Investigation of Size Dependence on Sensitivity for Nanowire FET Biosensors
作者： Jae-Hyuk Ahn , Sung-Jin Choi , Jin-Woo Han , Tae Jung Park , Sang Yup Lee
DOI: 10.1109/TNANO.2011.2157519
关键词:
摘要: Label-free electrical detection of biomolecules is demonstrated with a double-gate (DG) nanowire (NW) field-effect transistor (FET). Experimental results confirm that sensitivity favorably improved by the increment NW size in DG-NWFET, whereas it enhanced decrement conventional single-gate (SG) NWFET. Sensitivity improvement augmentation DG-FET paves way to overcome technical challenges we face achieving ultimate miniaturization SG-FET. This result comprehensively understood simple capacitive modeling. The proposed model explains observed experimental data and provides design guideline for highly sensitive biosensors.
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