Feasibility study of two-terminal tandem solar cells integrated with smart stack, areal current matching, and low concentration

作者：Baba Masaaki; Makita Kikuo; Mizuno Hidenori; Takato Hidetaka; Sugaya Takeyoshi; Yamada Noboru^*

来源：Progress in Photovoltaics: Research and Applications , 2017, 25(3): 255-263.

DOI：10.1002/pip.2856

• multi-junction solar cells
• III-V solar cells
• silicon solar cells
• mechanical stack
• areal current matching
• concentrator photovoltaic

The "SMAC module" is a low-cost, high-efficiency photovoltaic module that integrates three techniques: a "SMart stack," "Areal current matching,"and "solar Concentration." This paper presents the result of a proof-of-concept study of the SMAC module conducted using device simulations and indoor experiments. The simulation results show that an SMAC module with a two-terminal GaAs/Si tandem solar cell can achieve an efficiency of approximately 30% and superior electricity generation per unit top cell area. The performance of the GaAs/Si solar cell developed in this study is similar to that of a GaAs/InGaAsP solar cell under concentrated artificial sunlight and is consistent with the simulation results.

• 出版日期2017-3