Another line of research is to explore the use of photovoltaic (solar cell) materials other than silicon - such as iron oxide, which might be even cheaper to produce.
研究的另一个方向是挖掘光电池的潜在利用价值，比如制造成本更低的氧化铁。
Then expect that the pyrite is a possible substitute of the Silicon as the cardinal photovoltaic semiconductor material to prepare for the solar cell.
并预期在制备太阳电池时，它可能代替硅，而成为今后主要的光伏半导体材料。
As the power efficiency of traditional silicon-based solar cell is low and also it costs high, concentrator photovoltaic systems with high conversion efficiency will become the main direction.
由于传统的硅基太阳能电池发电效率低、成本高，因此高转换效率的聚光太阳能系统将成为研究太阳能发电的主要方向。
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