Predicting Phosphorescence Quantum Yield for Pt(II)-Based OLED Emitters from Correlation Function Approach

2019 ◽  
Vol 123 (17) ◽  
pp. 11140-11150 ◽  
Author(s):  
Inkoo Kim ◽  
Won-Joon Son ◽  
Youn-Suk Choi ◽  
Alexey Osipov ◽  
Dongseon Lee ◽  
...  
Keyword(s):  
Correlation Function ◽  
Quantum Yield ◽  
Function Approach ◽  
Phosphorescence Quantum Yield

Correlation function approach for diffusion in confined geometries

2020 ◽  
Vol 102 (2) ◽  
Author(s):  
Bruce J. Palmer ◽  
Jaehun Chun ◽  
Jeffrey F. Morris ◽  
Christopher J. Mundy ◽  
Gregory K. Schenter
Keyword(s):  
Correlation Function ◽  
Function Approach ◽  
Confined Geometries

Comparison of Fluorescence-to-Phosphorescence Quantum Yield Ratios in Solid-Matrix Luminescence as a Function of Temperature

1993 ◽  
Vol 47 (3) ◽  
pp. 283-286 ◽  
Author(s):  
R. J. Hurtubise ◽  
S. M. Ramasamy
Keyword(s):  
Quantum Yield ◽  
Singlet State ◽  
Yield Ratio ◽  
Solid Matrix ◽  
Quantum Yields ◽  
Phosphorescence Lifetime ◽  
Fundamental Parameters ◽  
Fluorescence Quantum Yields ◽  
Photophysical Parameters ◽  
Phosphorescence Quantum Yield

An equation that relates the ratio of fluorescence to phosphorescence quantum yields as function of temperature to basic photophysical parameters is considered. The quantum yields were obtained from three compounds on three different solid matrices. Fluorescence quantum yields did not change much with temperature, while phosphorescence quantum yields changed more substantially with temperature. For some of the systems considered, it was possible to show that, as the temperature was lowered, the quantum yield ratio was only a function of the phosphorescence lifetime of the phosphor. However, with other systems, the quantum yield ratio was dependent on both the rate constant of intersystem crossing from the singlet state to the triplet state and the phosphorescence lifetime. The equation discussed is important in defining the fundamental parameters that cause the luminescence quantum yield ratio to change as temperature is lowered.

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