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    • 6. 发明申请
    • METHOD FOR LOCALLY REMOVING A SURFACE LAYER, AND SOLAR CELL
    • 方法表层及太阳能电池的局部切除
    • WO2012022329A3
    • 2012-04-19
    • PCT/DE2011075152
    • 2011-06-28
    • CENTROTHERM PHOTOVOLTAICS AGKUEHN TINOTEPPE ANDREASFRIESS TOBIASESTURO-BRETON AINHOAKELLER STEFFEN
    • KUEHN TINOTEPPE ANDREASFRIESS TOBIASESTURO-BRETON AINHOAKELLER STEFFEN
    • H01L31/0224H01L31/0236H01L31/18
    • H01L29/34H01L21/268H01L31/02363H01L31/1804Y02E10/547Y02P70/521
    • The invention relates to a method for locally removing a surface layer (36) which is applied to a texture (30) of a textured substrate, wherein the texture (30) has a multiplicity of structure elements (32) with structure tips (34) and/or structure edges, having the steps of locally irradiating the texture (30) through the surface layer (36) by means of laser radiation which at least partially penetrates through the surface layer (36) and which is at least partially absorbed by the texture (30), the intensity of which laser radiation is set such that the texture (30) is locally melted by means of the laser radiation and subsequently recrystallized (16), wherein the surface layer (36) is locally opened in the region of the structure tips (34) and/or of the structure edges such that the openings around the structure tips (34) and/or the structure edges after the local irradiation of the texture (30) are completely surrounded by continuous, non-open regions of the surface layer (36), and removing (18) the recrystallized regions (38) of the texture (30) in an etching step by means of an etching medium, wherein the surface layer (36) outside the recrystallized regions (38) is used as an etching mask against the etching medium, and to a solar cell (70).
    • 一种用于局部去除的表面层(36),其被施加到织构的衬底的织构(30)的过程中,织构(30)包括多个结构元件(32),其具有结构顶部(34)和/或具有结构的边缘,其包括以下步骤 通过表面层的装置中的纹理(30)通过该表面层(36)的局部照射(36)至少部分地穿透和从纹理(30)至少部分地吸收激光辐射,其强度被设定为使得所述纹理(30)借助于 激光辐射局部熔化和下面(16)中重结晶,其特征在于,使得根据纹理(30)的局部照射到尖端的结构中的开口在结构尖端的区域中的表面层(36)(34)和/或结构边缘局部地打开的 (34)和/或围绕的表面层的连续的开放区域边缘结构(36)v 其中,从所述再结晶区域的表面层(36)远(38)用作抗蚀刻介质的蚀刻掩模通过蚀刻介质的装置在蚀刻步骤中的纹理(30)的再结晶区域(38)的包围ollständig,并除去(18),和 太阳能电池(70)。
    • 7. 发明申请
    • METHOD FOR PRODUCING A SOLAR CELL WITH A SELECTIVE EMITTER
    • 一种用于生产太阳能电池具有选择性发射极
    • WO2012022349A3
    • 2013-07-18
    • PCT/DE2011075181
    • 2011-08-02
    • CENTROTHERM PHOTOVOLTAICS AGOLKOWSKA-OETZEL JOLANTAISENBERG JOERGTEPPE ANDREASGEIGER MATTHIAS
    • OLKOWSKA-OETZEL JOLANTAISENBERG JOERGTEPPE ANDREASGEIGER MATTHIAS
    • H01L31/18
    • H01L31/068H01L31/1804Y02E10/547Y02P70/521
    • Method for producing a solar cell with a selective emitter comprising the steps of forming (10, 12, 14) a dopant-containing glass layer (55) on at least one part of a surface of a solar cell substrate (50), forming (16) a weakly doped emitter (58) in regions of the solar cell substrate (50) that are covered by the glass layer (55) by indiffusing (16) dopant from the glass layer (55) into the solar cell substrate (50), locally indiffusing (18) additional dopant from the glass layer (55) into the solar cell substrate (50) by locally heating (18) regions of the solar cell substrate (50) that are located below the glass layer (55) for the purpose of locally forming (18) heavily doped emitter regions (60), wherein, as dopant-containing glass layer (55), such a glass layer (55) is formed (10, 12, 14) on the at least one part of the surface of the solar cell substrate (50), which glass layer has a lower dopant concentration in a first partial layer (52) of the glass layer (55), said first partial layer being located nearer the surface of the solar cell substrate (50), than in a second partial layer (54) of the glass layer (55), said second partial layer being located further away from the surface of the solar cell substrate (50).
