Solar cell

A solar cell is provided. The solar cell includes a Si substrate having a first surface and a second surface opposite to each other, an emitter, a first electrode, a doped region, a passivation layer, a doped polysilicon layer, a semiconductor layer, and a second electrode. The emitter is disposed o...

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Bibliographische Detailangaben
Hauptverfasser:	Lin, Chen-Cheng, Lin, Chao-Cheng, Yeh, Chun-Ming, Peng, Chien-Kai, Du, Chen-Hsun, Huang, Chorng-Jye
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION SEMICONDUCTOR DEVICES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	A solar cell is provided. The solar cell includes a Si substrate having a first surface and a second surface opposite to each other, an emitter, a first electrode, a doped region, a passivation layer, a doped polysilicon layer, a semiconductor layer, and a second electrode. The emitter is disposed on the first surface. The first electrode is disposed on the emitter. The doped region is disposed in the second surface. The passivation layer is disposed on the second surface. The doped polysilicon layer is disposed on the passivation layer, wherein a plurality of holes penetrates the doped polysilicon layer and the passivation layer and exposes a portion of the second surface. The semiconductor layer is disposed on the doped polysilicon layer and in the holes. The band gap of the semiconductor layer is greater than that of the Si substrate. The second electrode is disposed on the semiconductor layer.