title: Transparent and flexible resistive switching memory devices with a very high ON/OFF ratio using gold nanoparticles embedded in a silk protein matrix.
abstract: The growing demand for biomaterials for electrical and optical devices is motivated by the need to make building blocks for the next generation of printable bio-electronic devices. In this study, transparent and flexible resistive memory devices with a very high ON/OFF ratio incorporating gold nanoparticles into the Bombyx mori silk protein fibroin biopolymer are demonstrated. The novel electronic memory effect is based on filamentary switching, which leads to the occurrence of bistable states with an ON=OFF ratio larger than six orders of magnitude. The mechanism of this process is attributed to the formation of conductive filaments through silk fibroin and gold nanoparticles in the nanocomposite. The proposed hybrid bio-inorganic devices show promise for use in future flexible and transparent nanoelectronic systems.
authors.affiliation: Department of Physics and Meteorology, Indian Institute of Technology, Kharagpur 721302, India.
authors.forename: Narendar
authors.initials: N
authors.lastname: Gogurla
authors.forename: Suvra P
authors.initials: SP
authors.lastname: Mondal
authors.forename: Arun K
authors.initials: AK
authors.lastname: Sinha
authors.forename: Ajit K
authors.initials: AK
authors.lastname: Katiyar
authors.forename: Writam
authors.initials: W
authors.lastname: Banerjee
authors.forename: Subhas C
authors.initials: SC
authors.lastname: Kundu
authors.forename: Samit K
authors.initials: SK
authors.lastname: Ray
mesh_terms: D000818:Animals; D001672:Biocompatible Materials / Q000737:chemistry*; D012831:Bombyx; D004581:Electronics / Q000295:instrumentation*; D005349:Fibroins / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D056951:Photoelectron Spectroscopy; D012996:Solutions
chemical_list: D001672:Biocompatible Materials; D012996:Solutions; D006046:Gold; D005349:Fibroins