Altinoluk Serra, Kumar Naveen, Ciftpinar Emine Hande, Demircioglu O, Turan Rasit, Vasileska Dragica
Department of Electrical and Electronics Engineering Mugla Sitki Kocman University Kotekli Mugla 48000 Turkey.
Center for Solar Energy Research and Applications (GUNAM) Middle East Technical University Cankaya Ankara 06800 Turkey.
Glob Chall. 2020 Jun 4;4(9):1900105. doi: 10.1002/gch2.201900105. eCollection 2020 Sep.
Surface texturing is an indispensable way of increasing absorption in solar cells. In order to properly characterize the effect of texturing, the angular dependence of the incidence light should be addressed. This is particularly important when the actual application where the incidence angle of the sunlight varies during the day is considered. This study presents the angular dependence of solar cell parameters in the case of periodically textured crystalline silicon (c-Si) solar cells with microholes. A standard solar cell with pyramid texturing is also studied for comparison. It is shown that the incidence angle for the highest efficiency depends on the surface structure. While a standard pyramid-textured surface performs best at the zero angle of incidence, it is needed to tilt the sample with microholes textures 15° with respect to the surface normal. This is also confirmed by the simulation study performed for the structures presented in this study.
表面纹理化是提高太阳能电池吸收率的一种不可或缺的方法。为了恰当地表征纹理化的效果，应考虑入射光的角度依赖性。当考虑到实际应用中太阳光的入射角在一天中会发生变化时，这一点尤为重要。本研究展示了具有微孔的周期性纹理化晶体硅（c-Si）太阳能电池情况下太阳能电池参数的角度依赖性。还研究了具有金字塔纹理的标准太阳能电池以作比较。结果表明，实现最高效率的入射角取决于表面结构。虽然标准的金字塔纹理化表面在入射角为零时性能最佳，但对于具有微孔纹理的样品，需要使其相对于表面法线倾斜15°。本研究中对所呈现结构进行的模拟研究也证实了这一点。
