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Title: | Gas collisions and pressure quenching of the photoluminescence of silicon nanopowder grown by plasma-enhanced chemical vapor deposition |
Author: | Roura Grabulosa, Pere Costa i Balanzat, Josep Morante i Lleonart, Joan Ramon Bertrán Serra, Enric |
Keywords: | Propietats òptiques Matèria condensada Optical properties Condensed matter |
Issue Date: | 1-Apr-1997 |
Publisher: | American Institute of Physics |
Abstract: | The quenching of the photoluminescence of Si nanopowder grown by plasma-enhanced chemical vapor deposition due to pressure was measured for various gases ( H2, O2, N2, He, Ne, Ar, and Kr) and at different temperatures. The characteristic pressure, P0, of the general dependence I(P) = I0¿exp(¿P/P0) is gas and temperature dependent. However, when the number of gas collisions is taken as the variable instead of pressure, then the quenching is the same within a gas family (mono- or diatomic) and it is temperature independent. So it is concluded that the effect depends on the number of gas collisions irrespective of the nature of the gas or its temperature. |
Note: | Reproducció del document publicat a: http://dx.doi.org/10.1063/1.364312 |
It is part of: | Journal of Applied Physics, 1997, vol. 81, núm. 7, p. 3290-3293 |
URI: | http://hdl.handle.net/2445/24823 |
Related resource: | http://dx.doi.org/10.1063/1.364312 |
ISSN: | 0021-8979 |
Appears in Collections: | Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) Articles publicats en revistes (Física Aplicada) |
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