Photoconductivity and current-voltage characteristics of thin DNA films: Experiments and modeling
Publication
, Journal Article
Venkatramani, R; Zang, DY; Oh, C; Grote, J; Beratan, D
Published in: Proceedings of SPIE - The International Society for Optical Engineering
January 1, 2009
We report experimental observations and theoretical modeling of an unusual photoelectric effect in deoxyribonucleic acid (DNA) thin-film devices, under visible and near-infrared illumination. The devices also show diode-type rectifying current-voltage (I-V) characteristics. An equivalent circuit model was constructed that fits the experimental data, and physical processes likely to arise in the devices are discussed. We envisage the formation of a Schottky barrier at the DNA film-metal interface and infer that the photoresponse arises from photoinjection of electrons from the metal into the DNA film. © 2009 SPIE.
Duke Scholars
Published In
Proceedings of SPIE - The International Society for Optical Engineering
DOI
ISSN
0277-786X
Publication Date
January 1, 2009
Volume
7403
Related Subject Headings
- 5102 Atomic, molecular and optical physics
- 4009 Electronics, sensors and digital hardware
- 4006 Communications engineering
Citation
APA
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ICMJE
MLA
NLM
Venkatramani, R., Zang, D. Y., Oh, C., Grote, J., & Beratan, D. (2009). Photoconductivity and current-voltage characteristics of thin DNA films: Experiments and modeling. Proceedings of SPIE - The International Society for Optical Engineering, 7403. https://doi.org/10.1117/12.831024
Venkatramani, R., D. Y. Zang, C. Oh, J. Grote, and D. Beratan. “Photoconductivity and current-voltage characteristics of thin DNA films: Experiments and modeling.” Proceedings of SPIE - The International Society for Optical Engineering 7403 (January 1, 2009). https://doi.org/10.1117/12.831024.
Venkatramani R, Zang DY, Oh C, Grote J, Beratan D. Photoconductivity and current-voltage characteristics of thin DNA films: Experiments and modeling. Proceedings of SPIE - The International Society for Optical Engineering. 2009 Jan 1;7403.
Venkatramani, R., et al. “Photoconductivity and current-voltage characteristics of thin DNA films: Experiments and modeling.” Proceedings of SPIE - The International Society for Optical Engineering, vol. 7403, Jan. 2009. Scopus, doi:10.1117/12.831024.
Venkatramani R, Zang DY, Oh C, Grote J, Beratan D. Photoconductivity and current-voltage characteristics of thin DNA films: Experiments and modeling. Proceedings of SPIE - The International Society for Optical Engineering. 2009 Jan 1;7403.
Published In
Proceedings of SPIE - The International Society for Optical Engineering
DOI
ISSN
0277-786X
Publication Date
January 1, 2009
Volume
7403
Related Subject Headings
- 5102 Atomic, molecular and optical physics
- 4009 Electronics, sensors and digital hardware
- 4006 Communications engineering