Synthesis, functionalization, and environmental stabilization of ZnO nanobridge transducers for gas and liquid-phase sensing
作者： A.D. Mason , C.-C. Huang , S. Kondo , M.T. Koesdjojo , Y.H. Tennico
DOI: 10.1016/J.SNB.2010.11.061
关键词: Nanowire 、 Chemical vapor deposition 、 Dissolution 、 Electrical measurements 、 Amine gas treating 、 Dark current 、 Nanotechnology 、 Surface modification 、 Materials science 、 Transducer
摘要: Abstract Three methods of functionalizing ZnO NW surfaces with biotin were demonstrated. Biotinylated NWs found to dissolve during exposure deionized (DI) water, so a chemical vapor deposition (CVD) process was developed for parylene-A, common moisture barrier an amine group which allows further functionalization. Parylene-A coated be resistant dissolution. Electrical measurements on parylene-A nanobridge devices showed normal operation higher dark current and attenuated response UV O 2 , indicating the ability modulate environmental sensitivity. This work demonstrates novel use coatings as encapsulation layer well potential starting platform general functionalization selective sensing.
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