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- Title
单, 双核含双硫配体金属有机铂磷光材料合成及其 OLED 应用.
- Authors
陈栎岩; 赵梓茗; 陶金琪; 张玉贞; 程 刚; 沈云军
- Abstract
The binuclear complex of Pt2 (Stpip) 2L and its corresponding mononuclear complex Pt (Stpip) LH are synthesized in one step by heating the mixture of chloro-bridged Pt (Ⅱ) dimer and StpipH ligand in acetone in the presence of potassium carbonate under reflux condition. The complexes are separated and characterized by ¹H and 31P NMR spectroscpy, high resolution mass spectrometry (HRMS) and X-ray single crystal diffraction. The luminescent properties of the complexes are studied by UV-Vis absorption spectrometer and fluorescent emission spectrometer. Among them, a binuclear complex exhibits strong phosphorescence at 593 and 560 nm in neat solid state and 2% PMMA film, respectively, and the quantum yield in PMMA film reaches 22. 2%. A mononuclear complex exhibits phosphorescence at 524 and 526 nm in neat solid state and 2% (mass percent) PMMA film, respectively, and the quantum yield in PMMA films reaches 38. 7%. The phosphorescence lifetime for both of complexes in two different states are between 0. 99~2. 80 μs. Organic light-emitting diodes (OLEDs) are fabricated by using the complex Pt2 (Stpip) 2L as the light-emitting layer. The results show that the maximum current efficiency of the OLEDs is 25. 50 cd/A, the maximum power efficiency is 15. 41 lm/W, the maximum external quantum efficiency is 8. 19%, and the CIE color coordinates are (0. 48, 0. 50)
- Subjects
LIGHT emitting diodes; QUANTUM efficiency; POTASSIUM carbonate; ORGANIC light emitting diodes; MASS spectrometry; PHOSPHORESCENCE
- Publication
Chinese Journal of Applied Chemistry, 2023, Vol 40, Issue 2, p236
- ISSN
1000-0518
- Publication type
Article
- DOI
10.19894/j.issn.1000-0518.220230