CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 8103 > Article
Open Access Paper
15 September 2011 Studies of charge transport in DNA films using the time-of-flight (TOF) technique
Perry P. Yaney, Timothy Gorman, Fahima Ouchen, James G. Grote
Author Affiliations +
Proceedings Volume 8103, Nanobiosystems: Processing, Characterization, and Applications IV; 81030H (2011) https://doi.org/10.1117/12.896484
Event: SPIE NanoScience + Engineering, 2011, San Diego, California, United States
Abstract
Measurements were carried out on salmon DNA-based films, including as-received DNA (molecular weight, MW>2000 kDa) without and with hexacetyltrimethl-ammonium chloride (CTMA) surfactant, and sonicated DNA of MW~200 kDa with CTMA. The test specimens were spin-coated or drop-cast films on ITO-coated quartz slides with a gold charge-collecting electrode. To protect the films from atmospheric influences, the TOF devices were coated with a 200-400 nm polyurethane passivation layer. A quadrupled 20 ns, pulsed Nd:YAG laser with output at 266 nm was used for charge injection. The room temperature photoconductive transients were dispersive to varying degrees with hole mobilities in DNA materials films ranging between 2E-5 to 6E-3 cm2/Vs for fields ranging from 8 to 58 kV/cm. Only hole response was observed in DNA. The dispersive data were analyzed using a simple, quasi-empirical equation for the photocurrent transient data.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Perry P. Yaney, Timothy Gorman, Fahima Ouchen, and James G. Grote "Studies of charge transport in DNA films using the time-of-flight (TOF) technique", Proc. SPIE 8103, Nanobiosystems: Processing, Characterization, and Applications IV, 81030H (15 September 2011); https://doi.org/10.1117/12.896484
PROCEEDINGS
 7 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Lens.org Logo
CITATIONS
Cited by 2 scholarly publications.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Electrodes
Molecules
Polyurethane
Absorption
Humidity
Polymers
Quartz
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top