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    • 3. 发明专利
    • Solar cell contact fingers and solder pad arrangement for enhanced efficiency
    • 太阳能电池接点指示器和焊盘安装方式提高效率
    • JP2013239725A
    • 2013-11-28
    • JP2013140804
    • 2013-07-04
    • Sunpower Corpサンパワー コーポレイション
    • DENIS DE CEUSTER
    • H01L31/04
    • H01L31/022433H01L31/18Y02E10/50
    • PROBLEM TO BE SOLVED: To provide solar cell contact fingers and solder pad arrangement allowing high efficiency.SOLUTION: A solar cell comprises: negative metal contact fingers 413 electrically connected to N-type diffusion regions of the solar cell; and positive metal contact fingers 414 electrically connected to P-type diffusion regions of the solar cell. Both the N-type and P-type diffusion regions are on the backside of the solar cell. The solar cell includes a front side that faces the sun during normal operation. The negative and positive metal contact fingers 413, 414 may be interdigitated. For increased solar radiation collection, the metal contact fingers may be arranged to face a solder pad 410 and to cover portions of a perimeter of the solder pad with the entire metal contact fingers. For example, the negative metal contact fingers 413 may be arranged to face the solder pad 410 and to cover two or three sides of the solder pad 410 with the entire negative metal contact fingers 413.
    • 要解决的问题:提供允许高效率的太阳能电池接触指和焊盘布置。解决方案:太阳能电池包括:电连接到太阳能电池的N型扩散区的负金属接触指413; 以及与太阳能电池的P型扩散区域电连接的正极金属接触指状物414。 N型和P型扩散区都在太阳能电池的背面。 太阳能电池包括在正常操作期间面向太阳的前侧。 负的和正的金属接触指413,414可以是交叉的。 为了增加太阳辐射收集,金属接触指可以布置为面对焊料垫410并且覆盖焊料垫的整个金属接触指的周边部分。 例如,负金属接触指413可以布置为面对焊料焊盘410并且覆盖焊料垫410的整个负金属接触指413的两侧或三侧。
    • 6. 发明专利
    • Front contact solar cell with emitter
    • 前联系太阳能电池与发电机
    • JP2014150276A
    • 2014-08-21
    • JP2014078707
    • 2014-04-07
    • Sunpower Corpサンパワー コーポレイション
    • COUSINS PETER JOHN
    • H01L31/072H01L31/056
    • H01L31/022425H01L31/0236H01L31/056H01L31/068H01L31/0745H01L31/1804H01L31/182Y02E10/52Y02E10/547Y02P70/521
    • PROBLEM TO BE SOLVED: To provide a structure of a light-receiving surface electrode type solar cell having relatively-high conversion efficiency and large cost-effectiveness, and to provide manufacturing processes of the solar cell.SOLUTION: A bipolar solar cell 100 includes a back junction formed of an N-type silicon substrate 101 and a P-type polysilicon emitter 108 formed on a rear surface side of the solar cell 100. An antireflection layer 103 is formed on a textured front surface on the light-receiving surface side of the silicon substrate 101. A negative electrode side metal contact 102 on a light-receiving surface of the solar cell 100 is electrically connected to the substrate 101. A positive electrode type metal contact 110 on a rear surface of the solar cell 100 is electrically connected to the polysilicon emitter 108. The positive electrode type metal contact 110 forms an infrared ray reflection layer together with a dielectric layer 109, thereby increasing collection of solar radiation.
    • 要解决的问题:提供具有相对高的转换效率和大的成本效益的光接收表面电极型太阳能电池的结构,并提供太阳能电池的制造工艺。解决方案:双极太阳能电池100包括 由N型硅衬底101和形成在太阳能电池100的背面侧的P型多晶硅发射器108形成的反射结。防反射层103形成在光接收表面侧的织构化前表面上 硅基板101.太阳能电池100的受光面上的负极侧金属接触件102与基板101电连接。太阳能电池单元100的背面的正极型金属接点110电连接 正极型金属触点110与电介质层109一起形成红外线反射层,从而增加溶胶的收集 ar辐射。
    • 9. 发明专利
    • Anti-reflective coating with high optical absorption layer for backside contact solar cells
    • 用于背光接触太阳能电池的高光吸收层防反射涂层
    • JP2013138250A
    • 2013-07-11
    • JP2013045365
    • 2013-03-07
    • Sunpower Corpサンパワー コーポレイション
    • LUAN HSIN-CHIAODENIS DE CEUSTER
    • H01L31/04
    • H01L31/02168H01L31/02167H01L31/022441H01L31/02363H01L31/02366H01L31/0682Y02E10/50Y02E10/546Y02E10/547
    • PROBLEM TO BE SOLVED: To provide a backside contact solar cell which prevents degradation of front side passivation due to UV radiation.SOLUTION: A multilayer anti-reflection structure 310 for a backside contact solar cell 300 is disclosed. The anti-reflection structure 310 may be formed on a front side of the backside contact solar cell 300. The anti-reflection structure 310 may include a passivation level 312, a high optical absorption layer 313 over the passivation level 312, and a low optical absorption layer 314 over the high optical absorption layer 313. The passivation level 312 may include silicon dioxide thermally-grown on a textured surface of a solar cell substrate 102, which may be an N-type silicon substrate. The high optical absorption layer 313 may be configured to block at least 10% of UV radiation coming into the substrate. The high optical absorption layer 313 may comprise high-k silicon nitride, and the low optical absorption layer 314 may comprise low-k silicon nitride.
    • 要解决的问题:提供一种防止由于紫外线辐射引起的前侧钝化的劣化的背面接触太阳能电池。解决方案:公开了一种用于背面接触太阳能电池300的多层抗反射结构310。 防反射结构310可以形成在背面接触太阳能电池300的前侧上。防反射结构310可以包括钝化水平312,钝化层312上的高光吸收层313和低光学 吸收层314上。钝化层312可以包括在可以是N型硅衬底的太阳能电池衬底102的纹理表面上热生长的二氧化硅。 高光吸收层313可以被配置为阻挡进入衬底的UV辐射的至少10%。 高光吸收层313可以包括高k氮化硅,并且低光吸收层314可以包括低k氮化硅。