Electrode structure and solar cell comprising the same

摘要

An electrode structure (2) is disposed in a substrate (21) of a solar cell. The electrode structure includes a plurality of bus bar electrodes (22) and a plurality of finger electrodes (23). The bus bar electrodes are alternately disposed on the substrate. The finger electrodes are disposed on the two sides of the bus bar electrodes. Each of the finger electrodes has a first terminal (231) and a second terminal (232). The first terminals of the finger electrodes are connected to one of the bus bar electrodes. The size (d1) of the first terminal (231) is larger than that (d2) of the second terminal (232).