Chang Hyo Sik, Jung Hyun-Chul
Engineering Ceramic Center, Korea Institute of Ceramic Engineering and Technology, Icheon 467-843, Korea.
J Nanosci Nanotechnol. 2011 Apr;11(4):3680-3. doi: 10.1166/jnn.2011.4161.
The effect of two-step surface treatment on monocrystalline silicon solar cells was investigated. We changed the nanostructure on pyramidal surfaces by wet nano-texturing so that less light is reflected. The two-step nano-texturing process reduces the average reflectance to about 4% in the 300-1100 nm wavelength region. The use of an antireflection coating resulted in an effective reflectance of 1%. We found that the reflectance obtained by wet nano-texturing was lower than that obtained by conventional alkaline texturing. Thus, we can expect a further increase in the efficiency of silicon solar cells with two-step nano-texturing by a wet chemical process.
研究了两步表面处理对单晶硅太阳能电池的影响。我们通过湿法纳米纹理化改变了金字塔形表面的纳米结构，从而减少了光反射。两步纳米纹理化工艺在300 - 1100纳米波长范围内将平均反射率降低到约4%。使用抗反射涂层后有效反射率为1%。我们发现，湿法纳米纹理化获得的反射率低于传统碱性纹理化获得的反射率。因此，我们可以预期通过湿化学工艺进行两步纳米纹理化会进一步提高硅太阳能电池的效率。
