Analysis and optimisation of microcrystalline silicon solar cells with periodic sinusoidal textured interfaces by two-dimensional optical simulations
Analysis and optimisation of microcrystalline silicon solar cells with periodic sinusoidal textured interfaces by two-dimensional optical simulations
复制标题
DOI：
10.1063/1.3115408
复制
发表时间：
2009-04
影响因子：
3.2
通讯作者：
A. Čampa;J. Krč;M. Topič
中科院分区：
文献类型：
--
作者：
A. Čampa;J. Krč;M. Topič
提出了一种模拟具有周期性织构界面的薄膜太阳电池的二维光学模型。该模型基于有限元法，采用三角形离散单元进行结构描述。该模型的优点相比，其他现有的模型突出。经过验证和验证开发的模拟器，模拟的微晶硅太阳能电池与正弦光栅纹理施加到接口进行。以电池最大短路电流密度为目标，对光栅的周期和槽高两个参数进行了分析和优化。与具有平坦界面的电池相比，优化结构的电流密度增加高达45%。确定了周期性织构银背反射器中的光学损耗。
Two-dimensional optical model for simulation of thin-film solar cells with periodical textured interfaces is presented. The model is based on finite element method and uses triangular discrete elements for the structure description. The advantages of the model in comparison to other existing models are highlighted. After validation and verification of the developed simulator, simulations of a microcrystalline silicon solar cell with a sinusoidal grating texture applied to the interfaces are carried out. The analysis and optimization of the two grating parameters—period and height of the grooves—are performed with respect to the maximal short-circuit current density of the cell. Up to 45% increase in the current density is identified for the optimized structure, compared to that of the cell with flat interfaces. Optical losses in the periodically textured silver back reflector are determined.