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Proceedings Paper

Bistable memory device based on DNA biopolymer nanocomposite
Author(s): Yi-Tzu Lin; Ting-Yu Lin; Yu-Chueh Hung
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Paper Abstract

Deoxyribonucleic acid (DNA), as one kind of biopolymer, has recently emerged as an attractive optical material, showing promise in making versatile optoelectronic devices. In the present study, we report the fabrication and characterization of DNA biopolymer nanocomposite with tunable conductivities and the application in bistable memory device. DNA nanocomposite consisting of DNA biopolymer and silver nanoparticles is synthesized using a phototriggered method. The nanocomposite exhibits tunable conductivities when exposed to UV light under different periods of time. The electrical conductivity is suggested to be dependent on the quantity and the distribution of silver nanoparticles formed in DNA biopolymer. In addition, a memory device based on DNA biopolymer nanocomposite is demonstrated. The operation of different conductivity states can be adjusted by the concentration of nanoparticles. The device shows bistability of current, and presents a stable write-read-erase cycle. Detailed performance of the DNA-based memory device will be presented and discussed.

Paper Details

Date Published: 1 May 2014
PDF: 6 pages
Proc. SPIE 9137, Organic Photonics VI, 913715 (1 May 2014); doi: 10.1117/12.2052062
Show Author Affiliations
Yi-Tzu Lin, National Tsing Hua Univ. (Taiwan)
Ting-Yu Lin, National Tsing Hua Univ. (Taiwan)
Yu-Chueh Hung, National Tsing Hua Univ. (Taiwan)

Published in SPIE Proceedings Vol. 9137:
Organic Photonics VI
Barry P. Rand; Chihaya Adachi; David Cheyns; Volker van Elsbergen, Editor(s)

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