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Term (Index) Definition
AlGaAs  GaAs with Al added in adequate amount to modify width of the energy gap; by varying Al content in GaAlAs continued variation of the energy gap of the material is accomplished.
bandgap engineering  processes in which energy gap of semiconductor is altered in the desired way by changing chemical composition of semiconductor; e.g. by adding Al bandgap of GaAs can be altered; used in superlattice fabrication.
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