Solar cell and method of manufacturing the same

• Main Authors: Ahn, Sehwon, Ji, Kwangsun
• Format: Patent
• Language: English
• Published: 04.06.2019
• Subjects: BASIC ELECTRIC ELEMENTS; 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

A solar cell and a method of manufacturing the same are disclosed. The solar cell includes a semiconductor substrate, a first semiconductor region positioned at a front surface or a back surface of the semiconductor substrate and doped with impurities of a first conductive type, a first electrode connected to the first semiconductor region, and a second electrode connected to the back surface of the semiconductor substrate. The second electrode is formed of a metal foil, and an air gap is formed between the second electrode formed of the metal foil and the back surface of the semiconductor substrate.