Performance enhancement of multicrystalline silicon solar cells and modules using double-layered SiNx: H antireflection coatings
Performance enhancement of multicrystalline silicon solar cells and modules using double-layered SiNx: H antireflection coatings
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使用双层SiNx:H增透膜增强多晶硅太阳能电池和组件的性能
DOI：
10.1002/pip.2623
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发表时间：
2015
影响因子：
6.7
通讯作者：
Sun Jie
中科院分区：
文献类型：
--
作者：
Du Guoping;Zhang Yu;Li Wang;Chen Nan;Liu Bingfa;Sun Jie
通过等离子体增强化学气相沉积方法沉积的氮化硅涂层是用于晶体硅太阳能电池的最广泛使用的氮化硅涂层。在这项工作中，我们采用双层氮化硅涂层，由具有较低折射率的顶层和具有较高折射率的底层（接触硅片）组成，用于多晶硅太阳能电池。提出了一种优化封装太阳能电池或组件光伏性能的方法。仔细分析了它们的光伏特性与氮化硅涂层厚度的依赖关系。计算双层涂层的各个氮化硅层的期望厚度。为了得到统计结论，我们使用标准生产线制造了大量的多晶硅太阳能电池，用于双层和单层双金属涂层类型。在电池水平上，双层氮化硅陶瓷涂层导致平均转换效率绝对增加0.21%，平均开路电压和短路电流密度分别增加1.8 mV和0.11 mA/cm 2。在模块水平上，分析了电池到模块的功率传递因子，并且证明了双层氮化硅涂层比单层氮化硅涂层在多晶硅太阳能电池模块的光伏性能方面提供了一致的增强。版权所有© 2015约翰威利父子有限公司.
Silicon nitride coating deposited by the plasma‐enhanced chemical vapor deposition method is the most widely used antireflection coating for crystalline silicon solar cells. In this work, we employed double‐layered silicon nitride coating consisting of a top layer with a lower refractive index and a bottom layer (contacting the silicon wafer) with a higher refractive index for multicrystalline silicon solar cells. An optimization procedure was presented for maximizing the photovoltaic performance of the encapsulated solar cells or modules. The dependence of their photovoltaic properties on the thickness of silicon nitride coatings was carefully analyzed. Desirable thicknesses of the individual silicon nitride layers for the double‐layered coatings were calculated. In order to get statistical conclusions, we fabricated a large number of multicrystalline silicon solar cells using the standard production line for both the double‐layered and single‐layered antireflection coating types. On the cell level, the double‐layered silicon nitride antireflection coating resulted in an increase of 0.21%, absolute for the average conversion efficiency, and 1.8 mV and 0.11 mA/cm2for the average open‐circuit voltage and short‐circuit current density, respectively. On the module level, the cell to module power transfer factor was analyzed, and it was demonstrated that the double‐layered silicon nitride antireflection coating provided a consistent enhancement in the photovoltaic performance for multicrystalline silicon solar cell modules than the single‐layered silicon nitride coating. Copyright © 2015 John Wiley & Sons, Ltd.