Page 237 - Chalcogenide Glasses for Infrared Optics
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AMI Infrar ed Crystalline Materials 213
Thermocouple
Cd, Te, CdTe
CdTe
H 2 H 2
Position 1
Furnace
Position 2
FIGURE 9.1 Conventional solution epitaxial growth process.
through the solution to the substrate. At the end, the slide is moved
back to position 1 to prevent the solution from sticking to the epitaxial
layer. As described, this is a batch process method, slow, limited by
diffusion, and not suited for growth of thick plates. To overcome the
disadvantages of the conventional method, the system shown in Fig. 9.2
Furnace 2-A Furnace 2-B
Pure
Furnace 1 crystal
solid
Rock
T 1
Single-crystal Liquid
substrate
T 2 T 2
FIGURE 9.2 Continuous solution epitaxial growth design.
