Volatile Organic Compounds Gas Sensing Properties of ZnO Nanorings
Abstract:Hexagonal ZnO ring-like nanostructured powder was successfully synthesized by a facile sono-chemical process and the following etching treatment at room temperature without any catalysts or templates. The results indicated that the nanorings had a diameter of about 180 nm and wall thickness of about 50 nm. Nanorings gas sensor was fabricated on a silicon-based substrate with electrodes and heater prepared by MEMS process. Gas sensing measurements toward VOC gases (benzene, toluene, ethanol and acetaldehyde) indicated that the ZnO nanorings sensor possess excellent sensitivity to these gases. The promising gas sensing properties of ZnO nanorings sensor are due to the high active area and easy diffusion provided by the particular ring-like structure.
Document Type: Research Article
Publication date: 2011-04-01
More about this publication?
- The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Terms & Conditions
- Ingenta Connect is not responsible for the content or availability of external websites