier molecular orbital energies, charge injection/transporting behavior, photophysical properties and thermal stability and hence bring about highly efficient phosphorescent OLEDs. So, in this review, the recent advances in the phosphorescent emitters and their host materials functionalized with various main-group moieties will be introduced from the point of view of their structure-property relationship. The main emphasis lies on the important role played by the main-group element groups in addressing the key issues of both phosphorescent emitters and their host materials to fulfill high-performance phosphorescent OLEDs.
AB - Phosphorescent organic light-emitting devices (OLEDs) have attracted increased attention from both academic and industrial communities due to their potential practical application in high-resolution full-color displays and energy-saving solid-state lightings. The performance of phosphorescent OLEDs is mainly limited by the phosphorescent transition metal complexes (such as iridium(iii), platinum(ii), gold(iii), ruthenium(ii), copper(i) and osmium(ii) complexes, etc.) which can play a crucial role in furnishing efficient energy transfer, balanced charge injection/transporting character and high quantum efficiency in the devices. It has been shown that functionalized main-group element (such as boron, silicon, nitrogen, phosphorus, oxygen, sulfur and fluorine, etc.) moieties can be incorporated into phosphorescent emitters and their host materials to tune their triplet energies, frontier molecular orbital energies, charge injection/transporting behavior, photophysical properties and thermal stability and hence bring about highly efficient phosphorescent OLEDs. So, in this review, the recent advances in the phosphorescent emitters and their host materials functionalized with various main-group moieties will be introduced from the point of view of their structure-property relationship. The main emphasis lies on the important role played by the main-group element groups in addressing the key issues of both phosphorescent emitters and their host materials to fulfill high-performance phosphorescent OLEDs.
UR - http://www.scopus.com/inward/record.url?scp=84947460872&partnerID=8YFLogxK
U2 - 10.1039/c5cs00424a
DO - 10.1039/c5cs00424a
M3 - Review article
AN - SCOPUS:84947460872
SN - 0306-0012
VL - 44
SP - 8484
EP - 8575
JO - Chemical Society Reviews
JF - Chemical Society Reviews
IS - 23
ER -