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Design and optimization of graphene quantum dot-based luminescent solar concentrator using Monte-Carlo simulation

Energy and Built Environment 2023年第2期4卷 140-147页

作者： Milad Rastkar Mirzaei Ali Rostami Samiye Matloub masoumeh nazari ECE Department University of OklahomaNormanOklahoma73019United States Photonics and Nanocrystals Research Lab(PNRL) University of TabrizTabriz***Iran SP-EPT Lab ASEPE CompanyIndustrial Park of Advanced TechnologiesTabrizIran Quantum Photonics Research Lab(QPRL) University of TabrizTabriz***Iran

The demand for green energy is growing these days as a result of the world energy crisis,as well as global *** cells are in great interest due to the fact that solar energy can be easily converted to electricity,if the photovoltaic cell’s cost can be *** of the methods to make low-cost energy is using Luminescent solar *** have the advantage of directly integrating solar cells to dense urban areas as well as *** materials and waveguide sizes have been investigated for use in luminescent solar ***,the optimized waveguide geometry and quantum dots concentrators have not been thoroughly *** this paper,we have simulated graphene quantum dots using density function theory.A Monte-Carlo ray-tracing simulation was developed to model our *** have optimized the luminescent solar concentrator geometry by Monte-Carlo *** optimization results show a 99%enhancement in the energy flux gain of the final ***,we have calculated and analyzed the fate of all photons.

关键词： Luminescent solar concentrator Solar cell Quantum dot Graphene Energy-efficient building Monte Carlo

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Imidazol-1-yl-acetic acid as a novel green bifunctional organocatalyst for the synthesis of 1,8-dioxooctahydroxanthenes under solvent-free conditions

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Chinese Chemical Letters 2014年第2期25卷 317-320页

作者： Simin nazari Mosadegh Keshavarz Bahador Karami Nasir Iravani masoumeh Vafaee-Nezhad Department of Chemistry.Sousangerd Branch Islamic Azad University Department of Chemistry Yasouj University Department of Chemistry Gachsaran BranchIslamic Azad University

Imidazol-1-yl-acetic acid is introduced as a new, efficient and recyclable green bifunctional organocatalyst for the synthesis of 1,8-dioxooctahydroxanthenes under solvent-free conditions. This catalyst is water soluble and can be separated from the products by simple filtration. The filtrate can be evaporated to dryness and recrystallized from cool methanol to give the recovered catalyst. This organocatalyst was used for the synthesis of 1,8-dioxooctahydroxanthenes under solvent-flee conditions and recycled up to 8 consecutive runs without any losing of its efficiency.

关键词： Bifunctional catalyst Organocatalyst Solvent-free 1,3-Dicarbonyl compounds 1,8-Dioxooctahydroxanthenes

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