期刊
CHEMICAL SOCIETY REVIEWS
卷 44, 期 23, 页码 8484-8575出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cs00424a
关键词
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资金
- Tengfei Project from Xi'an Jiaotong University
- 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]
- Key Creative Scientific Research Team in Shaanxi Province [2013KCT-05]
- China Postdoctoral Science Foundation [20130201110034]
- National Natural Science Foundation of China [20902072, 51373145]
- State Key Laboratory for Mechanical Behavior of Materials
- National Basic Research Program of China (973 Program) [2013CB834702]
- Areas of Excellence Scheme, University Grants Committee of HKSAR, China [AoE/P-03/08]
- Science, Technology and Innovation Committee of Shenzhen Municipality [JCYJ20140419130507116]
- Hong Kong Research Grants Council [HKBU 203313]
- Hong Kong Baptist University [FRG1/14-15/084]
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.
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