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Showing 1 to 2 of 2 for “"hot phonons"”.
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AlGaN/GaN Dual Channel HFETs and Realization of GaN Devices on different substrates
… key problems have been identified and solved. Hot phonon scattering is the bottleneck which limits the enhancement of electron velocity in the GaN 2DEG channel. It is found that the plasmon-phonon coupling is the mechanism for converting of hot phonons into high group velocity acoustic phonons. …
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Low Dislocation Density Gallium Nitride Templates and Their Device Applications
… the lateral growth area, but requires ex situ photolithography steps. Hence, an in situ method using a SiNx interlayer (nano-scale ELOG) has emerged as a promising technique. The GaN templates prepared by this method exhibit a very low dislocation density (low-10-7 cm-2) and excellent optical …