公开(公告)号：US20140332069A1

公开(公告)日：2014-11-13

申请号：US14358138

申请日：2012-10-16

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Tai Hong Yim ,  Heung Yeol Lee ,  Min Su Lee ,  Yoon Ho Han

IPC: H01L31/0236 ,  C25D1/00 ,  G02B5/18

CPC classification number: H01L31/02366 ,  C25D1/00 ,  C25D1/003 ,  G02B5/021 ,  H01L31/03926 ,  Y02E10/50 ,  Y10T428/1241

Abstract: The present invention relates to a controlled expansion flexible metal substrate material and to a production method therefor. In the present invention, an electrocasting method is used in order to produce a metal substrate material which comprises a controlled expansion alloy and has a textured structure and a wide width. Also, the flexible metal substrate material of the present invention can be used as the substrate for a silicon thin-film solar cell since the Fe—Ni alloying compositional ratio is controlled in such a way that the thermal expansion coefficient approximates that of silicon. The present invention is devised in such a way that the optical pathway is extended and the photoelectric conversion efficiency is improved since a textured structure is provided on the surface of a flexible metal substrate material by forming a textured structure on the surface of a plating drum used as a plating cathode or anode used in an electrocasting method.

Abstract translation: 本发明涉及受控膨胀柔性金属基板材料及其制造方法。 在本发明中，为了制造包含受控膨胀合金并具有纹理结构和宽宽度的金属基材，使用电铸方法。 另外，本发明的柔性金属基板材料可以用作硅薄膜太阳能电池的基板，因为Fe-Ni合金组成比被控制成热膨胀系数接近硅的热膨胀系数。 本发明的设计是这样一种方式使光路延伸，光电转换效率提高，因为在柔性金属基片材料的表面上形成有纹理的结构，通过在所用镀层滚筒的表面上形成纹理结构 作为用于电铸方法的电镀阴极或阳极。