公开(公告)号：WO2015095619A1

公开(公告)日：2015-06-25

申请号：PCT/US2014/071318

申请日：2014-12-18

Applicant: SUNPOWER CORPORATION ,  TOTAL MARKETING SERVICES

Inventor： SEWELL, Richard Hamilton ,  BARKHOUSE, David Aaron Randolph ,  WU, Junbo ,  CUDZINOVIC, Michael ,  LOSCUTOFF, Paul ,  BEHNKE, Joseph ,  NGAMO TOKO, Michel Arsène Olivier

IPC: H01L31/0224 ,  H01L31/18

CPC classification number: H01L31/022441 ,  H01L31/02008 ,  H01L31/0682 ,  H01L31/0745 ,  Y02E10/547 ,  Y02P70/521

Abstract: Approaches for the metallization of solar cells and the resulting solar cells are described. In an example, a method of fabricating a solar cell involves forming a barrier layer on a semiconductor region disposed in or above a substrate. The semiconductor region includes monocrystalline or polycrystalline silicon. The method also involves forming a conductive paste layer on the barrier layer. The method also involves forming a conductive layer from the conductive paste layer. The method also involves forming a contact structure for the semiconductor region of the solar cell, the contact structure including at least the conductive layer.

Abstract translation: 描述了用于太阳能电池的金属化和所得到的太阳能电池的方法。 在一个实例中，制造太阳能电池的方法涉及在设置在基板中或上方的半导体区域上形成阻挡层。 半导体区域包括单晶硅或多晶硅。 该方法还涉及在阻挡层上形成导电糊层。 该方法还涉及从导电浆料层形成导电层。 该方法还包括形成用于太阳能电池的半导体区域的接触结构，该接触结构至少包括导电层。

公开(公告)号：WO2014151981A1

公开(公告)日：2014-09-25

申请号：PCT/US2014/026765

申请日：2014-03-13

Applicant: SUNPOWER CORPORATION ,  WESTERBERG, Staffan ,  VICENTE, Florito Dennis ,  CUDZINOVIC, Michael ,  TOMADA, Princess Carmi ,  GUIAO, Jemellee

Inventor： WESTERBERG, Staffan ,  VICENTE, Florito Dennis ,  CUDZINOVIC, Michael ,  TOMADA, Princess Carmi ,  GUIAO, Jemellee

IPC: H01L31/18 ,  H01L31/04

CPC classification number: H01L31/18 ,  H01L31/02167 ,  H01L31/022425 ,  H01L31/186 ,  Y02E10/50 ,  Y02P70/521

Abstract: Methods for protecting a texturized region and a lightly doped diffusion region of a solar cell to improve solar cell lifetime and efficiency are disclosed. In an embodiment, an example method includes providing a solar cell having a front side which faces the sun during normal operation and a back side opposite the front side, a silicon substrate and where the silicon substrate includes a texturized region and a lightly doped diffusion region. The method includes placing the solar cell on a receiving medium with the front side of the solar cell placed on an upper surface of the receiving medium, where the upper surface of the receiving medium prevents damage to the to the lightly doped diffusion region and damage to the texturized region on the front side of the solar cell during a contact printing process or transferring. In an embodiment, the lightly doped diffusion region has a doping concentration below 1x10 19 cm -3 and the receiving medium includes a material having a moh's hardness in the range of 5-10.

Abstract translation: 公开了用于保护太阳能电池的纹理化区域和轻掺杂扩散区域以改善太阳能电池寿命和效率的方法。 在一个实施例中，一种示例性方法包括提供在正常操作期间具有面向太阳的正面和与正面相反的背面的太阳能电池，硅衬底以及硅衬底包括纹理化区域和轻掺杂扩散区域 。 该方法包括将太阳能电池放置在接收介质上，其中太阳能电池的正面放置在接收介质的上表面上，其中接收介质的上表面防止对轻掺杂扩散区的损伤，并损坏 在接触印刷处理或转印期间在太阳能电池的正面上的纹理化区域。 在一个实施例中，轻掺杂扩散区具有低于1×10 19 cm -3的掺杂浓度，并且接收介质包括莫氏硬度在5-10的范围内的材料。

公开(公告)号：WO2014099322A1

公开(公告)日：2014-06-26

申请号：PCT/US2013/072421

申请日：2013-11-27

Applicant: SUNPOWER CORPORATION ,  WU, Junbo ,  JOHNSON, Michael C. ,  CUDZINOVIC, Michael ,  BEHNKE, Joseph ,  ZHU, Xi ,  SMITH, David D. ,  SEWELL, Richard Hamilton ,  TU, Xiuwen ,  RIM, Seung Bum

Inventor： WU, Junbo ,  JOHNSON, Michael C. ,  CUDZINOVIC, Michael ,  ZHU, Xi ,  SMITH, David D. ,  SEWELL, Richard Hamilton ,  TU, Xiuwen ,  RIM, Seung Bum

IPC: H01L31/04 ,  H01L31/18

CPC classification number: H01L31/022425 ,  H01L31/02167 ,  H01L31/022441 ,  H01L31/0682 ,  H01L31/1864 ,  Y02E10/50 ,  Y02E10/547

Abstract: Enhanced adhesion of seed layers for solar cell conductive contacts and methods of forming solar cell conductive contacts are described. For example, a method of fabricating a solar cell includes forming an adhesion layer above an emitter region of a substrate. A metal seed paste layer is formed on the adhesion layer. The metal seed paste layer and the adhesion layer are annealed to form a conductive layer in contact with the emitter region of the substrate. A conductive contact for the solar cell is formed from the conductive layer.

