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Title: Photoelectrochemical molecular comb

Abstract

A method and apparatus for separating molecules. The apparatus includes a substrate having a surface. A film in contact with the surface defines a substrate/film interface. An electrode electrically connected to the film applies a voltage potential between the electrode and the substrate to form a depletion region in the substrate at the substrate/film interface. A photon energy source having an energy level greater than the potential is directed at the depletion region to form electron-hole pairs in the depletion region. At least one of the electron-hole pairs is separated by the potential into an independent electron and an independent hole having opposite charges and move in opposing directions. One of the electron and hole reach the substrate/film interface to create a photopotential in the film causing charged molecules in the film to move in response to the localized photovoltage.

Inventors:
; ;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175870
Patent Number(s):
7090757
Application Number:
10/077,633
Assignee:
UT-Battelle LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Thundat, Thomas G., Ferrell, Thomas L., and Brown, Gilbert M. Photoelectrochemical molecular comb. United States: N. p., 2006. Web.
Thundat, Thomas G., Ferrell, Thomas L., & Brown, Gilbert M. Photoelectrochemical molecular comb. United States.
Thundat, Thomas G., Ferrell, Thomas L., and Brown, Gilbert M. Tue . "Photoelectrochemical molecular comb". United States. https://www.osti.gov/servlets/purl/1175870.
@article{osti_1175870,
title = {Photoelectrochemical molecular comb},
author = {Thundat, Thomas G. and Ferrell, Thomas L. and Brown, Gilbert M.},
abstractNote = {A method and apparatus for separating molecules. The apparatus includes a substrate having a surface. A film in contact with the surface defines a substrate/film interface. An electrode electrically connected to the film applies a voltage potential between the electrode and the substrate to form a depletion region in the substrate at the substrate/film interface. A photon energy source having an energy level greater than the potential is directed at the depletion region to form electron-hole pairs in the depletion region. At least one of the electron-hole pairs is separated by the potential into an independent electron and an independent hole having opposite charges and move in opposing directions. One of the electron and hole reach the substrate/film interface to create a photopotential in the film causing charged molecules in the film to move in response to the localized photovoltage.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {8}
}

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Works referenced in this record:

Chemical-imaging sensor using enzyme
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Heterogeneous integration through electrokinetic migration
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Photoelectrophoretic Transport and Hybridization of DNA Oligonucleotides on Unpatterned Silicon Substrates
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Development and characterization of a titanium dioxide-based semiconductor photoelectrochemical detector
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