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 | Nanotech 2007 Vol. 1
Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 1
Chapter 5: Nanostructured Materials and Devices |
| | Sensor application of ZnO nanowires on microheater | | Authors: | J. Park, G.-T. Kim, S. Maeng, F. Udrea and W. Milne | | Affilation: | ETRI, KR | | Pages: | 418 - 421 | | Keywords: | ZnO nanowire, microheater, sensor | | Abstract: | We fabricated the ZnO nanowire network device using sol-gel synthesis method on the pre-patterned electrode and tested the electrical property for chemical sensing. The electrodes were prepared in various ways, for example, photolithographically defined interdigitated pattern and e-beam lithographically defined 4-point probe pattern to characterize the electrical property of ZnO nanowire device. Compared with single ZnO nanowire device based on the high resolution e-beam lithography technique, our method is cost-effective, time-saving, capable of mass-production and easily applicable to any other substrate, for example, our CMOS-compatible microheater which is an excellent chemical sensor platform. In addition to these merits of fabrication process, our data show much better characteristics : i) much higher current level and ii) almost ohmic IV curve, compared to earlier works because of improvement in the contact resistance between nanowires and electrodes from post-processing like thermal treatment and additional etching method. We are further developing our nanowire network device built on microheater in order to apply to small, fast-responding, very low power-consuming chemical sensor which is one of very promising ubiquitous and mobile IT fields. | | ISBN: | 1-4200-6182-8 |
| Pages: | 726 |
| Hardcopy: | $199.99 |
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