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    • 4. 发明申请
    • A VERTICAL JUNCTION SOLAR CELL STRUCTURE AND METHOD
    • 垂直结型太阳能电池结构与方法
    • WO2013128901A1
    • 2013-09-06
    • PCT/JP2013/001135
    • 2013-02-26
    • SHARP KABUSHIKI KAISHA
    • DAY, StephenDIMMOCK, James Andrew RobertKAUER, Matthias
    • H01L31/04B82Y20/00B82Y40/00
    • H01L31/035281B82Y30/00H01L31/075H01L31/202Y02E10/548Y02P70/521
    • A non-close-packed vertical junction photovoltaic device includes a substrate(50), a two dimensional array of elongate nanostructures(52) extending substantially perpendicularly from a surface of the substrate(50), and a thin film solar cell disposed over the nanostructures(52) such that the thin film solar cell substantially conforms to the topography of the nanostructures(52). An average separation(57) of nearest neighbor solar cell coated nanostructures(52) is greater than zero and less than a vacuum wavelength of light corresponding to a band gap of absorption of the thin film solar cell. The thin film solar cell may include an active region(53) that conforms to the elongate nanostructures(52), a first electrode(51) that conforms to a surface of the active region(53), and a second electrode. A separation(57) of opposing outer surfaces of the first electrode(51) is greater than zero and less than the vacuum wavelength of the light corresponding to the band gap of the active region(53).
    • 非紧密堆积的垂直结光伏器件包括基板(50),从基板(50)的表面基本上垂直延伸的细长纳米结构(52)的二维阵列,以及设置在纳米结构上的薄膜太阳能电池 (52),使得薄膜太阳能电池基本上符合纳米结构(52)的形貌。 最近相邻的太阳能电池涂覆的纳米结构(52)的平均间隔(57)大于零并且小于对应于薄膜太阳能电池的吸收带隙的光的真空波长。 薄膜太阳能电池可以包括符合细长纳米结构(52)的活性区域(53),符合有源区域(53)的表面的第一电极(51)和第二电极。 第一电极(51)的相对的外表面的分离(57)大于零并且小于对应于有源区(53)的带隙的光的真空波长。
    • 8. 发明公开
    • HIGHLY EFFICIENT PHOTOVOLTAIC ENERGY HARVESTING DEVICE
    • HOCHEFFIZIENTE PHOTOVOLTAISCHE ENERGIEGEWINNUNGSVORRICHTUNG
    • EP2927968A1
    • 2015-10-07
    • EP15000925.6
    • 2015-03-30
    • Sharp Kabushiki Kaisha
    • Bellanger, MathieuDAY, StephenKauer, MatthiasRihani, Samir
    • H01L31/0693
    • H01L31/022433H01L31/02168H01L31/0543H01L31/0693H01L31/0735H02S40/22Y02E10/52Y02E10/544
    • A photovoltaic energy harvesting (PVEH) device (8) comprises a single-junction photovoltaic cell (11). The photovoltaic cell includes a light converting element made (24, 25) of a wide band-gap III-V active material spectrally matched to an ambient light source, a light receiving side that is free from front metal contact gridlines, and at least one discrete metal contact element (10) placed on the light receiving side that realizes power extraction. The active material of the light converting element may be made of (Al)GalnP compounds. The active material of the light converting element may be spectrally matched to ambient light in the form of at least one of an artificial light source and natural sunlight, and combinations thereof. The PVEH device may have a plurality of photovoltaic cells inter-connected in series to achieve a higher open-circuit voltage. A total fractional power loss due to series resistance, shunt resistance and contact shading is less than 20%.
    • 光伏能量收集(PVEH)装置(8)包括单结光伏电池(11)。 光伏电池包括与环境光源光谱匹配的宽带隙III-V活性材料制成的光转换元件(24,25),不具有前金属接触网格线的光接收侧,以及至少一个 放置在光接收侧的分立金属接触元件(10)实现功率提取。 光转换元件的活性材料可以由(Al)GalnP化合物制成。 光转换元件的活性材料可以与人造光源和自然阳光中的至少一种的形式的环境光以及它们的组合进行光谱匹配。 PVEH器件可以具有串联连接的多个光伏电池,以实现更高的开路电压。 串联电阻,分流电阻和触点阴影的总分功率损耗小于20%。