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Title: Electron transport in carbon nanotube/RbAg{sub 4}I{sub 5} film composite nanostructures modulated by optical field

We explore the transport properties of mixed ionic-electronic conductors made of carbon nanotube/RbAg{sub 4}I{sub 5} film composite nanostructures in the presence of optical fields. The formation of ion-electron bound states (IEBSs) due to Coulomb interactions results in significant conductance decrease. The wavelength-dependent and power-dependent dynamic responses show that the effect of photo-induced dissociation of IEBSs is pronounced in the visible region and negligible in near-infrared region. Our results lead to a deeper understanding of the impact of ion-electron interactions (IEIs) on transport and are expected to open up a way for designing new-type photodetectors based on IEIs.
Authors:
;  [1] ;  [2] ;  [3] ;  [1] ;  [4]
  1. State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084 (China)
  2. Key Lab for Advanced Materials Processing Technology of Education Ministry, School of Materials Science and Engineering, Tsinghua University, Beijing 100084 (China)
  3. Institute of Applied Physics and Computational Mathematics, P.O. Box 8009(28), Beijing 100088 (China)
  4. (China)
Publication Date:
OSTI Identifier:
22299918
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 24; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 77 NANOSCIENCE AND NANOTECHNOLOGY; BOUND STATE; CARBON NANOTUBES; COMPOSITE MATERIALS; DISSOCIATION; ELECTROMAGNETIC FIELDS; ELECTRON MOBILITY; ELECTRON-ION COUPLING; ELECTRONS; FILMS; INTERACTIONS; IODINE COMPOUNDS; PHOTODETECTORS; RUBIDIUM COMPOUNDS; SILVER COMPOUNDS; WAVELENGTHS