The Metastability of the Lowest Excited Singlet Level of Naphthalene

1949 ◽  
Vol 17 (6) ◽  
pp. 516-520 ◽  
Author(s):  
M. Kasha ◽  
R. V. Nauman
Keyword(s):  
Excited Singlet ◽  
Singlet Level

Emission and Deactivation of the Excited States of 2,3-Pentanedione

1972 ◽  
Vol 50 (9) ◽  
pp. 1338-1344 ◽  
Author(s):  
A. W. Jackson ◽  
A. J. Yarwood
Keyword(s):  
Triplet State ◽  
Gas Phase ◽  
Excited States ◽  
Singlet State ◽  
Triplet States ◽  
Excited Singlet ◽  
Vibrationally Excited ◽  
Singlet Level ◽  
Singlet And Triplet States ◽  
Fluorescence And Phosphorescence

Vibrationally excited singlet and triplet states of 2,3-pentanedione are formed by photolysis at 365 nm. The processes removing these excited states in the gas phase are studied by measuring the fluorescence and phosphorescence yields. Fluorescence can occur from the vibrationally excited, as well as the vibrationally equilibrated, singlet state. The fluorescence and phosphorescence data are considered in terms of mechanisms which involve either weak or strong collisions. Although the data cannot distinguish between the alternatives, there are two significant conclusions. The fluorescence data require that emission occur from at least two levels in the singlet manifold. To explain the phosphorescence data, the highest emitting singlet level must not lead to a vibrationally equilibrated triplet state.

Lifetime of the 5s5p1P1 Level of Strontium

1973 ◽  
Vol 51 (10) ◽  
pp. 1088-1090 ◽  
Author(s):  
L. O. Dickie ◽  
F. M. Kelly ◽  
T. K. Koh ◽  
M. S. Mathur ◽  
F. C. Suk
Keyword(s):  
Oscillator Strength ◽  
Resonance Line ◽  
Excited Singlet ◽  
Singlet Level

The lifetime of the first excited singlet level, 5s5p1P1, of strontium has been measured using the Hanle resonance of the 5s21S0 – 5s5p1P1, 4607 Å, resonance line. The lifetime of the 5s5p1P1 level is 5.29 ± 0.10 ns and the oscillator strength of the 4607 Å line is 1.80 ± 0.03. These results are compared with previous measurements.

The Gold Porphyrin First Excited Singlet State¶

2002 ◽  
Vol 76 (1) ◽  
pp. 47 ◽  
Author(s):  
Joakim Andréasson ◽  
Gerdenis Kodis ◽  
Su Lin ◽  
Ana L. Moore ◽  
Thomas A. Moore ◽  
...  
Keyword(s):  
Singlet State ◽  
Excited Singlet State ◽  
Excited Singlet

Kinetic studies of excited singlet oxygen atom O( 1 D) reactions with ethanol

2021 ◽  
Author(s):  
Hongtao Zhong ◽  
Chao Yan ◽  
Chu C. Teng ◽  
Timothy Y. Chen ◽  
Gerard Wysocki ◽  
...  
Keyword(s):  
Oxygen Atom ◽  
Singlet Oxygen ◽  
Kinetic Studies ◽  
Excited Singlet

Unraveling the Important Role of High‐Lying Triplet–Lowest Excited Singlet Transitions in Achieving Highly Efficient Deep‐Blue AIE‐Based OLEDs

2021 ◽  
Vol 33 (11) ◽  
pp. 2006953
Author(s):  
Xiaomin Guo ◽  
Peisen Yuan ◽  
Jianzhong Fan ◽  
Xianfeng Qiao ◽  
Dezhi Yang ◽  
...  
Keyword(s):  
Excited Singlet ◽  
Highly Efficient ◽  
Deep Blue
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