摘要
设计了一种带有Ag纳米蛾膜结构阵列的薄膜硅太阳能电池背反射器。采用时域有限差分(FDTD)法,系统仿真研究了Ag纳米蛾膜阵列的底部直径、高度、阵列周期常数对薄膜硅太阳能电池光吸收的影响。仿真结果表明,Ag纳米蛾膜结构最佳结构参数为:d=60 nm,a=120 nm,h=100 nm。吸收光谱表明带有Ag纳米蛾膜结构的薄膜硅太阳能电池可有效增加700～1200 nm波段范围的光,同带有Ag层的薄膜硅太阳能电池相比,光吸收平均增强53.8%,这是因为Si/Ag界面产生表面等离子体共振现象所致。
In this paper,a new back reflector with Ag nano moth-eye structure array for thin film silicon solar cells was proposed. Influence of Ag nano moth-eye structure array ’s bottom diameter,height,constant of periodic array to light absorption for thin film silicon solar cells were systemly simulated by finite-difference time-domain（FDTD） method. The simulation results show that,the optimal structure parameters of Ag nano moth-eye array are d = 60 nm,a = 120 nm,h = 100 nm. The absorption spectra show that thin film silicon solar cell with Ag nano moth-eye structure array can effectively increase the light absorption in the wavelength ranging from 700 nm to 1200 nm,compared with thin film silicon solar cell with a Ag layer,the light absorption enhancement is 53. 8% on average,due to Si /Ag interface generated the surface plasmon resonance phenomenon.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2014年第7期1798-1801,1808,共5页
Journal of Synthetic Crystals
基金
国家自然科学基金(61274064)