    • 一种用于轻掺杂发射极的制造太阳能电池与包含形成在太阳能电池基板(50)的表面的至少一部分上含有掺杂剂玻璃层(55)中的步骤(10,12,14)的选择性发射极,形成(16)处理( (58)覆盖在(玻璃层55)的太阳能电池基板50)(的区域由从玻璃层(55)(在该太阳能电池基板50的掺杂剂)的内部,局部扩散(18)附加的从玻璃层的掺杂剂的向内扩散16)(55 ()(在太阳能电池基板50)代入(通过局部加热18)位于(在玻璃层下方55),用于本地培训18的目的在太阳能电池基板(50)的)的区域)重掺杂发射极区域(60,其中含有作为掺杂剂玻璃层( 55)这样的玻璃层(55形成)在所述至少(太阳能电池基板50)(10,12的表面的一部分,14)是一个 ř接近位于(50)的太阳能电池基板的玻璃层(55)具有从所述玻璃层(55)的所述太阳能电池基板(50)远离位于第二局部层(54)的表面的杂质浓度比在一个进一步的第一部分层(52)的表面上。
    • 8. 发明申请
    • METHOD FOR PRODUCING A SOLAR CELL COMPRISING A SELECTIVE EMITTER, AND SOLAR CELL
    • 一种用于生产太阳能电池具有选择性发射极和太阳能电池,
    • WO2012062298A3
    • 2013-04-11
    • PCT/DE2011075208
    • 2011-08-31
    • CENTROTHERM PHOTOVOLTAICS AGOLKOWSKA-OETZEL JOLANTATEPPE ANDREASISENBERG JOERGVOYER CATHERINE
    • OLKOWSKA-OETZEL JOLANTATEPPE ANDREASISENBERG JOERGVOYER CATHERINE
    • H01L31/18H01L31/068
    • H01L31/1804H01L31/068Y02E10/547Y02P70/521
    • A method for producing a solar cell comprising a selective emitter (58, 60), in which a first glass layer containing dopant of a first type is formed (12) on at least part of a surface of a solar cell substrate (50), a weakly doped emitter (58) is formed (12) in regions of the solar cell substrate (50) that are covered by the first glass layer by diffusion of dopant from the glass layer into the solar cell substrate, the first glass layer is removed (14), after the removal (14) of the first glass layer a second glass layer (52) containing dopant of the first type is formed (16) on at least a partial region of the weakly doped emitter (58) and additional dopant of the first type is diffused from the second glass layer (52) into the solar cell substrate (50) locally in regions of the solar cell substrate (50) that are covered by the second glass layer (52) by local heating (18) of the solar cell substrate (50), and in this way strongly doped emitter regions (60) are formed (18), and a solar cell.
    • 形成的方法,用于制造太阳能电池具有选择性发射极(58,60),其中含有至少一个在由所述太阳能电池基板的该第一玻璃层部分覆盖的太阳能电池基板(50)(12)的表面的部分的第一玻璃层的第一类型的掺杂剂 (50)通过掺杂剂的扩散,从在一个轻掺杂发射极(58)(12)的太阳能电池基板的玻璃层形成,所述第一玻璃层被除去(14),所述第一玻璃层的上的至少一部分去除(14)之后 由太阳能电池基板的局部加热(18),(50)局部地附加形成的轻掺杂发射极(58)具有含玻璃层(52)(16)的第二掺杂剂的第一类型和覆盖在所述第二玻璃层的太阳能电池基板(50)的(52)的区域 从第二玻璃层掺杂第一类型(52)设置在所述太阳能电池基底扩散(50) 形成并以这种方式重掺杂发射极区域(60)(18)和太阳能电池。