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    • 3. 发明公开
    • 저면적의 스크린 프린트 금속 접촉구조물 및 방법
    • 低面积印刷金属接触结构和方法
    • KR1020080091104A
    • 2008-10-09
    • KR1020087015325
    • 2006-10-26
    • 뉴사우스 이노베이션즈 피티와이 리미티드선테크 파워 컴퍼니 리미티드
    • 웬햄스튜어트로스쉬젱롱메이리지징지아
    • H01L31/04H01L31/18
    • H01L31/022425H01L31/022433Y02E10/542
    • A solar cell comprises adjacent regions of oppositely doped semiconductor material forming a pn junction substantially parallel to front and rear surfaces of the solar cell. A surface of the semiconductor material has a plurality of depressions, with semiconductor material regions forming internal wall surface regions of the depressions being doped to the polarity of one of the semiconductor regions, with which they are in electrical communication. The wall surface regions of the depressions are isolated from the other oppositely doped semiconductor region and form contact points for a contact structure contacting the surface in which the depressions are formed. A dielectric layer is formed over the surface, the dielectric layer being thinner or non-existent in at least a portion of each depression, such that a screen printed metal contact structure formed over the dielectric layer and extending into the depressions makes contact with the semiconductor material in the depressions after sintering.
    • 太阳能电池包括相反掺杂的半导体材料的相邻区域,其形成基本上平行于太阳能电池的前表面和后表面的pn结。 半导体材料的表面具有多个凹陷,半导体材料区域形成凹陷的内壁表面区域被掺杂到半导体区域之一的极性,并与它们电连通。 凹陷的壁表面区域与另一个相反掺杂的半导体区域隔离,并形成接触构件的接触点,接触构件与形成凹部的表面接触。 在表面上形成介电层,电介质层在每个凹陷的至少一部分中更薄或不存在,使得形成在电介质层上并延伸到凹陷中的丝网印刷金属接触结构与半导体 材料在烧结后的凹陷中。