TUBULAR PERC DOUBLE-SIDED PHOTOVOLTAIC CELL AND METHOD FOR FABRICATION THEREOF AND DEDICATED DEVICE

The present invention discloses a bifacial tube-type PERC solar cell, which comprises a rear silver major grid line, a rear aluminum grid line, a rear surface composite film, P-type silicon, an N-type emitter, a front surface silicon nitride film, and a front silver electrode. The rear surface compo...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	LIN, Kang-Cheng, LAI, Chun-Wen, YIN, Wenjie, HO, Ta-neng, HE, Nailin, FANG, Jiebin, CHEN, Gang
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SEMICONDUCTOR DEVICES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The present invention discloses a bifacial tube-type PERC solar cell, which comprises a rear silver major grid line, a rear aluminum grid line, a rear surface composite film, P-type silicon, an N-type emitter, a front surface silicon nitride film, and a front silver electrode. The rear surface composite film includes one or more films selected from a group comprising an aluminum oxide film, a silicon dioxide film, a silicon oxynitride film, and a silicon nitride film; it is deposited at a rear surface of a silicon wafer by a tubular PECVD device. the tubular PECVD device includes four gas lines of silane, ammonia, trimethyl aluminum, and nitrous oxide. A graphite boat is employed to load and unload the silicon wafer in the tubular PECVD device; a pin slot of the graphite boat has a depth of 0.5-1 mm. The present invention also discloses a method and a device for preparing a bifacial tube-type PERC solar cell. The present invention absorbs sunlight on both surfaces, has high photoelectric conversion efficiency, high appearance quality, and high EL yield, and could solve the problems of both scratching and undesirable deposition.