公开(公告)号：WO2017106212A1

公开(公告)日：2017-06-22

申请号：PCT/US2016/066418

申请日：2016-12-13

Applicant: SUNPOWER CORPORATION ,  TOTAL MARKETING SERVICES

Inventor： KIM, Taeseok ,  WOEHL, Robert ,  HARLEY, Gabriel ,  HARDER, Nils-Peter ,  MOSCHNER, Jens-Dirk ,  MOORS, Matthieu ,  NGAMO TOKO, Michel Arsene

IPC: H01L31/18 ,  H01L31/0392 ,  H01L31/0236 ,  H01L31/036

CPC classification number: H01L31/022458 ,  H01L31/022441 ,  H01L31/02366 ,  H01L31/028 ,  H01L31/035281 ,  H01L31/03682 ,  H01L31/05 ,  H01L31/0516 ,  H01L31/0547 ,  H01L31/056 ,  H01L31/0745 ,  H01L31/077 ,  H01L31/1804 ,  H01L31/182 ,  Y02E10/50

Abstract: Methods of fabricating solar cells using a metal-containing thermal and diffusion barrier layer in foil-based metallization approaches, and the resulting solar cells, are described. For example, a method of fabricating a solar cell includes forming a plurality of semiconductor regions in or above a substrate. The method also includes forming a metal-containing thermal and diffusion barrier layer above the plurality of semiconductor regions. The method also includes forming a metal seed layer on the metal-containing thermal and diffusion barrier layer. The method also includes forming a metal conductor layer on the metal seed layer. The method also includes laser welding the metal conductor layer to the metal seed layer. The metal-containing thermal and diffusion barrier layer protects the plurality of semiconductor regions during the laser welding.

Abstract translation: 描述了在基于箔的金属化方法中使用含金属的热阻挡层和扩散阻挡层来制造太阳能电池的方法，以及所得的太阳能电池。 例如，制造太阳能电池的方法包括在衬底中或上方形成多个半导体区域。 该方法还包括在多个半导体区域上方形成含金属的热阻挡层和扩散阻挡层。 该方法还包括在含金属的热和扩散阻挡层上形成金属种子层。 该方法还包括在金属种子层上形成金属导体层。 该方法还包括将金属导体层激光焊接到金属种子层。 含金属的热扩散阻挡层在激光焊接期间保护多个半导体区域。

公开(公告)号：WO2015148573A1

公开(公告)日：2015-10-01

申请号：PCT/US2015/022336

申请日：2015-03-24

Applicant: SUNPOWER CORPORATION ,  TOTAL MARKETING SERVICES

Inventor： HARLEY, Gabriel ,  TAESEOK, Kim ,  SEWELL, Richard, Hamilton ,  MORSE, Michael ,  SMITH, David, D. ,  MOORS, Matthieu ,  MOSCHNER, Jens-Dirk

IPC: H01L31/04 ,  H01L31/0216 ,  H01L31/18

CPC classification number: H01L31/02245 ,  H01L31/022441 ,  H01L31/02363 ,  H01L31/028 ,  H01L31/0475 ,  H01L31/0512 ,  H01L31/0516 ,  H01L31/0682 ,  H01L31/0745 ,  Y02E10/50 ,  Y02E10/547 ,  Y02P70/521

Abstract: Approaches for the foil-based metallization of solar cells and the resulting solar cells are described. In an example, a solar cell includes a substrate. A plurality of alternating N-type and P-type semiconductor regions is disposed in or above the substrate. A conductive contact structure is disposed above the plurality of alternating N-type and P-type semiconductor regions. The conductive contact structure includes a plurality of metal seed material regions providing a metal seed material region disposed on each of the alternating N-type and P-type semiconductor regions. A metal foil is disposed on the plurality of metal seed material regions, the metal foil having anodized portions isolating metal regions of the metal foil corresponding to the alternating N-type and P-type semiconductor regions.

Abstract translation: 描述了用于太阳能电池和所得太阳能电池的箔基金属化的方法。 在一个示例中，太阳能电池包括基板。 多个交替的N型和P型半导体区域设置在衬底中或上方。 导电接触结构设置在多个交替的N型和P型半导体区域的上方。 导电接触结构包括多个金属种子材料区域，其提供设置在每个交替的N型和P型半导体区域上的金属种子材料区域。 金属箔设置在多个金属种子材料区域上，金属箔具有阳极化部分，隔离与交替的N型和P型半导体区对应的金属箔的金属区域。