Alternatively driven dual nanowire arrays by ZnO and CuO for selective sensing of gases

Autor: Jong-Lam Lee, Bonhyeong Koo, Myung Hwa Kim, Won Jeong Park, Jeong Min Baik, Won Jun Choi
Rok vydání: 2013
Předmět:
Zdroj: Sensors and Actuators B: Chemical. 185:10-16
ISSN: 0925-4005
DOI: 10.1016/j.snb.2013.04.038
Popis: We introduce a facile synthesis and characterization of alternatively driven dual nanowire arrays with single crystalline nanostructures of ZnO and CuO as efficient gas sensing elements. Single-crystalline dual nanowires of ZnO and CuO with the average diameter of 30 nm were selectively and simultaneously grown on a single substrate via a chemical vapor deposition at 773–873 K, without the incorporation of foreign atoms. The responses of dual one-dimensional nanostructures toward the minute concentrations of hydrogen (H 2 ), carbon monoxide (CO), and nitric dioxide (NO 2 ) were compared at 473 K so that they clearly represented the ability to distinguish three gases unequivocally.
Databáze: OpenAIRE