Optical properties of DNA-CTMA biopolymers and applications in metal-biopolymer-metal photodetectors

Bin Zhou, Sung Jin Kim, Carrie M. Bartsch, Emily M. Heckman, Fahima Ouchen, Alexander N. Cartwright

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The potential of using a DNA biopolymer in an electro-optic device is presented. A complex of DNA with the cationic surfactant cetyltrimethylammonium- chloride (CTMA) was used to obtain an organic-soluble DNA material (DNA-CTMA). Poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) was added to the DNACTMA to increase the electrical conductivity of the biopolymer. The CW absorbance and time-resolved photoluminescence of the resulting DNA-CTMA and DNA-CTMA-PEDOT:PSS were investigated. Both DNA materials have absorbance peaks at ~260 nm and a broad, Stokes shifted, photoluminescence peak around 470nm. The photoluminescence lifetime of the materials was observed to decrease with increasing UV excitation. Specifically, excitation with a high power ultrafast (~150fs) UV (266nm) laser pulse resulted in a drastic decrease in the photoluminescence lifetime decreases after a few minutes. Moreover, the observed decrease was faster in an air ambient than in a nitrogen ambient. This is most likely due to photo-oxidation that degrades the polymer surface resulting in an increase in the non-radiative recombination. In order to investigate the photoconductivity of these two materials, metal-biopolymer-metal (MBM) ultraviolet photodetectors with interdigitated electrodes were fabricated and characterized. The photoresponsivity of these devices was limited by the transport dynamics within the film. The prospects for the use of these materials in optical devices will be discussed.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume8103
DOIs
StatePublished - Oct 11 2011
EventNanobiosystems: Processing, Characterization, and Applications IV - San Diego, CA, United States
Duration: Aug 21 2011Aug 22 2011

Other

OtherNanobiosystems: Processing, Characterization, and Applications IV
CountryUnited States
CitySan Diego, CA
Period8/21/118/22/11

Fingerprint

Biopolymers
biopolymers
Photodetector
Photodetectors
Optical Properties
photometers
Photoluminescence
DNA
deoxyribonucleic acid
Optical properties
Metals
chlorides
optical properties
Decrease
metals
photoluminescence
Lifetime
Excitation
Photoconductivity
Ultrafast Lasers

Keywords

  • biopolymer
  • DNA-CTMA
  • MBM
  • PEDOT:PSS
  • photodetector

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Zhou, B., Kim, S. J., Bartsch, C. M., Heckman, E. M., Ouchen, F., & Cartwright, A. N. (2011). Optical properties of DNA-CTMA biopolymers and applications in metal-biopolymer-metal photodetectors. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 8103). [810308] https://doi.org/10.1117/12.892857

Optical properties of DNA-CTMA biopolymers and applications in metal-biopolymer-metal photodetectors. / Zhou, Bin; Kim, Sung Jin; Bartsch, Carrie M.; Heckman, Emily M.; Ouchen, Fahima; Cartwright, Alexander N.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8103 2011. 810308.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zhou, B, Kim, SJ, Bartsch, CM, Heckman, EM, Ouchen, F & Cartwright, AN 2011, Optical properties of DNA-CTMA biopolymers and applications in metal-biopolymer-metal photodetectors. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 8103, 810308, Nanobiosystems: Processing, Characterization, and Applications IV, San Diego, CA, United States, 8/21/11. https://doi.org/10.1117/12.892857
Zhou B, Kim SJ, Bartsch CM, Heckman EM, Ouchen F, Cartwright AN. Optical properties of DNA-CTMA biopolymers and applications in metal-biopolymer-metal photodetectors. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8103. 2011. 810308 https://doi.org/10.1117/12.892857
Zhou, Bin ; Kim, Sung Jin ; Bartsch, Carrie M. ; Heckman, Emily M. ; Ouchen, Fahima ; Cartwright, Alexander N. / Optical properties of DNA-CTMA biopolymers and applications in metal-biopolymer-metal photodetectors. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8103 2011.
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abstract = "The potential of using a DNA biopolymer in an electro-optic device is presented. A complex of DNA with the cationic surfactant cetyltrimethylammonium- chloride (CTMA) was used to obtain an organic-soluble DNA material (DNA-CTMA). Poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) was added to the DNACTMA to increase the electrical conductivity of the biopolymer. The CW absorbance and time-resolved photoluminescence of the resulting DNA-CTMA and DNA-CTMA-PEDOT:PSS were investigated. Both DNA materials have absorbance peaks at ~260 nm and a broad, Stokes shifted, photoluminescence peak around 470nm. The photoluminescence lifetime of the materials was observed to decrease with increasing UV excitation. Specifically, excitation with a high power ultrafast (~150fs) UV (266nm) laser pulse resulted in a drastic decrease in the photoluminescence lifetime decreases after a few minutes. Moreover, the observed decrease was faster in an air ambient than in a nitrogen ambient. This is most likely due to photo-oxidation that degrades the polymer surface resulting in an increase in the non-radiative recombination. In order to investigate the photoconductivity of these two materials, metal-biopolymer-metal (MBM) ultraviolet photodetectors with interdigitated electrodes were fabricated and characterized. The photoresponsivity of these devices was limited by the transport dynamics within the film. The prospects for the use of these materials in optical devices will be discussed.",
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