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Diffusion of Selenium-75 in Lead Chalcogenides
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Personen und Körperschaften: | , |
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Titel: |
Diffusion of Selenium-75 in Lead Chalcogenides |
In: | Journal of Applied Physics, 41, 1970, 7, S. 2818-2823 |
veröffentlicht: |
AIP Publishing
|
Umfang: | 2818-2823 |
ISSN: |
1089-7550 0021-8979 |
DOI: | 10.1063/1.1659321 |
Zusammenfassung: | <jats:p>The diffusion of Se-75 has been studied in crystals of PbS, PbSe, and PbTe annealed under argon at 700°C. The relative diffusivities were D(PbS)≈D(PbSe)⪝D(PbTe). Adding bismuth to PbSe yields a higher diffusivity than in undoped crystals of PbSe while additions of silver do not change the diffusivity. At 700°C the diffusivity of selenium in PbSe was studied as a function of selenium partial pressure. For 10−4 ≤ pSe2 ≤ 80 Torr, D ∝ pSe21/4 while for pSe2 &gt; 80 Torr, D ∝ pSe21/2. For pSe2 &lt; 10−4 Torr, the diffusivity was not a function of selenium pressure.</jats:p> |
Format: | E-Article |
Quelle: | AIP Publishing (CrossRef) |
Sprache: | Englisch |