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Enzyme assays using sensor arrays based on ion-selective carbon nanotube field-effect transistors. Biosens Bioelectron 2016; 84:7-14. [DOI: 10.1016/j.bios.2016.04.077] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 04/21/2016] [Accepted: 04/22/2016] [Indexed: 11/26/2022]
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Back-gated spray-deposited carbon nanotube thin film transistors operated in electrolytic solutions: an assessment towards future biosensing applications. J Mater Chem B 2013; 1:3797-3802. [PMID: 32261132 DOI: 10.1039/c3tb20170h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report on back-gated carbon nanotube (CNT) thin-film transistors (CNTFETs) and their performance in electrolytic solutions to assess their suitability for future application as biosensors. Spray-deposited CNT networks were used as the sensitive active layer which offers the opportunity for integration on flexible sensing platforms at low-cost. We characterized the transistors' behavior in electrolytes by analyzing the response to different KCl solutions and buffers over a wide pH range. We observed a linear response of the drain current upon changing the pH in low molarity buffers and obtained an exponential dependence on the salt concentration of the electrolyte. These responses can be attributed to electrostatic gating effects that go along with shifts in the threshold voltage. Even though a lot of effort has been put into understanding the biosensing mechanism a detailed theory is still missing. Back-gated CNTFETs operated in electrolytic solutions can be a further tool to investigate and clarify the existing unsolved phenomena.
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Abstract
ABSTRACTWe present an experimental study of light emission in silicon devices, mainly MOSFETs, p-i-n diodes, and MIS structures. The special analysis shows important features below as well as above the gap, indicating the type of mechanism responsible for the light emission. Striking differences we found between planar and vertical-type structures.
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Improvement of the Extended One-Pot (EOP) Procedure To Form Poly(aryleneethynylene)s and Investigation of Their Electrical and Optical Properties. Macromolecules 2003. [DOI: 10.1021/ma0216829] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Tuning the optical properties of thiophene oligomers toward infrared emission: A theoretical study. J Chem Phys 2001. [DOI: 10.1063/1.1391442] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Photoluminescence Efficiency of Substituted Quaterthiophene Crystals. PHYSICAL REVIEW LETTERS 2001; 86:167-170. [PMID: 11136120 DOI: 10.1103/physrevlett.86.167] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/1999] [Indexed: 05/23/2023]
Abstract
The photoluminescence (PL) efficiency of substituted alpha-conjugated quaterthiophene crystals shows marked differences depending on crystal packing and molecular geometry. This effect is studied by evaluating the role of the intermolecular interactions and the effects of the single molecule conformation on the intersystem crossing (ISC) rate. The comparison of these calculations with absolute quantum efficiency measurements and with the experimental temperature dependence of the PL decay time, indicates that the differences in PL efficiency are not inherent to crystal packing effects but they are determined by the ISC rate.
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Monte Carlo simulation of intersubband relaxation in wide, uniformly doped GaAs/AlxGa1-xAs quantum wells. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:17794-17804. [PMID: 9985911 DOI: 10.1103/physrevb.54.17794] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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12
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Nonequilibrium Dynamics in a Quasi-Two-Dimensional Electron Plasma after Ultrafast Intersubband Excitation. PHYSICAL REVIEW LETTERS 1996; 77:3657-3660. [PMID: 10062275 DOI: 10.1103/physrevlett.77.3657] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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13
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Coupled free-carrier and exciton relaxation in optically excited semiconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:4660-4673. [PMID: 9986425 DOI: 10.1103/physrevb.54.4660] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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14
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Erratum: Femtosecond hole relaxation in n-type modulation-doped quantum wells. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:5445. [PMID: 9981736 DOI: 10.1103/physrevb.52.5445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Ultrafast relaxation of photoexcited carriers in semiconductor quantum wires: A Monte Carlo approach. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:5183-5201. [PMID: 9981704 DOI: 10.1103/physrevb.52.5183] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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16
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Microscopic calculation of the electron-optical-phonon interaction in ultrathin GaAs/AlxGa1-xAs alloy quantum-well systems. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:7046-7057. [PMID: 9977263 DOI: 10.1103/physrevb.51.7046] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Effect of half-space and interface phonons on the transport properties of AlxGa1-xAs/GaAs single heterostructures. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:8178-8190. [PMID: 10009584 DOI: 10.1103/physrevb.49.8178] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Femtosecond hole relaxation in n-type modulation-doped quantum wells. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:5708-5711. [PMID: 10009101 DOI: 10.1103/physrevb.48.5708] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Ultrafast thermalization of photoexcited carriers in polar semiconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 47:4226-4237. [PMID: 10006566 DOI: 10.1103/physrevb.47.4226] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Reduced carrier cooling and thermalization in semiconductor quantum wires. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 47:1632-1635. [PMID: 10006184 DOI: 10.1103/physrevb.47.1632] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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23
