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Pulsed laser deposition of Mg thin films on Cu substrates for photocathode applications
- Source :
-
Applied Surface Science . Jul2005, Vol. 248 Issue 1-4, p397-401. 5p. - Publication Year :
- 2005
-
Abstract
- Abstract: In this study, pulsed laser ablation of pure Mg targets (99.99%) using an XeCl excimer laser (λ =308nm, τ =30ns) was used to grow Mg coatings on Cu substrates. A thin layer of Mg (100–200nm) was deposited in UHV of 5×10−6 Pa to ensure high purity. A second ultra-thin layer of MgO of 10–20nm was deposited in oxygen at 10−2 Pa pressure to protect the previous layer from atmospheric contamination. Measurements for determining the electron yield of the deposited samples under UV irradiation were performed on a diode structure in another UHV apparatus evacuated to 10−6 Pa. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 01694332
- Volume :
- 248
- Issue :
- 1-4
- Database :
- Academic Search Index
- Journal :
- Applied Surface Science
- Publication Type :
- Academic Journal
- Accession number :
- 17915337
- Full Text :
- https://doi.org/10.1016/j.apsusc.2005.03.065