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    • 3. 发明授权
    • Emitter wrap-through back contact solar cells on thin silicon wafers
    • 在薄硅晶片上的发射器回接接触太阳能电池
    • US07649141B2
    • 2010-01-19
    • US10880190
    • 2004-06-29
    • Russell R. SchmitJames M. Gee
    • Russell R. SchmitJames M. Gee
    • H01L31/00H02N6/00
    • H01L31/0682H01L31/022458Y02E10/547
    • A thin emitter wrap-through solar cell and method for making a thin emitter wrap-through solar cell. The cell preferably includes a silicon wafer substrate having a thickness of less than 280 microns. The p-type area on the back side of the cell is minimized, which maximizes the collector area and reduces or eliminates stress due to passivation of the p-type area, which is required for conventional solar cells. The efficiency of the cell of the present invention peaks for a much smaller thickness than that for conventional cells. Thus thin wafers of inexpensive, lower quality silicon may be used without a significant efficiency penalty, providing a large cost advantage over other solar cell configurations. Vias through the substrate, which connect emitter layers on the front and back surfaces of the substrate, may consist of holes which are doped, or alternatively may be solid doped channels formed by migration of a solvent, which preferably contains a dopant, caused by a gradient-driven process.
    • 用于制造薄发射器包裹太阳能电池的薄发射器包裹太阳能电池和方法。 电池优选包括厚度小于280微米的硅晶片衬底。 电池背面的p型区域被最小化,这使得集电极面积最大化并且减少或消除了由常规太阳能电池所需的p型区域的钝化引起的应力。 本发明的电池的效率比常规电池的效率高得多。 因此,可以使用廉价,低质量的硅的薄晶片,而没有显着的效率损失,相比其他太阳能电池配置提供了巨大的成本优势。 穿过衬底的通孔,其连接衬底的前表面和后表面上的发射极层,可以由掺杂的孔组成,或者可以是由优选含有掺杂剂的溶剂的迁移形成的固体掺杂通道, 梯度驱动过程。
    • 4. 发明授权
    • Enhanced light absorption of solar cells and photodetectors by diffraction
    • 通过衍射增强太阳能电池和光电探测器的光吸收
    • US06858462B2
    • 2005-02-22
    • US09834308
    • 2001-04-11
    • Saleem H. ZaidiJames M. Gee
    • Saleem H. ZaidiJames M. Gee
    • H01L31/0232H01L31/0236H01L21/02
    • H01L31/02363H01L31/1804Y02E10/547Y02P70/521
    • Enhanced light absorption of solar cells and photodetectors by diffraction is described. Triangular, rectangular, and blazed subwavelength periodic structures are shown to improve performance of solar cells. Surface reflection can be tailored for either broadband, or narrow-band spectral absorption. Enhanced absorption is achieved by efficient optical coupling into obliquely propagating transmitted diffraction orders. Subwavelength one-dimensional structures are designed for polarization-dependent, wavelength-selective absorption in solar cells and photodetectors, while two-dimensional structures are designed for polarization-independent, wavelength-selective absorption therein. Suitable one and two-dimensional subwavelength periodic structures can also be designed for broadband spectral absorption in solar cells and photodetectors. If reactive ion etching (RIE) processes are used to form the grating, RIE-induced surface damage in subwavelength structures can be repaired by forming junctions using ion implantation methods. RIE-induced surface damage can also be removed by post RIE wet-chemical etching treatments.
