Abstract
In this paper, CuO layered hexagonal disks based ammonium hydroxide chemical sensor has been fabricated which demonstrated good sensitivity and detection limit. The CuO layered hexagonal disks were synthesized in large quantity via facile hydrothermal process at low-temperature of 130 degrees C and characterized in detail in terms of their structural and optical properties [1]. The detailed structural and optical properties of as-synthesized CuO layered hexagonal disks confirmed the good crystallinity with monoclinic structure and good optical properties for synthesized products [1]. The fabricated ammonium hydroxide chemical sensor based on CuO layered hexagonal disks demonstrate a good sensitivity of 0.07166 mu A cm(-2) mM(-1), detection limit = 1.333 mu M, response time less than 10 s, linear dynamic range (LDR) from 5.0 mu M to 5.0 mM. This study reveals that simply synthesized CuO materials can be efficiently as an electron mediator to fabricate efficient chemical sensors.