Optical absorption enhancement in a Si nanohole structure with hexagonal unit cell for solar cell application

Hong, Lei1,2; Rusli1; Wang, Xincai2; Zheng, Hongyu2; Wang, Jianxiong1; Wang, Hao1; Yu, Hongyu3

2014-10-17

10.1088/0957-4484/25/41/415303

NANOTECHNOLOGY   影响因子和分区

0957-4484

1361-6528

Periodic hexagonal unit cell silicon nanohole (SiNH) structures with different structural dimensions have been fabricated using polystyrene spheres and investigated in terms of their microstructures and optical reflectance. Compared with a planar Si wafer, such structures exhibit much lower reflectance due to the enhanced scattering introduced by the SiNHs. Optical simulation using the finite element method has also been carried out in order to optimize the structural periodicity and hole diameter for maximum light absorption. The optimum structure is found to have a periodicity of 693 nm and hole diameter of 560 nm, and it yields the highest ultimate efficiency of 28.8%.

solar cell nanohole hexagonal unit cell

SCI ; EI

英语

其他

Ministry of Education[]

Science & Technology - Other Topics ; Materials Science ; Physics

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied

WOS:000342580300006

IOP PUBLISHING LTD

20144100082702

Light absorption ; Reflection ; Silicon compounds ; Silicon solar cells ; Silicon wafers ; Solar cells ; Structural optimization

Solar Cells:702.3 ; Semiconductor Devices and Integrated Circuits:714.2 ; Light/Optics:741.1 ; Optimization Techniques:921.5

MATERIALS SCIENCE

Web of Science

1.Nanyang Technol Univ, Novitas, Nanoelect Ctr Excellence, Sch Elect & Elect Engn, Singapore 639798, Singapore
2.ASTAR, Singapore Inst Mfg Technol, Singapore, Singapore
3.South Univ Sci & Technol China, Shenzhen, Peoples R China

Hong, Lei,Rusli,Wang, Xincai,et al. Optical absorption enhancement in a Si nanohole structure with hexagonal unit cell for solar cell application[J]. NANOTECHNOLOGY,2014,25(41).

Hong, Lei.,Rusli.,Wang, Xincai.,Zheng, Hongyu.,Wang, Jianxiong.,...&Yu, Hongyu.(2014).Optical absorption enhancement in a Si nanohole structure with hexagonal unit cell for solar cell application.NANOTECHNOLOGY,25(41).

Hong, Lei,et al."Optical absorption enhancement in a Si nanohole structure with hexagonal unit cell for solar cell application".NANOTECHNOLOGY 25.41(2014).