Solar cell

US7838762B2 · kind B2 · utility

Assignee

• LG ELECTRONICS INC. · KR

Inventors

• Daehee Jang · Seoul, KR
• Jihoon Ko · Seoul, KR
• Juwan Kang · Seoul, KR
• Jonghwan Kim · Seoul, KR

Key dates

• Filing date: Sep 15, 2009
• Grant date: Nov 23, 2010
• Expiry date: Sep 15, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/547

Abstract

A solar cell comprises a substrate configured to have a plurality of via holes and a first conductive type, an emitter layer placed in the substrate and configured to have a second conductive type opposite to the first conductive type, a plurality of first electrodes electrically coupled to the emitter layer, a plurality of current collectors electrically coupled to the first electrodes through the plurality of via holes, and a plurality of second electrodes electrically coupled to the substrate. The plurality of via holes comprises at least two via holes having different angles.