Abstract translation: 描述了用于太阳能电池导电触点的种子层的增强的附着和形成太阳能电池导电触点的方法。 例如，制造太阳能电池的方法包括在基板的发射极区域的上方形成粘附层。 在粘合层上形成金属种子糊层。 将金属种子糊层和粘附层退火以形成与衬底的发射极区域接触的导电层。 用于太阳能电池的导电接触由导电层形成。

公开(公告)号：WO2015048197A1

公开(公告)日：2015-04-02

申请号：PCT/US2014/057311

申请日：2014-09-24

Applicant: SUNPOWER CORPORATION

Inventor： SEWELL, Richard Hamilton ,  CUDZINOVIC, Michael

IPC: H01L31/18 ,  H01L31/04

CPC classification number: H01L31/022425 ,  H01L31/022441 ,  H01L31/18 ,  Y02E10/50

Abstract: Solar cell contact structures formed from metal paste and methods of forming solar cell contact structures from metal paste are described. In a first example, a solar cell includes a substrate. A semiconductor region is disposed in or above the substrate. A contact structure is disposed on the semiconductor region and includes a conductive layer in contact with the semiconductor region. The conductive layer includes a matrix binder having aluminum/silicon (Al/Si) particles and an inert filler material dispersed therein. In a second example, a solar cell includes a substrate. A semiconductor region is disposed in or above the substrate. A contact structure is disposed on the semiconductor region and includes a conductive layer in contact with the semiconductor region. The conductive layer includes an agent for increasing a hydrophobic characteristic of the conductive layer.

Abstract translation: 描述了由金属糊形成的太阳能电池接触结构和从金属糊形成太阳能电池接触结构的方法。 在第一示例中，太阳能电池包括基板。 半导体区域设置在基板中或上方。 接触结构设置在半导体区域上，并且包括与半导体区域接触的导电层。 导电层包括具有铝/硅（Al / Si）颗粒和分散在其中的惰性填料的基质粘合剂。 在第二示例中，太阳能电池包括基板。 半导体区域设置在基板中或上方。 接触结构设置在半导体区域上，并且包括与半导体区域接触的导电层。 导电层包括用于增加导电层的疏水特性的试剂。

公开(公告)号：WO2018005385A1

公开(公告)日：2018-01-04

申请号：PCT/US2017/039333

申请日：2017-06-26

Applicant: SUNPOWER CORPORATION

Inventor： HSIA, Benjamin Ian ,  BARKHOUSE, David Aaron Randolph ,  JOHNSON, Todd Richards ,  CUDZINOVIC, Michael

IPC: H01L31/18 ,  H01L31/0368 ,  H01L31/0236

CPC classification number: H01L31/022441 ,  H01L31/02168 ,  H01L31/02327 ,  H01L31/02363 ,  H01L31/035281 ,  H01L31/0682 ,  H01L31/0745 ,  H01L31/1864 ,  Y02E10/50 ,  Y02E10/547 ,  Y02P70/521

Abstract: Methods of fabricating a solar cell including metallization techniques and resulting solar cells, are described. In an example, a first and second semiconductor regions can be formed in or above a substrate, where a separation region is disposed between the first and second semiconductor regions. A protective region can be formed over the separation region. A first metal layer can be formed over the substrate, where the protective region prevents and/or inhibits damage to the separation region during the formation of the first metal layer. Conductive contacts can be formed over the first and second semiconductor regions.

Abstract translation: 描述了制造包括金属化技术和所得太阳能电池的太阳能电池的方法。 在一个示例中，第一和第二半导体区域可以形成在衬底中或上方，其中分离区域设置在第一和第二半导体区域之间。 保护区域可以在分离区域上形成。 第一金属层可以形成在衬底上，其中保护区域在形成第一金属层期间防止和/或抑制对分离区域的损害。 导电触点可以形成在第一和第二半导体区域上。

公开(公告)号：WO2015095620A1

公开(公告)日：2015-06-25

申请号：PCT/US2014/071320

申请日：2014-12-18

Applicant: SUNPOWER CORPORATION

Inventor： AGRAWAL, Mukul ,  RIM, Seung ,  CUDZINOVIC, Michael

IPC: H01L31/0224 ,  H01L31/18

CPC classification number: H01L31/02008 ,  H01L31/022441 ,  H01L31/03682 ,  H01L31/0682 ,  H01L31/0745 ,  H01L31/0747 ,  Y02E10/547

Abstract: Approaches for forming barrier-less seed stacks and contacts are described. In an example, a solar cell includes a substrate and a conductive contact disposed on the substrate. The conductive contact includes a copper layer directly contacting the substrate. In another example, a solar cell includes a substrate and a seed layer disposed directly on the substrate. The seed layer consists essentially of one or more non-diffusion-barrier metal layers. A conductive contact includes a copper layer disposed directly on the seed layer. An exemplary method of fabricating a solar cell involves providing a substrate, and forming a seed layer over the substrate. The seed layer includes one or more non-diffusion-barrier metal layers. The method further involves forming a conductive contact for the solar cell from the seed layer.

Abstract translation: 描述了形成无障碍种子堆叠和接触的方法。 在一个示例中，太阳能电池包括设置在基板上的基板和导电触头。 导电接触包括直接接触基底的铜层。 在另一示例中，太阳能电池包括基板和直接设置在基板上的籽晶层。 种子层基本上由一个或多个非扩散阻挡金属层组成。 导电接触包括直接设置在籽晶层上的铜层。 制造太阳能电池的示例性方法包括提供衬底，并在衬底上形成晶种层。 种子层包括一个或多个非扩散阻挡金属层。 该方法还包括从种子层形成用于太阳能电池的导电接触。