title: Radial n-i-p structure SiNW-based microcrystalline silicon thin-film solar cells on flexible stainless steel.
abstract: Radial n-i-p structure silicon nanowire (SiNW)-based microcrystalline silicon thin-film solar cells on stainless steel foil was fabricated by plasma-enhanced chemical vapor deposition. The SiNW solar cell displays very low optical reflectance (approximately 15% on average) over a broad range of wavelengths (400 to 1,100 nm). The initial SiNW-based microcrystalline (μc-Si:H) thin-film solar cell has an open-circuit voltage of 0.37 V, short-circuit current density of 13.36 mA/cm2, fill factor of 0.3, and conversion efficiency of 1.48%. After acid treatment, the performance of the modified SiNW-based μc-Si:H thin-film solar cell has been improved remarkably with an open-circuit voltage of 0.48 V, short-circuit current density of 13.42 mA/cm2, fill factor of 0.35, and conversion efficiency of 2.25%. The external quantum efficiency measurements show that the external quantum efficiency response of SiNW solar cells is improved greatly in the wavelength range of 630 to 900 nm compared to the corresponding planar film solar cells.
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China. xbxie@semi.ac.cn.
authors.forename: Xiaobing
authors.initials: X
authors.lastname: Xie
authors.forename: Xiangbo
authors.initials: X
authors.lastname: Zeng
authors.forename: Ping
authors.initials: P
authors.lastname: Yang
authors.forename: Hao
authors.initials: H
authors.lastname: Li
authors.forename: Jingyan
authors.initials: J
authors.lastname: Li
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Zhang
authors.forename: Qiming
authors.initials: Q
authors.lastname: Wang