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    METHOD OF MANUFACTURING A PHOTOVOLTAIC DEVICE
    31.
    发明申请
    METHOD OF MANUFACTURING A PHOTOVOLTAIC DEVICE 有权
    制造光伏器件的方法

    公开(公告)号：US20140273334A1

    公开(公告)日：2014-09-18

    申请号：US14212584

    申请日：2014-03-14

    Applicant: First Solar, Inc.

    Inventor： Scott Christensen ,  Pawel Mrozek ,  Gang Xiong ,  San Yu

    IPC: H01L31/18

    CPC classification number: H01L31/022425 ,  H01L31/03925 ,  H01L31/073 ,  H01L31/1828 ,  H01L31/186 ,  Y02E10/543 ,  Y02P70/521

    Abstract: A method to improve CdTe-based photovoltaic device efficiency is disclosed, the method including steps for removing surface contaminants from a semiconductor absorber layer prior to the deposition or formation of a back contact layer on the semiconductor absorber layer, the surface contaminants removed using at least one of a dry etching process and a wet etching process.

    Abstract translation: 公开了一种改善CdTe基光伏器件效率的方法，该方法包括在半导体吸收层上沉积或形成背接触层之前从半导体吸收体层去除表面污染物的步骤，至少使用至少去除表面污染物 干蚀刻工艺和湿蚀刻工艺之一。

    VAPOR TRANSPORT DEPOSITION METHOD AND SYSTEM FOR MATERIAL CO-DEPOSITION
    32.
    发明申请
    VAPOR TRANSPORT DEPOSITION METHOD AND SYSTEM FOR MATERIAL CO-DEPOSITION 审中-公开
    蒸气运输沉积方法和材料沉积系统

    公开(公告)号：US20130089948A1

    公开(公告)日：2013-04-11

    申请号：US13633664

    申请日：2012-10-02

    Applicant: First Solar, Inc.

    Inventor： Gang Xiong ,  John Barden

    IPC: H01L21/365 ,  B05B1/24

    CPC classification number: C23C14/246 ,  C23C14/0629 ,  C23C14/228 ,  C23C16/45568

    Abstract: An improved feeder system and method for vapor transport deposition that includes at least two vaporizers couple to a common distributor for vaporizing and co-depositing at least any two vaporizable materials as a material layer on a substrate. Composition of the material layer can be controlled by changing the flow of vapors from the respective vaporizers into the distributor to adjust the proportion of respective vapors in the combined vapor prior to deposition. Flow of the vapors from the respective vaporizers into the distributor may be controlled by adjusting the flow of carrier gas transporting the raw material into the vaporizer and/or by adjusting the vibration speed and/or amplitude of the powder feeders that process the raw material.

    Abstract translation: 一种用于蒸气传输沉积的改进的馈送系统和方法，其包括至少两个蒸发器，其耦合到共同的分配器，用于将至少任意两种可蒸发材料作为材料层共沉积在基板上。 材料层的组成可以通过将蒸气从各蒸发器的流动改变为分布器来控制，以在沉积之前调节蒸气中各蒸气的比例。 可以通过调节将原料输送到蒸发器中的载气的流动和/或通过调节处理原料的粉末进料器的振动速度和/或振幅来控制从相应的蒸发器到分配器的蒸气的流动。

    PHOTOVOLTAIC DEVICES AND METHODS OF MAKING
    36.
    发明公开
    PHOTOVOLTAIC DEVICES AND METHODS OF MAKING 审中-公开

    公开(公告)号：US20240015992A1

    公开(公告)日：2024-01-11

    申请号：US18039820

    申请日：2021-12-01

    Applicant: First Solar, Inc.

    Inventor： Duyen Cao ,  Markus Gloeckler ,  Sachit Grover ,  James Hack ,  Chungho Lee ,  Dingyuan Lu ,  Aravamuthan Varadarajan ,  Gang Xiong ,  Zhibo Zhao

    IPC: H10K30/10 ,  H10K71/12

    CPC classification number: H10K30/10 ,  H10K71/12

    Abstract: Photovoltaic devices (100) with type ll-VI semiconductor absorber materials (160) having p-type contact layers (180) are obtained by forming a ll-VI absorber layer over a substrate stack (113), wherein the type II material includes cadmium (Cd) and the type VI material includes tellurium (Te); contacting an alkaline wash fluid, comprising a hydroxide, to a second surface of the absorber layer to produce a Cd-rich surface, depositing a p-type contact layer (180) over the absorber layer (160), whereby the p-type contact layer is directly adjacent to the Cd-rich layer, and wherein the p-type contact layer comprises at least one of: PTAA, P3HT, poly-TPD, TFB, TTF-1, TF8-TAA, TIF8-TAA, SGT-407, PCDTBT, SpiroOMeTAD, anthracene-based HTM, polythiophene, semiconducting polymers, NiO, CuSCN, or Cui; and depositing a conductive layer (190) over the p-type contact layer.

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