title: Hybrid solar cells based on P3HT and Si@MWCNT nanocomposite.
abstract: A nanocomposite material (Si@MWCNT) with a core/sheath heterostructure consisting of silicon nanoparticles (Si-NPs) covalently bonded onto a multi-walled carbon nanotube (MWCNT) is used as a new material for solar cells. The photovoltaic response of a poly (3-hexylthiophene) (P3HT)/Si@MWCNT hybrid film is studied by I-V measurements under simulated one-sun AM 1.5 illumination (100 mW cm(-2)). In comparison with simple P3HT/Si-NPs and P3HT/MWCNT devices, the power conversion efficiency of the (P3HT)/Si@MWCNT nano-hybrid device is enhanced by 3 and 20 times, respectively. Photo-physical and energy diagram investigations suggest that the improved device performance is attributed to the combination of efficient charge generation by the P3HT/Si-NPs bulk heterojunction and efficient charge collection as a result of MWCNT template directed carrier transport.
authors.affiliation: State Key Laboratory of Silicon Materials, MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, People's Republic of China.
authors.forename: Lin
authors.initials: L
authors.lastname: Chen
authors.forename: Xiaowei
authors.initials: X
authors.lastname: Pan
authors.forename: Dingxiang
authors.initials: D
authors.lastname: Zheng
authors.forename: Yan
authors.initials: Y
authors.lastname: Gao
authors.forename: Xiaoxia
authors.initials: X
authors.lastname: Jiang
authors.forename: Mingsheng
authors.initials: M
authors.lastname: Xu
authors.forename: Hongzheng
authors.initials: H
authors.lastname: Chen