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Modeling the influences of Ag or Au nanoparticles on the solar energy absorption and photocatalytic properties of N-TiO2
- Source :
- Optics Communications. 407:375-380
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- Metallic nanoparticles have unique optical properties such as localized surface plasmon resonance (LSPR) effect, which can be used to improve the energy absorption and photocatalytic properties of semiconductor bases. In this paper, we construct a model to study the influence of Ag or Au nanoparticles (cubes or spheres) on the solar energy absorption and photocatalytic properties of nitrogen doped TiO 2 (or N-TiO 2 ). Effects of specific nanoparticle coupling parameters, such as particle shape, size, doping period (metal–metal distance) and separation distance (metal–semiconductor distance), on the properties of N-TiO 2 are studied in detail. We show that the photocurrent improvement can be optimized by setting suitable geometric parameters. In particular, the separation distance between metallic nanoparticles and N-TiO 2 D should be around 6–7 nm, and the period of doping P should be around 360 nm. The silver cubes with edge length L = 120 n m show the best performance. The results can help the design of solar energy materials, in which metallic nanoparticles may play an important role.
- Subjects :
- Materials science
Physics::Optics
Nanoparticle
Nanotechnology
02 engineering and technology
010402 general chemistry
01 natural sciences
Condensed Matter::Materials Science
Optics
Electrical and Electronic Engineering
Physical and Theoretical Chemistry
Surface plasmon resonance
Absorption (electromagnetic radiation)
Photocurrent
business.industry
Doping
021001 nanoscience & nanotechnology
Atomic and Molecular Physics, and Optics
0104 chemical sciences
Electronic, Optical and Magnetic Materials
Semiconductor
Chemical engineering
Photocatalysis
Particle
0210 nano-technology
business
Subjects
Details
- ISSN :
- 00304018
- Volume :
- 407
- Database :
- OpenAIRE
- Journal :
- Optics Communications
- Accession number :
- edsair.doi...........8933b15ff581339f6338d48566596ed7