摘要
钙钛矿太阳能电池作为新型的光伏器件目前获得了广泛的关注,其光电转换效率不断提高。钙钛矿电池的光电转换性能除了和钙钛矿薄膜的光电性能有密切关系之外,还受到器件的结构、界面、光学设计等方面的影响。研究了钙钛矿电池的表面光学特性,在电池表面引入一层减反薄膜,从而降低光线在表面的反射损失,以期提高电池的转换效率。通过研究薄膜微观结构的对透射率的影响,发现具有光栅结构的薄膜能够更好地增加透明导电玻璃的透射率。实验结果表明光栅结构减反膜的引入使得钙钛矿电池的转换效率得到了一定的提升。
Perovskite solar cells have received great attentions as the next-generation photovoltaic device and the power conversion efficiency undergoes a continuous increase. The optoelectric properties of perovskite solar cells not only intimately connects to the perovskite film,but also has a direct connection with the device structure,interface,and the optical design. In this paper,our attention is focused on the surface optical properties. By introducing an antireflection layer on top of perovskite solar cells,it is anticipated to lower the reflection loss at the surface and enhance the power conversion efficiency. After studying the effect of microstructure on the transmittance,it is found that the antireflection layer with grating pattern can further increase the transmittance. Experimental results show that the introduction of antireflection layer can to some extent boost the power conversion efficiency of perovskite solar cells. At last a brief discussion about the involved mechanism of antireflection layer is provided.
作者
袁龙凤
邓楷模
YUAN Long-feng;DENG Kai-mo(School of Physical Science and Technology,Soochow University,Suzhou 215006,China)
出处
《光学与光电技术》
2021年第2期103-107,共5页
Optics & Optoelectronic Technology
基金
国家自然科学基金面上项目(51972218)
苏州大学大学生课外学术科研基金项目(20200062A)资助。
关键词
钙钛矿太阳能电池
光栅
减反膜
光电转换效率
光衍射
perovskite solar cells
grating
antireflection
power conversion efficiency
light diffraction
