Fabrication and analysis of thin-film GaAs solar cell on flexible thermoplastic substrate using a low-pressure cold-welding
Fabrication and analysis of thin-film GaAs solar cell on flexible thermoplastic substrate using a low-pressure cold-welding
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DOI：
10.1016/j.cap.2015.06.026
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发表时间：
2015-11-01
影响因子：
2.4
通讯作者：
Lee, Y. T.
中科院分区：
文献类型：
--
作者：
Lee, Y. H.;Park, K. W.;Lee, Y. T.
我们提出了灵活的薄膜GaAs太阳能电池制造的热塑性基板上的低压冷焊和外延剥离过程。使用聚对苯二甲酸乙二醇酯（PET）薄膜作为柔性基板，由于其热塑性特性，可以在非常低的机械压力（0.4 MPa）下在薄膜GaAs太阳能电池和PET薄膜之间冷焊（130 ℃）金层。通过在PET膜上制作GaAs单结太阳能电池（没有镀膜）证明了该技术的可行性，其效率为13.2%。所制造的太阳能电池在2000次弯曲循环后也显示出稳定的性能。(C)2015 Elsevier B.V.版权所有。
We present flexible thin-film GaAs solar cells fabricated on thermoplastic substrates by a low-pressure cold-welding and epitaxial lift-off process. The use of polyethylene terephthalate (PET) film as a flexible substrate enables cold welding (130 degrees C) of gold layers between a thin-film GaAs solar cell and PET film with very low mechanical pressure (0.4 MPa), due to their thermoplastic properties. The feasibility of the proposed technique was demonstrated by fabricating GaAs single junction solar cells (without antireflection coating) on PET film, having an efficiency of 13.2%. The fabricated solar cell also showed a stable performance after 2000 cycles of bending. (C) 2015 Elsevier B.V. All rights reserved.