Novel high-efficiency crystalline-silicon-based compound heterojunction solar cells: HCT (heterojunction with compound thin-layer).
Novel high-efficiency crystalline-silicon-based compound heterojunction solar cells: HCT (heterojunction with compound thin-layer).
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DOI：
10.1039/c4cp00668b
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发表时间：
2014-07
期刊：
影响因子：
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通讯作者：
Yiming Liu;Yun Sun;Wei Liu;J. Yao
中科院分区：
文献类型：
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作者：
Yiming Liu;Yun Sun;Wei Liu;J. Yao
非晶硅（a-Si：H）/晶体硅（c-Si）异质结结构的异质结本征薄层（HIT）太阳电池已成为最有前途的c-Si基太阳电池技术之一。通过用合适的化合物半导体替代a-Si：H薄膜，我们提出了新的异质结结构，使c-Si异质结太阳能电池具有比HIT太阳能电池更高的功率转换效率。本文提出了几种有希望的异质结候选材料和异质结结构，并将这种新型c-Si化合物异质结太阳电池命名为HCT（Heterojunction with a compound thin layer）。通过理论分析，进一步研究了这些新型HCT结构的特性，模拟结果表明了器件性能的改善。最后，本文提出了实现高效率HCT太阳电池的化合物选择标准和要点，为真实的器件实现提供了指导。
With an amorphous silicon (a-Si:H)/crystalline silicon (c-Si) heterojunction structure, the heterojunction with intrinsic thin-layer (HIT) solar cell has become one of the most promising technologies for c-Si based solar cells. By replacing a-Si:H thin films with appropriate compound semiconductors, we propose novel heterojunction structures which allow c-Si heterojunction solar cells to possess higher power conversion efficiencies than HIT solar cells. Several promising heterojunction candidates and hetero-structures have been proposed in this work, and this kind of novel c-Si compound heterojunction solar cell is denominated HCT (heterojunction with a compound thin-layer). The feasibilities of these novel HCT structures are further investigated by theoretical approaches, and the modeling results demonstrate the device performance improvement. Finally, this paper proclaims the compound selection standards and essentials of achieving high-efficiency HCT solar cells, which are guidelines for the real device implementation.