Functionalised AlGaN/GaN Heterostructures for Electronic Saccharide Sensing

Abstract

A novel field-effect sensor device based on functionalised AlGaN/GaN heterostructure was developed for sensing of various saccharides in solutions. Device was functionalized with a boronic acid chemical receptor, a thiol group and alkane chain linker. Electrical measurements on fabricated devices were performed to demonstrate their response to buffered saccharide solutions (fructose, galactose and glucose) of varying concentrations. The obtained results provide basis for the development AlGaN/GaN-based electronic sensor devices incorporating boron receptor chemistry.