Achievement of More Than 25% Conversion Efficiency With Crystalline Silicon Heterojunction Solar Cell
Achievement of More Than 25% Conversion Efficiency With Crystalline Silicon Heterojunction Solar Cell
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DOI：
10.1109/jphotov.2014.2352151
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发表时间：
2014-11-01
影响因子：
3
通讯作者：
Okamoto, Shingo
中科院分区：
文献类型：
--
作者：
Masuko, Keiichiro;Shigematsu, Masato;Okamoto, Shingo
Panasonic的HIT光伏模块采用的晶体硅异质结结构显著降低了复合损耗，从而提高了转换效率。我们的晶体硅异质结太阳能电池采用叉指背接触的结构，以减少来自前栅极电极、透明导电氧化物（TCO）层和a-Si：H层的光损耗，作为超过25%的转换效率的方法。由于短路电流（J（sc））的提高，我们在1个太阳光照下（指定面积：143.7 cm（2））实现了世界上最高的晶体硅基太阳能电池效率25.6%。
The crystalline silicon heterojunction structure adopted in photovoltaic modules commercialized as Panasonic's HIT has significantly reduced recombination loss, resulting in greater conversion efficiency. The structure of an interdigitated back contact was adopted with our crystalline silicon heterojunction solar cells to reduce optical loss from a front grid electrode, a transparent conducting oxide (TCO) layer, and a-Si: H layers as an approach for exceeding the conversion efficiency of 25%. As a result of the improved short-circuit current (J(sc)), we achieved the world's highest efficiency of 25.6% for crystalline silicon-based solar cells under 1-sun illumination (designated area: 143.7 cm(2)).