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Home > FAQ > Epitaxy > Do you have the optical characterization data for this InGaN wafer? We want to know want wavelength it emits when excited optically. A PL spectrum would be perfect. Also, is the InGaN grown on any buffer layer? What is the uniformity of the Indium compos

 Q:Do you have the optical characterization data for this  InGaN wafer? We want to know want wavelength it emits when excited optically. A PL spectrum would be perfect. Also, is the InGaN grown on any buffer layer? What is the uniformity of the Indium composition? Any In segregation or clusters? 

 

A:According to our XRD data, all the three In concentration(10%,20%,30%), there is a peak at ~34.5 degree.  A PL spectrum is preferred as attached.