Temperature dependence of 1∕f noise mechanisms in silicon nanowire biochemical field effect transistors.
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ABSTRACT: The 1∕f noise of silicon nanowire biochemical field effect transistors is fully characterized from weak to strong inversion in the temperature range 100-300 K. At 300 K, our devices follow the correlated Δn-Δμ model. As the temperature is lowered, the correlated mobility fluctuations become insignificant and the low frequency noise is best modeled by the Δn-model. For some devices, evidence of random telegraph signals is observed at low temperatures, indicating that fewer traps are active and that the 1∕f noise due to number fluctuations is further resolved to fewer fluctuators, resulting in a Lorentzian spectrum.
SUBMITTER: Rajan NK
PROVIDER: S-EPMC3017570 | biostudies-other | 2010 Dec
REPOSITORIES: biostudies-other
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