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Improving photostability and efficiency of polymeric luminescent solar concentrators by PMMA/MgO nanohybrid coatings |
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| Authors: | S M El-Bashir IS Yahia F Al-Harbi H Elburaih F Al-Faifi N A Aldosari |
| Institution: | 1. Department of Physics &2. Astronomy, Science College, King Saud University, Riyadh, Saudi Arabia;3. Department of Physics, Faculty of Science, Benha University, Benha, Egypt;4. Department of Physics, Faculty of Science, King Khalid University, Abha, Saudi Arabia;5. Physics Department, Nano-Science &6. Semiconductor Labs, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt;7. Department of Physics, College of Science, Princess Nora Bint Abdulrahman University, Riyadh, Saudi Arabia;8. Physics Department, College of Sciences and Humanities, Salman Bin Abdulaziz University, Alkharj, Saudi Arabia |
| Abstract: | MgO nanocrystals were synthesized and doped with different concentrations in poly(methylmethacrylate) (PMMA) to prepare hybrid organic-inorganic coatings based on polymer nanohybrid thin films. The nanoparticles were found to be spherical with 62 nm diameter as determined by X-ray diffraction (XRD) and atomic force microscope (AFM). The coatings were characterized by spectroscopic tools such as optical absorption, transmission and fluorescence spectroscopy. The prepared nanohybrid films were spin-coated on cost-effective luminescent PMMA substrates doped with highly efficient luminescent dyes luminescent solar concentrators (LSCs). The outdoor photostability tests demonstrated enhanced protection against UVA radiation for coated LSCs compared to bare LSC substrates. The current–voltage characteristics of commercially produced LSC prototypes showed that the poor UV response of monocrystalline silicon solar cell can be improved by for LSCs coated by PMMA/MgO nanohybrid films which act as luminescent down shifting layer (LDSL). |
| Keywords: | Luminescent solar concentrator photoluminescence photostability PMMA nanohybrids textured monocrystalline silicon PV cell |