科研之友
微信
新浪微博
Facebook
分享链接
摘要
Diffractive light trapping in 1.5 mu m thick crystal silicon films is studied experimentally through hemispherical reflection measurements and theoretically through rigorous coupled-wave analysis modeling. The gratings were fabricated by nanoimprinting of dielectric precursor films. The model data, which match the experimental results well without the use of any fitting parameters, are used to extract the light trapping efficiency. Diffractive light trapping is studied as a function of incidence angle, and an enhancement of light absorption is found for incidence angles up to 50 for both TE and TM polarizations.
- 出版日期2011-10-10
