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Title: Optically controlled multiple switching operations of DNA biopolymer devices

We present optically tunable operations of deoxyribonucleic acid (DNA) biopolymer devices, where a single high-resistance state, write-once read-many-times memory state, write-read-erase memory state, and single low-resistance state can be achieved by controlling UV irradiation time. The device is a simple sandwich structure with a spin-coated DNA biopolymer layer sandwiched by two electrodes. Upon irradiation, the electrical properties of the device are adjusted owing to a phototriggered synthesis of silver nanoparticles in DNA biopolymer, giving rise to multiple switching scenarios. This technique, distinct from the strategy of doping of pre-formed nanoparticles, enables a post-film fabrication process for achieving optically controlled memory device operations, which provides a more versatile platform to fabricate organic memory and optoelectronic devices.
Authors:
; ;  [1] ;  [2] ;  [1] ;  [3]
  1. Institute of Photonics Technologies, National Tsing Hua University, Hsinchu 30013, Taiwan (China)
  2. Department of Chemical Engineering and Biotechnology, University of Cambridge, Pembroke Street, Cambridge CB2 3RA (United Kingdom)
  3. (China)
Publication Date:
OSTI Identifier:
22493076
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 118; Journal Issue: 23; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; DNA; ELECTRICAL PROPERTIES; ELECTRODES; MEMORY DEVICES; NANOPARTICLES; OPTOELECTRONIC DEVICES; ORGANIC POLYMERS; SILVER; SPIN-ON COATINGS; SYNTHESIS; THIN FILMS; ULTRAVIOLET RADIATION