Dependence of the quantum yield of intercombinational conversion into the triplet state of rhodamine 6G on the pH of the medium

1976 ◽  
Vol 24 (1) ◽  
pp. 17-19 ◽  
Author(s):  
V. E. Korobov ◽  
A. K. Chibisov
Keyword(s):  
Quantum Yield ◽  
Triplet State ◽  
Rhodamine 6G

Optical saturation and quenching effects in the triplet state of Rhodamine 6G at 77.deg.K

1974 ◽  
Vol 78 (20) ◽  
pp. 2006-2009 ◽  
Author(s):  
Mikio Yamashita ◽  
Hiroshi Kashiwagi
Keyword(s):  
Triplet State ◽  
Rhodamine 6G

Photolysis of ketene. I

1968 ◽  
Vol 46 (14) ◽  
pp. 2353-2360 ◽  
Author(s):  
A. N. Strachan ◽  
D. E. Thornton
Keyword(s):  
Carbon Monoxide ◽  
Quantum Yield ◽  
Triplet State ◽  
Singlet State ◽  
Inert Gases ◽  
Inert Gas ◽  
Excited Singlet State ◽  
Intersystem Crossing ◽  
Excited Singlet ◽  
Increasing Temperature

Ketene has been photolyzed at 3660 and 3130 Å both alone and in the presence of the inert gases C4F8 and SF6. The quantum yield of carbon monoxide has been determined at both wavelengths as a function of pressure and temperature. At 3660 Å the quantum yield decreases with increasing pressure but increases with increasing temperature. At 3130 Å the quantum yield with ketene alone remains 2.0 at both 37 and 100 °C at pressures up to 250 mm. At higher pressures of ketene or with added inert gas the quantum yield decreases with increasing pressure. The results are interpreted in terms of a mechanism in which intersystem crossing from the excited singlet state to the triplet state occurs at both wavelengths, and collisional deactivation of the excited singlet state by ketene is single stage at 3660 Å but multistage at 3130 Å.

Identification of a receiver triplet state in the ultrafast intersystem crossing of carbonylpyrenes

2020 ◽  
Vol 22 (11) ◽  
pp. 6145-6153
Author(s):  
Lekshmi R. S. ◽  
Gayathri B. Kurup ◽  
Sivaranjana Reddy Vennapusa
Keyword(s):  
Quantum Yield ◽  
Triplet State ◽  
Intersystem Crossing

The intersystem crossing receiver triplet state lifetime dictates the efficiency of the triplet quantum yield in carbonylpyrenes.

Triplet‐state ESR of rhodamine 6G during laser irradiation

1973 ◽  
Vol 59 (4) ◽  
pp. 2156-2157 ◽  
Author(s):  
Mikio Yamashita ◽  
Hiroshi Kashiwagi
Keyword(s):  
Triplet State ◽  
Laser Irradiation ◽  
Rhodamine 6G

Pulsed photoacoustic determination of the quantum yield of triplet state formation

1985 ◽  
Vol 30 (2) ◽  
pp. 141-151 ◽  
Author(s):  
Stanisa̵w J. Komorowski ◽  
Zbigniew R. Grabowski ◽  
Wojciech Zielenkiewicz
Keyword(s):  
Quantum Yield ◽  
Triplet State ◽  
State Formation

Formation of Intensive Photoluminescence in Porous Silicon

1995 ◽  
Vol 405 ◽  
Author(s):  
V. A. Makara ◽  
M. S. Boltovets ◽  
O. V. Vakulenko ◽  
O. I. Datsenko ◽  
O. V. Rudenko
Keyword(s):  
Porous Silicon ◽  
Quantum Yield ◽  
Rhodamine 6G ◽  
Mechanical Stresses ◽  
Pl Spectra ◽  
Pl Intensity

AbstractPhotoluminescence (PL) spectra of porous silicon (PS) samples are studied. Effect of mechanical stresses in substrate on PL intensity is shown. The quantum yield (QY) of PS luminescence is estimated by comparing PL spectra of PS and rhodamine 6G.

Spectra and quantum yield of phosphorescence of rhodamine 6G solutions at 77�K

1974 ◽  
Vol 20 (5) ◽  
pp. 604-607 ◽  
Author(s):  
V. A. Kuznetsov ◽  
N. I. Kunavin ◽  
V. N. Shamraev
Keyword(s):  
Quantum Yield ◽  
Rhodamine 6G
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