    • 描述了通过衍射增强太阳能电池和光电探测器的光吸收。 三角形,矩形和闪耀的亚波长周期结构被显示以改善太阳能电池的性能。 表面反射可以适用于宽带或窄带光谱吸收。 通过有效的光耦合到倾斜传播的衍射级中实现增强的吸收。 亚波长一维结构被设计用于太阳能电池和光电探测器中的偏振相关的波长选择性吸收,而二维结构被设计用于其中的偏振无关的波长选择吸收。 也可以为太阳能电池和光电探测器中的宽带光谱吸收设计合适的一维和二维亚波长周期结构。 如果使用反应离子蚀刻(RIE)工艺来形成光栅,可以通过使用离子注入方法形成结来修复亚波长结构中的RIE诱导的表面损伤。 RIE诱导的表面损伤也可以通过RIE湿法化学蚀刻处理来去除。
    • 7. 发明申请
    • Interconnect Technologies for Back Contact Solar Cells and Modules
    • 用于背面接触太阳能电池和模块的互连技术
    • US20080216887A1
    • 2008-09-11
    • US11963841
    • 2007-12-23
    • Peter HackeDavid H. MeakinJames M. GeeSysavanh SouthimathBrian Murphy
    • Peter HackeDavid H. MeakinJames M. GeeSysavanh SouthimathBrian Murphy
    • H01L31/05H01L31/18
    • H01L31/022441H01L31/0516Y02E10/50Y10T29/49171
    • Methods and systems for interconnecting back contact solar cells. The solar cells preferably have reduced area busbars, or are entirely busbarless, and current is extracted from a variety of points on the interior of the cell surface. The interconnects preferably relieve stresses due to solder reflow and other thermal effects. The interconnects may be stamped and include external or internal structures which are bonded to the solder pads on the solar cell. These structures are designed to minimize thermal stresses between the interconnect and the solar cell. The interconnect may alternatively comprise porous metals such as wire mesh, wire cloth, or expanded metal, or corrugated or fingered strips. The interconnects are preferably electrically isolated from the solar cell by an insulator which is deposited on the cell, placed on the cell as a discrete layer, or laminated directly to desired areas of the interconnect.
    • 用于互连背接触太阳能电池的方法和系统。 太阳能电池优选地具有减小的面积母线,或者完全无母线,并且电流从电池表面内部的各种点提取。 互连优选地减轻由于焊料回流和其它热效应引起的应力。 互连可以被冲压并且包括结合到太阳能电池上的焊盘的外部或内部结构。 这些结构被设计成使互连和太阳能电池之间的热应力最小化。 互连可以可选地包括多孔金属,例如金属丝网,金属丝布或多孔金属,或波纹状或指形条。 互连优选地通过绝缘体与太阳能电池电隔离,所述绝缘体沉积在电池上,作为离散层放置在电池上,或者直接层压到互连的期望区域。
    • 10. 发明申请
    • MONOLITHIC MODULE ASSEMBLY FOR STANDARD CRYSTALLINE SILICON SOLAR CELLS
    • 标准晶体硅太阳能电池的单片模块组件
    • US20140060609A1
    • 2014-03-06
    • US13647152
    • 2012-10-08
    • PRABHAT KUMARSunhom PaakJames M. Gee
    • PRABHAT KUMARSunhom PaakJames M. Gee
    • H01L31/05H01L31/18
    • H01L31/0504H01L31/0512Y02E10/50
    • Apparatuses and assembly methods are provided for a monolithic solar cell panel assembly. The assembly comprises an array of solar cells having front electrical contacts and back electrical contacts, wherein a first set of the solar cells in the array are aligned to be electrically connected in series through a back circuit sheet having an array of back metal contacts connected to corresponding back electrical contacts on the first set of solar cells, and through a front circuit sheet having an array of front metal contacts connected to corresponding front electrical contacts on the first set of solar cells. Electrical connections may be made in a lamination step, in which an encapsulant polymer flows into gaps and an interconnect material connects the circuits to form the monolithic solar cell panel assembly.
    • 为单片太阳能电池板组件提供了装置和装配方法。 组件包括具有前电触头和背电触头的太阳能电池阵列,其中阵列中的第一组太阳能电池被对准以通过背电路片串联电连接,所述背板具有连接到 在第一组太阳能电池上的相应的后部电触点,以及通过连接到第一组太阳能电池组上的对应的前部电触点的前部金属触点阵列的前部电路板。 电连接可以在层压步骤中进行,其中密封剂聚合物流入间隙,并且互连材料连接电路以形成单片太阳能电池面板组件。