期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 16, 期 5, 页码 4901-4905出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2016.12247
关键词
SiNW FET; Capacitance; Debye Length; Phosphate Buffered Saline (PBS); Dry Environment; Wet Environment; V-T Shift; Sensitivity; Biosensing
类别
资金
- National Research Foundation of Korea through Ministry of Science, ICT and Future Planning [2013R1A1A2065339]
- BK+
- Educational Research Team for Creative Engineers on Material Device-Circuit Co-Design Grant [22A20130000042]
- National Research Foundation of Korea [2013R1A1A2065339] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Our study investigates differences in sensitivity of dry and wet environment in the field of biosensing experiment in detail and depth. The sensitivity of biosensing varies by means of surrounding conditions of silicon nanowire field effect transistor (SiNW FET). By examining charged polymer reaction in the silicon nanowire transistor (SiNW), we have discovered that the threshold voltage (V-T) shift and change of subthreshold slope (SS) in wet environment are smaller than that of the air. Furthermore, we analyzed the sensitivity through modifying electrolyte concentration in the wet condition, and confirmed that V-T shift increases in low concentration condition of phosphate buffered saline (PBS) due to the Debye length. We believe that the results we have found in this study would be the cornerstone in contributing to advanced biosensing experiment in the future.
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