Enhanced spectral splitting in a novel solar spectrum optical splitter based on one dimensional photonic crystal heterostructure
| Autor: | Yijie Liu, Jian Wang, Xingjun Liu, Qian Zhang, Qingmei Wang, Dong Wei, Zuoxu Wu, Feng Cao |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Band gap Solar absorptance Effective impedance Physics::Optics 02 engineering and technology Solar spectral splitting 010402 general chemistry 01 natural sciences 1D photonic crystal heterostructure Condensed Matter::Materials Science Thermal Fiber optic splitter lcsh:TA401-492 Optical filter Electrical impedance Photonic crystal business.industry Photovoltaic system Metals and Alloys Heterojunction 021001 nanoscience & nanotechnology 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Optoelectronics lcsh:Materials of engineering and construction. Mechanics of materials 0210 nano-technology business |
| Zdroj: | Journal of Materiomics, Vol 7, Iss 3, Pp 648-655 (2021) |
| ISSN: | 2352-8478 |
| Popis: | Controlling the distribution of solar spectrum in different bands would boost the energy harvesting efficiency and optimize the energy dispatchability. 1D photonic crystal with intrinsic optical band gap can be used to split the solar spectrum for hybrid photovoltaic/thermal solar applications. Here, we designed an efficient solar spectrum optical filter based on a cermet layer, Si/SiO2 1D photonic crystal, and top heterostructure layer. Compared with 1D photonic crystal structure, the 1D photonic crystal heterostructure with top YSZ layer can realize the reflectance of greater than 92% in PV band and the low average reflectance in two thermal bands by tuning the effective impedance of multilayer films. The enhanced reflectance in PV band results from the huge mismatching of impedance between free space and the heterostructure structure. The top dielectric layer can also be extended to other oxides. |
| Databáze: | OpenAIRE |
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