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Control and Detection of Organosilane Polarization on Nanowire Field-Effect Transistors.

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Title: Control and Detection of Organosilane Polarization on Nanowire Field-Effect Transistors.
Authors: M. C. Lin1, C. J. Chu1, L. C. Tsai1, H. Y. Lin1, C. S. Wu1, Y. P. Wu1, Y. N. Wu1, D. B. Shieh1, Y. W. Su1, C. D. Chen1
Source: Nano Letters. Dec2007, Vol. 7 Issue 12, p3656-3661. 6p.
Subjects: Nonmetals, Nucleic acid hybridization, Electric fields, Nucleic acids
Abstract: We demonstrated control and detection of UV-induced 3-aminopropyltriethoxysilane (APTES) polarization using silicon nanowire field-effect transistors made by top-down lithograph technology. The electric dipole moment in APTES films induced by UV-illumination was shown to produce negative effective charges. When individual dipoles were aligned with an externally applied electric field, the collective polarization can prevail over the UV-induced charges in the wires and give rise to an abnormal resistance enhancement in n-type wires. Real-time detection of hybridization of 15-mer poly-T/poly-A DNA molecules was performed, and the amount of hybridization-induced charges in the silicon wire was estimated. Based on these results, detection sensitivity of the wire sensors was discussed. [ABSTRACT FROM AUTHOR]
Copyright of Nano Letters is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 28016946
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PubTypeId: academicJournal
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  Data: Control and Detection of Organosilane Polarization on Nanowire Field-Effect Transistors.
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  Data: <searchLink fieldCode="AR" term="%22M%2E+C%2E+Lin%22">M. C. Lin</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22C%2E+J%2E+Chu%22">C. J. Chu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22L%2E+C%2E+Tsai%22">L. C. Tsai</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22H%2E+Y%2E+Lin%22">H. Y. Lin</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22C%2E+S%2E+Wu%22">C. S. Wu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Y%2E+P%2E+Wu%22">Y. P. Wu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Y%2E+N%2E+Wu%22">Y. N. Wu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22D%2E+B%2E+Shieh%22">D. B. Shieh</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Y%2E+W%2E+Su%22">Y. W. Su</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22C%2E+D%2E+Chen%22">C. D. Chen</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Nano+Letters%22">Nano Letters</searchLink>. Dec2007, Vol. 7 Issue 12, p3656-3661. 6p.
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  Data: We demonstrated control and detection of UV-induced 3-aminopropyltriethoxysilane (APTES) polarization using silicon nanowire field-effect transistors made by top-down lithograph technology. The electric dipole moment in APTES films induced by UV-illumination was shown to produce negative effective charges. When individual dipoles were aligned with an externally applied electric field, the collective polarization can prevail over the UV-induced charges in the wires and give rise to an abnormal resistance enhancement in n-type wires. Real-time detection of hybridization of 15-mer poly-T/poly-A DNA molecules was performed, and the amount of hybridization-induced charges in the silicon wire was estimated. Based on these results, detection sensitivity of the wire sensors was discussed. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Nano Letters is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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              Text: Dec2007
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