Growth of Semiconductor Bulk Single Crystals

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Almost all electronic and optoelectronic devices need semiconducting materials of single crystalline structure. These materials are called single crystals, and are produced by a solidification process called crystal growth. Today, most bulk semiconductor single crystals are grown from the liquid phase by the growth processes known as the melt/solution techniques. These growth techniques have evolved from artisanship, relying very much on experience and intuition. Even today, this is the case in most techniques if not in all. The production of the same crystal twice is still a challenge. The applicant's research efforts have thus been focused on making these crystal growth techniques scientific so that the desired high quality crystals can be grown reproducibly. This is the main objective of the proposed research program.