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Assume for some applications it is necessary to grow InGaAs of high quality on InP substrate. What is the composition of this alloy? (Use Vegard's

Assume for some applications it is necessary to grow InGaAs of high quality on InP substrate. What is the composition of this alloy? (Use Vegard's Law). What is its lattice constant? What is its bandgap and the wavelength of light that will be emitted by this alloy?

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