摘要
基于非晶硅太阳电池的工作原理,对其减反射膜进行研究.根据四分之一波长作用原理得到反射率最小时的厚度优化参数.单层减反射膜选用ITO(n=2.0,d=75 nm),加权平均反射率为5.91%.双层膜选用MgF2/ITO,厚度分别为111nm和75 nm,加权平均反射率为3.72%.此外,还作出反射率随波长的变化曲线,并通过计算仿真结果进行比较说明如何选材:对于单层减反射膜,采用折射率小的材料能取得更好的效果,而对于双层减反射膜,采用折射率上低下高形式,能取得更好的效果.
The anti-reflection coating is researched theoretically based on the principle of the amorphous sili- con solar cell. Following the quarter-wavelength action principle, the optimized thickness parameters can be ob- tained by computing the minimal reflectivity of the anti-reflection coatings. The single-layer anti-reflection coating adopts ITO（ n = 2.0, d = 75 nm） with the weighted average reflectance of 5.91% ; the double-layer anti-re- flection coating uses MgF2/ITO with the thickness of 111 nm and 75 nm, and the weighted average reflectance of 3.72%. In addition, the variation curve of reflectivity with the wavelength is put forward to explain how to select materials according to the results calculated by the computer program： as for single-layer anti-reflection coatings, the materials with a small refractive index can achieve good results, and for the double-layer anti-re- flection coatings, the materials with the low（up）/high（down） form of refractive index can get better effect.
出处
《光电技术应用》
2010年第1期41-44,共4页
Electro-Optic Technology Application
基金
安徽省自然科学基金(090412038)
关键词
非晶硅
减反射膜
反射率
amorphous silicon
anti-reflection coating
reflectivity
