https://scholars.lib.ntu.edu.tw/handle/123456789/413758
Title: | NO gas sensor of PEDOT: PSS nanowires by using direct patterning DPN | Authors: | Lu H.-H. Lin C.-Y. Fang Y.-Y. Hsiao T.-C. Ho K.-C. Yang D. Lin C.-W. |
Issue Date: | 2008 | Start page/Pages: | 3208-3211 | Source: | 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08 | Abstract: | Nitric oxide (NO) detection is a critical issue for environmental safety and medical diagnosis due reasons with regard to the toxic properties for human body and metabolic index for respiratory disease, respectively. Development of gas sensor with high sensitivity is very important because the concentration of NO gas in the environment and respiratory tract is extremely low, therefore not readily detectable. The material with nanostructure can improve the sensitivity of sensor owning to surface effect and size effect. Herein, we developed a new type of gaseous nanosensor assembled by 34 nanowires of conducting polymer, PEDOT: PSS. The nanowires were fabricated by dip pen nanolithography (DPN) with the length of 55 um and diameter of 300 nm between golden wires. The NO gas measurement is based on chemiresistor based methods. The result of dynamic measurement of NO gas at 100 ppm shows repeatability and stability; the recovery time is 10.4 minutes. Moreover, the lowest concentration of NO gas in static measurement is l0ppm at 80 C, which also shows the ability sensing at low temperature. ?2008 IEEE. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-61949203825&partnerID=40&md5=a46775018594af37950859ba97763def https://scholars.lib.ntu.edu.tw/handle/123456789/413758 |
ISBN: | 9.78142E+12 | SDG/Keyword: | Chemical sensors; Conducting polymers; Diagnosis; Electric wire; Gas detectors; Nanolithography; Nanowires; Nitric oxide; Organic conductors; Polymers; Chemiresistor; Concentration of; Critical issues; Dip-pen nanolithographies; Direct-patterning; Dynamic measurements; Environmental safeties; Gas measurements; Gas sensors; High sensitivities; Human bodies; Low temperatures; Medical diagnosis; Nano structures; PEDOT:PSS; Recovery time; Respiratory disease; Respiratory tracts; Size effects; Static measurements; Surface effects; Toxic properties; Gases; ink; nanomaterial; nanowire; nitric oxide; silicon; article; atomic force microscopy; chemistry; conformation; electrode; gas; genetic procedures; methodology; nanotechnology; phase transition; scanning electron microscopy; temperature; time; Biosensing Techniques; Electrodes; Gases; Ink; Microscopy, Atomic Force; Microscopy, Electron, Scanning; Molecular Conformation; Nanostructures; Nanotechnology; Nanowires; Nitric Oxide; Phase Transition; Silicon; Temperature; Time Factors |
Appears in Collections: | 醫學工程學研究所 |
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