Hall mobility of excess electrons in 2,2-dimethylbutane, 2,2,4-trimethylpentane, and 2,2,4,4,-tetramethylpentane

Journal Article · Sun Jan 15 04:00:00 EST 1989 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.456167· OSTI ID:6596454

Itoh, K; Munoz, R C; Holroyd, R A

The Hall mobility (..mu../sub H/) of excess electrons was measured in liquid 2,2-dimethylbutane (22DMB), 2,2,4-trimethylpentane (224TMP), and 2,2,4,4-tetramethylpentane (2244TMP) at temperatures from 20 to 160 /sup 0/C. Drift mobilities ..mu../sub D/ were also measured over this temperature range. At 20 /sup 0/C the observed values of ..mu../sub H/ for 22DMB, 224TMP, and 2244TMP are 12, 22, and 32 cm/sup 2//V s, respectively. In all three liquids ..mu../sub H/ increases with temperature. The comparison of ..mu../sub H/ and ..mu../sub D/ indicates that electron traps are absent in 22DMB and 2244TMP. In contrast, in 224TMP ..mu../sub H/ is about 3.5 times ..mu../sub D/ at 18 /sup 0/C. Thus, in this liquid, traps are present and the concentration of traps is about one per thousand solvent molecules. The Hall mobility results are in reasonable accord with the expectations of the deformation potential model and support the concept of scattering of electrons in the conduction band due to density fluctuations.

• Research Organization: Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973
• OSTI ID: 6596454
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 90:2; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
DECOMPOSITION
ELECTRON MOBILITY
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
FLUIDS
HIGH TEMPERATURE
HYDROCARBONS
LEPTONS
LIQUIDS
MEDIUM TEMPERATURE
MOBILITY
ORGANIC COMPOUNDS
PARTICLE MOBILITY
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIOLYSIS
TRAPPED ELECTRONS