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Microscopic calculation of the electron-phonon interaction in quantum wells. PHYSICAL REVIEW. B, CONDENSED MATTER 1992; 45:6747-6756. [PMID: 10000437 DOI: 10.1103/physrevb.45.6747] [Citation(s) in RCA: 113] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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24
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Electron-phonon interaction in quasi-two-dimensional systems. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 44:3463-3466. [PMID: 9999969 DOI: 10.1103/physrevb.44.3463] [Citation(s) in RCA: 83] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Initial thermalization of photoexcited carriers in GaAs studied by femtosecond luminescence spectroscopy. PHYSICAL REVIEW LETTERS 1991; 66:1757-1760. [PMID: 10043299 DOI: 10.1103/physrevlett.66.1757] [Citation(s) in RCA: 64] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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26
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Correlation functions of hot electrons in semiconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 40:12382-12390. [PMID: 9991870 DOI: 10.1103/physrevb.40.12382] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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27
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Diffusion and fluctuations in a nonequilibrium electron gas with electron-electron collisions. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 40:12209-12214. [PMID: 9991852 DOI: 10.1103/physrevb.40.12209] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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28
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Monte Carlo studies of nonequilibrium phonon effects in polar semiconductors and quantum wells. I. Laser photoexcitation. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 39:7852-7865. [PMID: 9947468 DOI: 10.1103/physrevb.39.7852] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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29
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Monte Carlo studies of nonequilibrium phonon effects in polar semiconductors and quantum wells. II. Non-Ohmic transport in n-type gallium arsenide. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 39:7866-7875. [PMID: 9947469 DOI: 10.1103/physrevb.39.7866] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Influence of electron-hole scattering on subpicosecond carrier relaxation in AlxGa1-xAs/GaAs quantum wells. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 38:10135-10138. [PMID: 9945860 DOI: 10.1103/physrevb.38.10135] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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31
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Generalization of Nyquist-Einstein relationship to conditions far from equilibrium in nondegenerate semiconductors. PHYSICAL REVIEW LETTERS 1988; 60:736-739. [PMID: 10038633 DOI: 10.1103/physrevlett.60.736] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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32
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Effect of electron-electron scattering on nonequilibrium transport in quantum-well systems. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 37:2578-2588. [PMID: 9944808 DOI: 10.1103/physrevb.37.2578] [Citation(s) in RCA: 101] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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33
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Determination of intervalley scattering rates in GaAs by subpicosecond luminescence spectroscopy. PHYSICAL REVIEW LETTERS 1987; 59:2222-2225. [PMID: 10035456 DOI: 10.1103/physrevlett.59.2222] [Citation(s) in RCA: 53] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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34
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Quantum kinetic equation for electronic transport in nondegenerate semiconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1987; 36:6602-6608. [PMID: 9942374 DOI: 10.1103/physrevb.36.6602] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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35
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Nonequilibrium longitudinal-optical phonon effects in GaAs-AlGaAs quantum wells. PHYSICAL REVIEW LETTERS 1987; 59:716-719. [PMID: 10035852 DOI: 10.1103/physrevlett.59.716] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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36
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Dynamical screening of hot carriers in semiconductors from a coupled molecular-dynamics and ensemble Monte Carlo simulation. PHYSICAL REVIEW LETTERS 1986; 56:1295-1297. [PMID: 10032624 DOI: 10.1103/physrevlett.56.1295] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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37
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Effect of electron-electron scattering on Monte Carlo studies of transport in submicron semiconductors devices. ACTA ACUST UNITED AC 1983. [DOI: 10.1016/0378-4363(83)90497-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Interim report on a method of extracorporeal perfusion of preserved canine kidney. UROLOGICAL RESEARCH 1974; 2:133-6. [PMID: 4446203 DOI: 10.1007/bf00254730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Metodi Angiografici Nella Diagnostica Dei Tumori Vescicali. Urologia 1974. [DOI: 10.1177/039156037404100209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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