Studies on the Photographic Material with Silver Halide Thin Layer by Vacuum Deposition
1965 Volume 28 Issue 3 Pages 119-123
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1965 Volume 28 Issue 3 Pages 119-123
The photosensitive layer of silver halide was made by vacuum deposition, and the properties of it's crystal and photographic sensitivity were studied.
The temperature of the vapor source was measured by thermo-couple, and the pressure was kept constant (1.0×10-4 Torr) during evaporation of AgBr.
The information of the crystal form was obtained by direct observation with electron microscope and it's orientation was examined by X-ray diffraction.
With increasing mean-thickness of the layer, the particle rapidly became large in size and it's orientation changed from (111) to (200), and the sensitivity of the layer gradually increased to maximum and then decreased.
The higher temperature of the vapor source gave higher sensitivity to the resulting layer.
The relation between the properties of crystal and the sensitivity was discussed.
