Solvent structure dependence of the optical excitation energy of solvated electrons

1973 ◽  
Vol 77 (1) ◽  
pp. 7-9 ◽  
Author(s):  
G. R. Freeman
Keyword(s):  
Excitation Energy ◽  
Optical Excitation ◽  
Solvent Structure ◽  
Solvated Electrons ◽  
Structure Dependence

Transfer of optical excitation energy from Dy3+ → Nd3+ in calibo glass

1978 ◽  
Vol 26 (2) ◽  
pp. 179-183 ◽  
Author(s):  
J.C. Joshi ◽  
B.C. Joshi ◽  
N.C. Pandey ◽  
Bipin C. Pandey ◽  
Janardan Joshi
Keyword(s):  
Excitation Energy ◽  
Optical Excitation

Direct observation of migration of optical excitation energy in YAG: Tb3+

1990 ◽  
Vol 47 (4) ◽  
pp. 169-175 ◽  
Author(s):  
K. Richter ◽  
R. Wannemacher ◽  
J. Heber ◽  
D. Mateika
Keyword(s):  
Excitation Energy ◽  
Direct Observation ◽  
Optical Excitation

Effect of optical excitation energy on the red luminescence of Eu3+ in GaN

2005 ◽  
Vol 86 (5) ◽  
pp. 051110 ◽  
Author(s):  
H. Y. Peng ◽  
C. W. Lee ◽  
H. O. Everitt ◽  
D. S. Lee ◽  
A. J. Steckl ◽  
...  
Keyword(s):  
Excitation Energy ◽  
Optical Excitation ◽  
Red Luminescence

Static hot carrier populations as a function of optical excitation energy detected through energy selective contacts by optically assisted IV

2013 ◽  
Vol 22 (10) ◽  
pp. 1070-1079 ◽  
Author(s):  
Dirk König ◽  
Daniel Hiller ◽  
Margit Zacharias ◽  
Stephan Michard ◽  
Christopher Flynn
Keyword(s):  
Excitation Energy ◽  
Optical Excitation ◽  
Hot Carrier

Coherent control of ultrafast nanoscale localization of optical excitation energy

2003 ◽  
Author(s):  
Mark I. Stockman ◽  
David J. Bergman ◽  
Takayoshi Kobayashi
Keyword(s):  
Excitation Energy ◽  
Coherent Control ◽  
Optical Excitation

Effects of solvent structure on electron reactivity and radiolysis yields: 2-propanol/water mixed solvents

1984 ◽  
Vol 62 (7) ◽  
pp. 1265-1270 ◽  
Author(s):  
Joanna Cygler ◽  
Gordon R. Freeman
Keyword(s):  
Pure Water ◽  
Mixed Solvents ◽  
Water Structure ◽  
Trap Depth ◽  
Solvent Structure ◽  
Solvated Electrons ◽  
Absorption Energy ◽  
Diffusion Controlled ◽  
Free Ion ◽  
Different Temperatures

Reaction of solvated electrons with nitrobenzene, N, is nearly diffusion controlled in both pure solvents; kN ~ 1010 dm3/mol s. The value of kN is approximately proportional to the inverse viscosity η−1 in the pure solvents, and in the mixed solvents at different temperatures. However, on going from zero to 74 mol% water at the same temperature kN is independent of the 40% increase of η. Electron diffusion in the mixed solvents is not a simple function of fluidity.Reaction with the inefficient scavengers tryptophane (kS ~ 109 dm3/mol s) and phenol (kS ~ 107–108 dm3/mol s) correlates inversely with the electron optical absorption energy. The latter is related to the trap depth in the solvent; electrons in deeper traps have less tendency to react with molecules of low electron affinity.Addition of 3 mol% 2-PrOH to water at 296 K increases the value of Gεmax by 16%, although the value in pure 2-PrOH is three-fold smaller than that in pure water. The increase is attributed to an increase in the free ion yield, caused by an increase in the product of the electron thermalization range and the microscopic dielectric constant of the fluid between the ion and electron, averaged over the time that they exist as a correlated pair. Addition of a small amount of alcohol to water increases the orderliness of the water structure.

Storage and transfer of optical excitation energy in GaInP epilayer: Photoluminescence signatures

2019 ◽  
Vol 35 (7) ◽  
pp. 1364-1367 ◽  
Author(s):  
Shijie Xu ◽  
Ying Huang ◽  
Zhicheng Su ◽  
Rongxin Wang ◽  
Jianrong Dong ◽  
...  
Keyword(s):  
Excitation Energy ◽  
Optical Excitation

Modulation of quantum well lasers by short optical excitation: energy and spatial dependent effects

1995 ◽  
Vol 7 (1) ◽  
pp. 23-25 ◽  
Author(s):  
N. Tessler ◽  
M. Margalit ◽  
R.B. Michael ◽  
M. Orenstein ◽  
G. Eisenstein
Keyword(s):  
Quantum Well ◽  
Excitation Energy ◽  
Optical Excitation ◽  
Quantum Well Lasers

Solvent Structure Effects and Diffusion Control in the Reaction Between Solvated Electrons and Solvated Protons in Alcohols and Water

1972 ◽  
Vol 50 (18) ◽  
pp. 3073-3075 ◽  
Author(s):  
K. N. Jha ◽  
G. L. Bolton ◽  
G. R. Freeman
Keyword(s):  
Reaction Rates ◽  
Diffusion Control ◽  
Solvent Structure ◽  
Solvated Electrons ◽  
Solvent Dependence ◽  
Diffusion Controlled ◽  
Water Effects ◽  
And Diffusion ◽  
Debye Equation

The rates of reactions 1 and 2 are diffusion controlled in alcohols[Formula: see text]In water reaction 1 is slower and reaction 2 (where RO− is HO−) is faster than one would estimate from the Debye equation for diffusion controlled reactions. The solvent dependence of the relative values of k1 and k2 is attributed to the solvent dependence of the structures of [Formula: see text] [Formula: see text] [Formula: see text] and H+ and RO− are strong solvent structure makers in alcohols and in water, whereas e− is a weak solvent structure maker in alcohols and a strong structure breaker in water. Effects of the solvent structure making and breaking properties of ions on their reaction rates have been proposed by Gurney and Frank.

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