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1/f1∕f noise in gold nanoparticle chemosensors
Kurdak, C.; Kim, J.; Kuo, A.; Lucido, J. J.; Farina, L. A.; Bai, X.; Rowe, M. P.; Matzger, A. J.
Kurdak, C.; Kim, J.; Kuo, A.; Lucido, J. J.; Farina, L. A.; Bai, X.; Rowe, M. P.; Matzger, A. J.
2005-02-14
Citation:Kurdak, C.; Kim, J.; Kuo, A.; Lucido, J. J.; Farina, L. A.; Bai, X.; Rowe, M. P.; Matzger, A. J. (2005). "1/f1∕f noise in gold nanoparticle chemosensors." Applied Physics Letters 86(7): 073506-073506-3. <http://hdl.handle.net/2027.42/87853>
Abstract: We present a systematic study of low-frequency noise in Au nanoparticle chemosensors. All the sensors we have studied exhibit 1/f1∕f-type noise at low frequencies. The magnitude of the 1/f1∕f noise was smaller in devices with a larger device area, indicating that the 1/f1∕f noise is caused by intrinsic processes. The noise amplitude was found to be strongly temperature dependent between 40–300 K40–300K, with a local peak at around 100 K100K, and weakly dependent below 40 K40K. The noise data could not be fit by a single activated process indicating that multiple noise processes must be present in our sensors.
