Sumbel Ijaz, Muhammad Qasim Mehmood, Khaled A. Aljaloud, Rifaqat Hussain, Ali H. Alqahtani, and Akram Alomainy
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UV-VIS-NIR absorber to harvest energy for solar thermophotovoltaics
Ideal ultraviolet-visible-infrared (UV-VIS-NIR) absorbers with consistent performance at elevated temperatures and severe climate conditions are crucial to harvest energy for solar-thermophotovoltaic systems (STPVs). As solar energy promises to fulfill the power demands, its efficient utilization through high-performing light-absorbing devices is inevitable. The requirement of high-temperature durability makes conventional plasmonics an infeasible choice, and those highly thermostable refractory metals/their derivatives suitable ones. In this work, a lossy refractory plasmonic material i.e. Zirconium-Nitride-based subwavelength, ultra-broadband, wide-angle, polarization-insensitive, and free-space impedance-matched metasurface absorber in a three-level Pythagorean fractal structure is demonstrated. A comprehensive investigative study is conducted with the successful attainment of more than 90% absorption between ∼ 500–900 nm with a peak of more than 98% at 655 nm. The mean absorption for wideband (200–2500 nm) is 86.01% and it is 91.37% for visible range. The proposed study provides an efficient choice of meta-absorbers for realizing highly efficient STPVs.
期刊介绍:
The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optical Materials Express (OMEx), OSA''s open-access, rapid-review journal, primarily emphasizes advances in both conventional and novel optical materials, their properties, theory and modeling, synthesis and fabrication approaches for optics and photonics; how such materials contribute to novel optical behavior; and how they enable new or improved optical devices. The journal covers a full range of topics, including, but not limited to:
Artificially engineered optical structures
Biomaterials
Optical detector materials
Optical storage media
Materials for integrated optics
Nonlinear optical materials
Laser materials
Metamaterials
Nanomaterials
Organics and polymers
Soft materials
IR materials
Materials for fiber optics
Hybrid technologies
Materials for quantum photonics
Optical Materials Express considers original research articles, feature issue contributions, invited reviews, and comments on published articles. The Journal also publishes occasional short, timely opinion articles from experts and thought-leaders in the field on current or emerging topic areas that are generating significant interest.