Facile synthesis of uniformly dispersed ZnO nanoparticles on a polystyrene/rGO matrix and its superior electrical conductivity and photocurrent generation
| Autor: | M. Sterlin Leo Hudson, T. Sonia, M. Jeyavelan, A. Ramesh, R. Rathes Kannan, K. Rugunandhiri |
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| Rok vydání: | 2017 |
| Předmět: |
Photocurrent
Materials science General Chemical Engineering Composite number 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Dielectric spectroscopy chemistry.chemical_compound chemistry Chemical engineering Electrical resistivity and conductivity Polystyrene Transient response Fourier transform infrared spectroscopy 0210 nano-technology High-resolution transmission electron microscopy |
| Zdroj: | RSC Advances. 7:31272-31280 |
| ISSN: | 2046-2069 |
| DOI: | 10.1039/c7ra04361a |
| Popis: | Herein, a ZnO/PS/rGO composite was prepared via a simple reflex method and its microstructural and physical properties were characterized using XRD, SEM, HRTEM, TGA and FTIR, UV-visible, and PL spectroscopies. DC and AC electrical conductivities of the composite were measured using a four-point collinear probe method. The charge transfer resistance and photocurrent transient response were characterized via electrochemical impedance spectroscopy. It has been observed that in the ZnO/PS/rGO composite, even a small amount of rGO (5 wt%) effectively increases its electrical conductivity. PCTR and OCVD measurements revealed that the photocurrent response of ZnO was markedly improved when it was used in the composite ZnO/PS/rGO form; this suggested the viability of the ZnO/PS/rGO composite for practical applications. |
| Databáze: | OpenAIRE |
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