Electron Diffraction Studies on Crystal Structure of Selenium Film Deposited by Evaporation
1955 Volume 24 Issue 12 Pages 509-513
Details
1955 Volume 24 Issue 12 Pages 509-513
Crystal structure of selenium film deposited on well polished Ni surface in vacuum under the following conditions are investigated.
1) The degree of vacuum: 10-4mmHg.
2) The base temperature: a room temperature-173°C.
3) The thickness of film: 0.1μ_??_10μ.
4) The speed of evaporation (the quantity of selenium vapor evaporated from crucible):
1_??_6mg/min, 0.1g/min and 0.3g/min.
The results are shown in Tables 1 and 2. The structure of the film depends on the thickness, the temperature of the base and the speed of the evaporation. Structure of the first layer is either fibrous or of random orientation depending on the condition. Subsequent lavers are spiral-fibrous and ring-fibrous.
