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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Elibol, Oguz H. Bergstrom, Donald E. Alam, Muhammad A. Reddy, Bobby Jr. Dorvel, Brian Butler, Felice Bashir, Rashid Ahsan, Zahab S. Nair, Pradeep R. |
| Copyright Year | 2009 |
| Abstract | We demonstrate electrically addressable localized heating in fluid at the dielectric surface of silicon-on-insulator field-effect transistors via radio-frequency Joule heating of mobile ions in the Debye layer. Measurement of fluid temperatures in close vicinity to surfaces poses a challenge due to the localized nature of the temperature profile. To address this, we developed a localized thermometry technique based on the fluorescence decay rate of covalently attached fluorophores to extract the temperature within 2 nm of any oxide surface. We demonstrate precise spatial control of voltage dependent temperature profiles on the transistor surfaces. Our results introduce a new dimension to present sensing systems by enabling dual purpose silicon transistor-heaters that serve both as field effect sensors as well as temperature controllers that could perform localized bio-chemical reactions in Lab on Chip applications. |
| Starting Page | 2789 |
| Ending Page | 2795 |
| Page Count | 7 |
| File Format | HTM / HTML PDF |
| ISSN | 14730197 |
| Volume Number | 9 |
| Issue Number | 19 |
| Journal | Lab on a Chip |
| DOI | 10.1039/b906048k |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Silicon on insulator Temperature measurement Joule heating Fluorescence Transistor Dielectric Joule |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Nanoscience and Nanotechnology Biochemistry Bioengineering Biomedical Engineering |
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