Scholarlink

<p>This research presents an innovative solar absorber design incorporating graphene-based resonators on LaAlO₃ substrates with titanium coating. The device features a central square ring resonator surrounded by a circular ring structure achieving an impressive 95.43% average absorption across the 200–3000&#xa0;nm spectrum. The absorber demonstrates exceptional performance in both visible (94.91%) and infrared regions (98.02%), with minimal reflection and negligible transmission. Performance analysis under varying conditions shows robust absorption characteristics across different angles of incidence in both TE and TM polarizations. The study employs Random Forest Regression for optimization, achieving 96–98% accuracy in predicting absorption behaviour under different operational parameters. The design’s high efficiency, coupled with the use of cost-effective materials like titanium, makes it particularly suitable for high-temperature solar thermal applications, offering significant advantages over existing designs in terms of both performance and practicality.</p>

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High-Efficiency Broadband Solar Absorber Based on Graphene/YBCO/LaAlO₃/Ti for Enhanced Solar Thermal Performance Using Random Forest Regression

  • 期刊论文

  • 发表日期：

    2025年3月5日

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  • Jacob Wekalao

摘要

This research presents an innovative solar absorber design incorporating graphene-based resonators on LaAlO₃ substrates with titanium coating. The device features a central square ring resonator surrounded by a circular ring structure achieving an impressive 95.43% average absorption across the 200–3000 nm spectrum. The absorber demonstrates exceptional performance in both visible (94.91%) and infrared regions (98.02%), with minimal reflection and negligible transmission. Performance analysis under varying conditions shows robust absorption characteristics across different angles of incidence in both TE and TM polarizations. The study employs Random Forest Regression for optimization, achieving 96–98% accuracy in predicting absorption behaviour under different operational parameters. The design’s high efficiency, coupled with the use of cost-effective materials like titanium, makes it particularly suitable for high-temperature solar thermal applications, offering significant advantages over existing designs in terms of both performance and practicality.