SOLAR CELL

• Main Authors: KIM GUNHO, LEE HEONMIN, CHEUN HYEUNSEOK, YOON WONKI
• Format: Patent
• Language: English
• Published: 17.10.2013
• 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 includes a substrate of a first conductive type, an emitter region which is positioned at a first surface of the substrate and has a second conductive type different from the first conductive type, a first surface field region which is positioned at the first surface of the substrate and separated from the emitter region, a first auxiliary electrode positioned directly on the emitter region, a second auxiliary electrode positioned directly on the first surface field region, a first main electrode positioned directly on the first auxiliary electrode, and a second main electrode positioned directly on the second auxiliary electrode. Each of the first and second auxiliary electrodes is a transparent conductive layer formed by doping a transparent conductive oxide layer with a conductive material.