Multiple trapping sites and symmetry splitting in cryogenic matrices: Infrared spectroscopy of HCN in Ar, Kr, and Xe

1985 ◽  
Vol 82 (3) ◽  
pp. 1255-1262 ◽  
Author(s):  
Alison D. Abbate ◽  
C. Bradley Moore
Keyword(s):  
Infrared Spectroscopy ◽  
Multiple Trapping ◽  
Trapping Sites

Multiple Trapping Sites for Hydrogen Atoms in Rare Gas Matrices

1960 ◽  
Vol 32 (4) ◽  
pp. 963-971 ◽  
Author(s):  
S. N. Foner ◽  
E. L. Cochran ◽  
V. A. Bowers ◽  
C. K. Jen
Keyword(s):  
Rare Gas ◽  
Hydrogen Atoms ◽  
Multiple Trapping ◽  
Trapping Sites

Hydrogen Dynamics and Tee Distribution of H Sites in Undoped a-Si:H and a-Ge:H

1991 ◽  
Vol 219 ◽  
Author(s):  
R. Shinar ◽  
X.-L. Wu ◽  
S. Mitra ◽  
J. Shinar
Keyword(s):  
Mass Spectrometry ◽  
Activation Energy ◽  
Long Range ◽  
Secondary Ion Mass Spectrometry ◽  
Ir Studies ◽  
Multiple Trapping ◽  
Ion Mass Spectrometry ◽  
Secondary Ion ◽  
Trapping Sites

ABSTRACTSecondary ion mass spectrometry and IR studies of long-range hydrogen motion in undoped a-Si:H and a-Ge:H of varying H content and microstructure are reviewed and discussed. In particular, their relation to the multiple trapping (MT) model, the role of microvoids, the significance of the Meyer-Neldel relation (MNR), and the nature of H sites is addressed. It is suggested that while the MT mechanism may be significant in a-Si:H of low H content Cfj, it is largely marginal in films where CH ≥ 10 at.% H and in a-Ge:H. Mono Si-H bonds on microvoid surfaces are apparently deep H trapping sites up to ∼ 400°C, but H is desorbed from such sites in a-Ge:H above 180°C. The MNR between the diffusional activation energy and prefactor is observed among the various a-Si:H and a-Ge:H, but its significance is questionable, and may be due to the MT mechanism only in low H content a-Si:H. The nature of the distribution of H sites is also discussed.

Multiple Trapping Sites for Hydrogen Atoms in Solid Argon

1959 ◽  
Vol 2 (2) ◽  
pp. 43-45 ◽  
Author(s):  
E. L. Cochran ◽  
V. A. Bowers ◽  
S. N. Foner ◽  
C. K. Jen
Keyword(s):  
Hydrogen Atoms ◽  
Multiple Trapping ◽  
Solid Argon ◽  
Trapping Sites

Multiple trapping sites for potassium atoms in argon matrices

1974 ◽  
Vol 48 (2) ◽  
pp. 143-144 ◽  
Author(s):  
H.J. Coufal ◽  
M. Burger ◽  
U. Nagel ◽  
E. Lüscher ◽  
K. Böning ◽  
...  
Keyword(s):  
Multiple Trapping ◽  
Argon Matrices ◽  
Trapping Sites

ESR of nitrogen atoms in multiple trapping sites—Nitrogen matrix

1978 ◽  
Vol 68 (5) ◽  
pp. 2252-2256 ◽  
Author(s):  
D. D. Delannoy ◽  
B. Tribollet ◽  
F. Valadier ◽  
A. Erbeia
Keyword(s):  
Multiple Trapping ◽  
Trapping Sites

INFRARED ABSORPTION OF FORMALDEHYDE AT LOW TEMPERATURES: EVIDENCE FOR MULTIPLE TRAPPING SITES IN AN ARGON MATRIX

1962 ◽  
Vol 40 (1) ◽  
pp. 85-91 ◽  
Author(s):  
K. B. Harvey ◽  
J. F. Ogilvie
Keyword(s):  
Fine Structure ◽  
Infrared Absorption ◽  
Low Temperatures ◽  
Point Of View ◽  
Monomeric Form ◽  
Argon Matrix ◽  
Inert Matrix ◽  
Multiple Trapping ◽  
The Matrix ◽  
Trapping Sites

The infrared absorption of formaldehyde in both the polycrystalline and the monomeric form has been measured at 4 °K. In the latter case the molecules were suspended in an inert matrix of Ar or N2. The fine structure of the matrix spectra is discussed from the point of view of rotation of the monomers but this interpretation is ruled out in favor of one based on multiple trapping sites in the matrix.

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