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    • 3. 发明申请
    • Selective light absorbing semiconductor surface
    • 选择性光吸收半导体表面
    • US20080066797A1
    • 2008-03-20
    • US11825558
    • 2007-07-05
    • Avto TavkhelidzeAmiran BibilashviliZara Taliashvili
    • Avto TavkhelidzeAmiran BibilashviliZara Taliashvili
    • H01L35/16
    • H01L31/055H01L31/02363Y02E10/52
    • A selective light absorbing semiconductor surface is disclosed. Said semiconductor surface is characterized by the presence of indentations or protrusions comprising a grating of dimensions such as to enhance the absorption of selected frequencies of radiation. In a preferred embodiment of the present invention, said grating is formed on the surface of a doped semiconductor for the purposes of optical frequency down conversion. The semiconductor is doped so as to create energy levels within the forbidden zone between the conduction and valence bands. Incident radiation excites electrons from the valence to conduction band from where they decay to the meta-stable newly created energy level in the forbidden zone. From there, electrons return to the valence band, accompanied by the emission of radiation of lower frequency than that of the incident radiation. Optical frequency down-conversion is thus efficiently and rapidly accomplished. In a further embodiment of the present invention said grating is formed on the entrance and exit surfaces of one or more layers of a single or multi-junction solar cell. In this embodiment said grating is characterized by indents of depth λ/4 and width >λ, where λ is the wavelength of solar radiation incident on the layer under consideration.
    • 公开了选择性光吸收半导体表面。 所述半导体表面的特征在于存在包括尺寸的光栅的凹陷或突起,以增强所选择的辐射频率的吸收。 在本发明的优选实施例中,为了进行光频率下变换,所述光栅形成在掺杂半导体的表面上。 半导体被掺杂以便在导电带和价带之间的禁区内产生能级。 入射辐射激发电子从价态衰减到禁带的元稳定新创能量的价带到导带。 从那里,电子返回价带,伴随着辐射频率低于入射辐射的辐射。 因此,光频率下变换被有效且快速地实现。 在本发明的另一实施例中,所述光栅形成在单结或多结太阳能电池的一层或多层的入射表面和出射表面上。 在该实施例中,所述光栅的特征在于深度为λ/ 4和宽度>λ,其中λ是入射在所考虑的层上的太阳辐射的波长。
    • 6. 发明授权
    • Selective light absorbing semiconductor surface
    • 选择性光吸收半导体表面
    • US08227885B2
    • 2012-07-24
    • US11825558
    • 2007-07-05
    • Avto TavkhelidzeAmiran BibilashviliZaza Taliashvili
    • Avto TavkhelidzeAmiran BibilashviliZaza Taliashvili
    • H01L33/50
    • H01L31/055H01L31/02363Y02E10/52
    • A selective light absorbing semiconductor surface is disclosed. Said semiconductor surface is characterized by the presence of indentations or protrusions comprising a grating of dimensions such as to enhance the absorption of selected frequencies of radiation. In a preferred embodiment of the present invention, said grating is formed on the surface of a doped semiconductor for the purposes of optical frequency down conversion. The semiconductor is doped so as to create energy levels within the forbidden zone between the conduction and valence bands. Incident radiation excites electrons from the valence to conduction band from where they decay to the meta-stable newly created energy level in the forbidden zone. From there, electrons return to the valence band, accompanied by the emission of radiation of lower frequency than that of the incident radiation. Optical frequency down-conversion is thus efficiently and rapidly accomplished. In a further embodiment of the present invention said grating is formed on the entrance and exit surfaces of one or more layers of a single or multi-junction solar cell. In this embodiment said grating is characterized by indents of depth λ/4 and width >λ, where λ is the wavelength of solar radiation incident on the layer under consideration.
    • 公开了选择性光吸收半导体表面。 所述半导体表面的特征在于存在包括尺寸的光栅的凹陷或突起,以增强所选择的辐射频率的吸收。 在本发明的优选实施例中,为了进行光频率下变换,所述光栅形成在掺杂半导体的表面上。 半导体被掺杂以便在导电带和价带之间的禁区内产生能级。 入射辐射激发电子从价态衰减到禁带的元稳定新创能量的价带到导带。 从那里,电子返回价带,伴随着辐射频率低于入射辐射的辐射。 因此,光频率下变换被有效且快速地实现。 在本发明的另一实施例中,所述光栅形成在单结或多结太阳能电池的一层或多层的入射表面和出射表面上。 在该实施例中,所述光栅的特征在于深度λ/ 4和宽度>λ,其中λ是入射在所考虑的层上的太阳辐射的波长。
    • 9. 发明授权
    • Process for making electrode pairs
    • 制作电极对的工艺
    • US07658772B2
    • 2010-02-09
    • US11254495
    • 2005-10-20
    • Avto TavkhelidzeStuart Harbron
    • Avto TavkhelidzeStuart Harbron
    • H01L21/00H05K3/30
    • H01J9/02Y10T29/413Y10T29/49128Y10T29/49147Y10T29/49156
    • The present invention is a process for making a matching pair of surfaces, which involves creating a network of channels on one surface of two substrate. The substrates are then coated with one or more layers of materials, the coating extending over the regions between the channels and also partially into the channels. The two coated surfaces are then contacted and pressure is applied, which causes the coatings to be pressed into the network of channels, and surface features on one of the layers of material creates matching surface features in the other, and vice versa. It also results in the formation of a composite. In a final step, the composite is separated, forming a matching pair of surfaces.
    • 本发明是一种用于制作匹配的一对表面的方法,其涉及在两个基板的一个表面上产生通道网络。 然后用一层或多层材料涂覆基材,涂层在通道之间的区域上延伸并且还部分地进入通道。 然后将两个涂覆的表面接触并施加压力,这导致涂层被压入通道网络中,并且一层材料上的表面特征在另一层上产生匹配的表面特征,反之亦然。 它还导致复合材料的形成。 在最后一步中,复合物被分离,形成一对匹配的表面。