title: Enhanced angular characteristics of indium tin oxide nanowhisker-coated silicon solar cells.
abstract: Omnidirectional and broadband light harvesting is critical to photovoltaics due to the sun's movement and its wide spectral range of radiation. In this work, we demonstrate distinctive indium-tin-oxide nanowhiskers that achieve superior angular and spectral characteristics for crystalline silicon solar cells using angle-resolved reflectance spectroscopy. The solar-spectrum weighted reflectance is well below 6% for incident angles of up to 70° and for the wavelength range between 400nm and 1000nm. As a result, the nanowhisker coated solar cell exhibits broadband quantum efficiency characteristics and enhanced short-circuit currents for large angles of incidence.
authors.affiliation: Department of Photonics and Institute of Electro-Optical Engineering, National Chiao-Tung University, 1001 Ta-Hsueh Road, Hsinchu, 300 Taiwan.
authors.forename: Chia-Hua
authors.initials: CH
authors.lastname: Chang
authors.forename: Min-Hsiang
authors.initials: MH
authors.lastname: Hsu
authors.forename: Ping-Chen
authors.initials: PC
authors.lastname: Tseng
authors.forename: Peichen
authors.initials: P
authors.lastname: Yu
authors.forename: Wei-Lun
authors.initials: WL
authors.lastname: Chang
authors.forename: Wen-Ching
authors.initials: WC
authors.lastname: Sun
authors.forename: Wei-Chih
authors.initials: WC
authors.lastname: Hsu