Abstract
EXAFS measurements have been made on amorphous germanium, a-Ge, and amorphous germanium with 4.9 and 6 atomic % hydrogen concentration levels as determined by infrared absorption. Assuming that the hydrogen is binding to the internal surfaces of voids in the germanium and comparing the change in the coordination number with the known change in density it is estimated that these voids are ∼30 A ̊ in diameter.
| Original language | English |
|---|---|
| Pages (from-to) | 105-108 |
| Number of pages | 4 |
| Journal | Journal of Non-Crystalline Solids |
| Volume | 66 |
| Issue number | 1-2 |
| DOIs | |
| State | Published - Jul 1984 |
| Externally published | Yes |
Bibliographical note
Funding Information:In this work we measured the EXAFS of unhydrogenated a-Ge, crystalline Ge, and hydrogenated a-Ge. Comparisons were made to determine the structural changes in a-Ge:H relative to a-Ge and crystalline Ge. The EXAFS signal of a-Ge:H with 4.9 atomic % H as determined by infrared absorption is shown in Research of E.A.S. and Y.A. was supported by N.S.F. grant DMR 80-22221, that of C.E.B. by NASA grant NAGW-199, and that of B.R. by SERI subcontract XW-I-9358-1 of prime contract EG-77-C-01-4042 with the U.S. Department of Energy.