Electronic transport in organic memories of chitosan with gold nanoparticles
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Germán Ayala Valencia
,
Jaiber Humberto Rodríguez Llanos
Abstract
The effect of gold nanoparticles (AuNPs) on the electronic transport in chitosan and chitosan/AuNPs films was experimentally and theoretically studied. The electronic properties (current-voltage curves) relative to the transport in the organic bulk in films were fitted to various models: space-charge limited current (SCLC), trap-charge limited current (TCLC) and scaling rule. However, it was found that the TCLC model, ITCLC(V)αVl+1 and scaling rule, I(V)α(V-VT)ξ, describes better the electronic transport in chitosan and chitosan/AuNPs films. Current-voltage (I-V) curves showed an increasing conductivity with the AuNPs concentration. In addition, a bistable behavior was observed in chitosan/AuNPs films and it was attributed to the electron capture in the AuNPs. The results reported in this paper indicate that the electronic conductivity and bistable behavior in chitosan/AuNPs films could be controlled by the AuNPs incorporation on the chitosan matrix.
Acknowledgments
The authors gratefully acknowledge the financial support from Fundação de Apoio à Pesquisa do Estado de São Paulo (FAPESP), grant number 2010/50424-3 and the laboratories of Chemistry, Biology and Functionality and Food Technology of the Animal Science and Food Engineering College, University of São Paulo, for the measurements of UV-Vis spectra, and energy dispersive X-ray spectroscopy, respectively.
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©2014 by Walter de Gruyter Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Original articles
- Electronic transport in organic memories of chitosan with gold nanoparticles
- The influence of transport layers on the photodegradation stability of polymer solar cell structures
- Synthesis and properties of acrylamide 2-acrylamido-2-methypropane sulfonic acid sodium styrene sulfonate N-vinyl pyrrolidone quadripolymer and its reduction of drilling fluid filtration at high temperature and high salinity
- Synthesis and characterization of a series of novel amino β-cyclodextrin-conjugated poly(ε-lysine) derivatives
- Cellulose fibre-cellulose acetate hybrid composites with nanosilica
- Assessment and influence of internal rigid core on the contact parameters for soft hemispherical fingertips
- Properties of high temperature resistance and salt tolerance drilling fluids incorporating acrylamide/2-acrylamido-2-methyl-1-propane sulfonic acid/N-vinylpyrrolidone/dimethyl diallyl ammonium chloride quadripolymer as fluid loss additives
- Thermotropic overheating protection glazings: effect of functional additives and processing conditions on the overheating protection performance
- Experimental rapid surface heating by induction for injection molding of large LCD TV frames
- Effect of reaction conditions on the thermal stability of polystyrene grafted oil palm empty fruit bunch (OPEFB) fiber
- Compatibilization of polyamide 6/poly(2,6-dimethyl-1,4-phenylene oxide) blends by poly(styrene-co-maleic anhydride)
Artikel in diesem Heft
- Frontmatter
- Original articles
- Electronic transport in organic memories of chitosan with gold nanoparticles
- The influence of transport layers on the photodegradation stability of polymer solar cell structures
- Synthesis and properties of acrylamide 2-acrylamido-2-methypropane sulfonic acid sodium styrene sulfonate N-vinyl pyrrolidone quadripolymer and its reduction of drilling fluid filtration at high temperature and high salinity
- Synthesis and characterization of a series of novel amino β-cyclodextrin-conjugated poly(ε-lysine) derivatives
- Cellulose fibre-cellulose acetate hybrid composites with nanosilica
- Assessment and influence of internal rigid core on the contact parameters for soft hemispherical fingertips
- Properties of high temperature resistance and salt tolerance drilling fluids incorporating acrylamide/2-acrylamido-2-methyl-1-propane sulfonic acid/N-vinylpyrrolidone/dimethyl diallyl ammonium chloride quadripolymer as fluid loss additives
- Thermotropic overheating protection glazings: effect of functional additives and processing conditions on the overheating protection performance
- Experimental rapid surface heating by induction for injection molding of large LCD TV frames
- Effect of reaction conditions on the thermal stability of polystyrene grafted oil palm empty fruit bunch (OPEFB) fiber
- Compatibilization of polyamide 6/poly(2,6-dimethyl-1,4-phenylene oxide) blends by poly(styrene-co-maleic anhydride)
