Temperature dependence of the pyroelectric behaviour in GaN/AlGaN

So far the dependence of the spontaneous polarization coefficient for GaN and AlN on temperature has been measured to be minimal, which corresponds with expectation that the spontaneous polarization is reduced at the elevated temperatures of interest. There are also no reports on the piezoelectric polarization at higher temperature. This paper is initial study on the influence of temperature related pyroelectric behaviour in GaN/AlGaN. Summarize recent findings and consideration.