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Homogeneous high-sheet-resistance emitter (HHSE), excellent surface passivation, and high-quality contacts, along with narrow gridlines, are needed for high-efficiency solar cells. However, HHSE in conjunction with screen-printed (SP) contacts often gives low fill factor (FF) because of high contact resistance. We capitalized on the glass-etching property of light-induced plating of silver to decrease...
The p-n Si/SiC heterojunctions are prepared successfully in LPCVD (low-pressure chemical vapor deposition). The sheet resistance of the Si epilayers can be adjusted from 60000 ??/?? to 300 ??/?? by changing the ratio of diborane and silane in the mixed gas. Optoelectric response test results of the heterojunction samples indicate that high doping concentration of the Si epilayer induces smaller photocurrent...
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