title: A comparison of light-harvesting performance of silicon nanocones and nanowires for radial-junction solar cells.
abstract: Silicon nanorod based radial-junction solar cells are competitive alternatives to traditional planar silicon solar cells. In various silicon nanorods, nanocone is always considered to be better than nanowire in light-absorption. Nevertheless, we find that this notion isn't absolutely correct. Silicon nanocone is indeed significantly superior over nanowire in light-concentration due to its continuous diameters, and thus resonant wavelengths excited. However, the concentrated light can't be effectively absorbed and converted to photogenerated carriers, since its propagation path in silicon nanocone is shorter than that in nanowire. The results provide critical clues for the design of silicon nanorod based radial-junction solar cells.
authors.affiliation: State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China.
authors.forename: Yingfeng
authors.initials: Y
authors.lastname: Li
authors.affiliation: State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China.|Chongqing Materials Research Institute, Chongqing, 400707, China.
authors.forename: Meicheng
authors.initials: M
authors.lastname: Li
authors.affiliation: State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China.
authors.forename: Pengfei
authors.initials: P
authors.lastname: Fu
authors.affiliation: State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China.
authors.forename: Ruike
authors.initials: R
authors.lastname: Li
authors.affiliation: State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China.
authors.forename: Dandan
authors.initials: D
authors.lastname: Song
authors.affiliation: Chongqing Materials Research Institute, Chongqing, 400707, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Shen
authors.affiliation: Chongqing Materials Research Institute, Chongqing, 400707, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhao