Simulation and experimental study of a novel bifacial structure of silicon heterojunction solar cell for high efficiency and low cost
Simulation and experimental study of a novel bifacial structure of silicon heterojunction solar cell for high efficiency and low cost
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新型硅异质结太阳能电池双面结构的高效低成本模拟与实验研究
DOI：
10.1088/1674-1056/27/3/038502
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发表时间：
2018-03
影响因子：
1.7
通讯作者：
Liu Renzhong
中科院分区：
文献类型：
--
作者：
Huang Haibin;Tian Gangyu;Zhou Lang;Yuan Jiren;Wolfgang R. Fahrner;Zhang Wenbin;Li Xingbing;Chen Wenhao;Liu Renzhong
为了提高双面非晶硅/晶体硅基太阳电池的效率，降低背面材料消耗和生产成本，设计了一种新型结构Ag grid/SiNx/n+-c-Si/n-c-Si/i-a-Si：H/p+-a-Si：H/TCO/Ag grid。模拟结果表明，与典型的双面非晶硅/晶体硅基太阳能电池相比，新结构在保持高开路电压、低温度系数和良好弱光性能的同时，由于短路电流（Jsc）的增加，获得了更高的效率。采用基于工业化生产的特殊工艺制备了由该新型结构组成的真实的电池，其尺寸为75 mm ×75 mm。在没有参数优化的情况下，电池效率达到21.1%，Jsc为41.7 mA/cm 2。此外，该新结构在AM 1.5 G，100 mW/cm 2的光照下获得了28.55%的潜在转换效率。Ag栅/SiNx/n+-c-Si/n-c-Si/i-a-Si：H/p+-a-Si：H/TCO/Ag栅结构是一种具有高效率和低成本的结构。
A novel structure of Ag grid/SiNx/n+-c-Si/n-c-Si/i-a-Si:H/p+-a-Si:H/TCO/Ag grid was designed to increase the efficiency of bifacial amorphous/crystalline silicon-based solar cells and reduce the rear material consumption and production cost. The simulation results show that the new structure obtains higher efficiency compared with the typical bifacial amorphous/crystalline silicon-based solar cell because of an increase in the short-circuit current (Jsc), while retaining the advantages of a high open-circuit voltage, low temperature coefficient, and good weak-light performance. Moreover, real cells composed of the novel structure with dimensions of 75 mm ×75 mm were fabricated by a special fabrication recipe based on industrial processes. Without parameter optimization, the cell efficiency reached 21.1% with the Jsc of 41.7 mA/cm2. In addition, the novel structure attained 28.55% potential conversion efficiency under an illumination of AM 1.5 G, 100 mW/cm2. We conclude that the configuration of the Ag grid/SiNx/n+-c-Si/n-c-Si/i-a-Si:H/p+-a-Si:H/TCO/Ag grid is a promising structure for high efficiency and low cost.
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影响因子：
2.9
作者：
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通讯作者：
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影响因子：
6.9
作者：
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通讯作者：
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影响因子：
56.7
作者：
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通讯作者：
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