title: Efficiency Enhancement of InGaN-Based Solar Cells via Stacking Layers of Light-Harvesting Nanospheres.
abstract: An effective light-harvesting scheme for InGaN-based multiple quantum well solar cells is demonstrated using stacking layers of polystyrene nanospheres. Light-harvesting efficiencies on the solar cells covered with varied stacks of nanospheres are evaluated through numerical and experimental methods. The numerical simulation reveals that nanospheres with 3 stacking layers exhibit the most improved optical absorption and haze ratio as compared to those obtained by monolayer nanospheres. The experimental demonstration, agreeing with the theoretical analyses, shows that the application of 3-layer nanospheres improves the conversion efficiency of the solar cell by ~31%.
authors.affiliation: King Abdullah University of Science &Technology (KAUST), Computer, Electrical and Mathematical Sciences and Engineering Division, Thuwal, 23955-6900, Saudi Arabia.
authors.forename: Amal M
authors.initials: AM
authors.lastname: Al-Amri
authors.affiliation: King Abdullah University of Science &Technology (KAUST), Computer, Electrical and Mathematical Sciences and Engineering Division, Thuwal, 23955-6900, Saudi Arabia.
authors.forename: Po-Han
authors.initials: PH
authors.lastname: Fu
authors.affiliation: National Central University, Department of Optics and Photonics, Chung-Li 32001, Taiwan.
authors.forename: Kun-Yu
authors.initials: KY
authors.lastname: Lai
authors.affiliation: King Abdullah University of Science &Technology (KAUST), Computer, Electrical and Mathematical Sciences and Engineering Division, Thuwal, 23955-6900, Saudi Arabia.
authors.forename: Hsin-Ping
authors.initials: HP
authors.lastname: Wang
authors.affiliation: King Abdullah University of Science &Technology (KAUST), Physical Science and Engineering Division, Thuwal, 23955-6900, Saudi Arabia.
authors.forename: Lain-Jong
authors.initials: LJ
authors.lastname: Li
authors.affiliation: King Abdullah University of Science &Technology (KAUST), Computer, Electrical and Mathematical Sciences and Engineering Division, Thuwal, 23955-6900, Saudi Arabia.
authors.forename: Jr-Hau
authors.initials: JH
authors.lastname: He