Structures and methods for high-efficiency pyramidal three-dimensional solar cells
    42.
    发明授权
    Structures and methods for high-efficiency pyramidal three-dimensional solar cells 有权
    高效金字塔三维太阳能电池的结构与方法

    公开(公告)号:US09595622B2

    公开(公告)日:2017-03-14

    申请号:US14601123

    申请日:2015-01-20

    Applicant: Solexel, Inc.

    Abstract: The present disclosure enables high-volume cost effective production of three-dimensional thin film solar cell (3-D TFSC) substrates. Pyramid-like unit cell structures 16 and 50 enable epitaxial growth through an open pyramidal structure 3-D TFSC embodiments 70, 82, 100, and 110 may be combined as necessary. A basic 3-D TFSC having a substrate, emitter, oxidation on the emitter, and front and back metal contacts allows for simple processing. Other embodiments disclose a selective emitter, selective backside metal contacts, and front-side SiN ARC layers. Several processing methods, including process flows 150, 200, 250, 300, and 350, enable production of these 3-D TFSCs.

    Abstract translation: 本公开使得能够大量成本有效地生产三维薄膜太阳能电池(3-D TFSC)基板。 金字塔状晶胞结构16和50能够通过开放的金字塔结构进行外延生长3-D TFSC实施例70,82,100和110可以根据需要组合。 具有基板,发射极,发射极上的氧化物以及前后金属触点的基本3-D TFSC允许简单的处理。 其他实施例公开了选择性发射极,选择性背面金属触点和前侧SiN ARC层。 包括工艺流程150,200,250,300和350在内的几种加工方法使得能够生产这些3-D TFSC。

    MONOLITHIC SOLAR CELL ARRAYS AND FABRICATION METHODS
    48.
    发明申请
    MONOLITHIC SOLAR CELL ARRAYS AND FABRICATION METHODS 审中-公开
    单晶太阳能电池阵列和制造方法

    公开(公告)号:US20150207002A1

    公开(公告)日:2015-07-23

    申请号:US14475566

    申请日:2014-09-02

    Applicant: Solexel, Inc.

    Abstract: Solar cell array solutions including monolithic solar cell arrays and fabrication methods. A first patterned cell metallization contacts base and emitter regions of each of a plurality of solar cells having a light receiving frontside and a backside. An electrically insulating continuous backplane layer is attached to the backside of the solar cells and covers the first cell metallization of each of the solar cells. Via holes through the continuous backplane layer provide access to the first cell metallization. A second cell metallization is connected to the first cell metallization of each of the solar cells and electrically interconnects the solar cells in the array.

    Abstract translation: 太阳能电池阵列解决方案,包括单片太阳能电池阵列和制造方法。 第一图案化电池金属化接触具有光接收前侧和后侧的多个太阳能电池中的每一个的基极和发射极区域。 电绝缘的连续背板层连接到太阳能电池的背面并且覆盖每个太阳能电池的第一电池金属化。 穿过连续背板层的通孔提供对第一电池金属化的访问。 第二电池金属化连接到每个太阳能电池的第一电池金属化,并将阵列中的太阳能电池电互连。

    DISCONTINUOUS EMITTER AND BASE ISLANDS FOR BACK CONTACT SOLAR CELLS
    49.
    发明申请
    DISCONTINUOUS EMITTER AND BASE ISLANDS FOR BACK CONTACT SOLAR CELLS 审中-公开
    反接触式太阳能电池不连续的发射器和基座

    公开(公告)号:US20150200313A1

    公开(公告)日:2015-07-16

    申请号:US14596213

    申请日:2015-01-13

    Applicant: Solexel, Inc.

    Abstract: Back contact solar cells having a discontinuous emitter comprising a plurality of emitter islands are provided. The back contact solar cell comprises a semiconductor layer with a background base doping and having a sunlight-receiving frontside and a backside opposite said sunlight-receiving frontside. An emitter layer having a doping opposite said semiconductor layer background doping is positioned on the semiconductor layer backside. A trench isolation pattern partitions the emitter layer and semiconductor layer into a plurality of discontinuous emitter regions on the semiconductor layer backside. At least one base island region contacting the semiconductor layer is positioned within each of the discontinuous emitter regions on the semiconductor layer backside.

    Abstract translation: 提供具有包括多个发射岛的不连续发射体的背接触太阳能电池。 背接触太阳能电池包括具有背景基底掺杂并具有阳光接收的前沿和与阳光接收的前侧相对的背面的半导体层。 具有与所述半导体层背景掺杂相反的掺杂的发射极层位于半导体层背面。 沟槽隔离图案将发射极层和半导体层分隔成半导体层背面上的多个不连续发射极区域。 接触半导体层的至少一个基岛区域位于半导体层背面的每个不连续发射极区域内。

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