Patent ID: 8273597
Filing Date: 2012-09-25
Classification: H01L,Y02E,Y02P

Abstract:
1. A process for making a flexible solar panel comprising the steps of: (a) providing a substrate with patterned first electrodes thereon; (b) sequentially depositing a layer of a first material and a layer of a second material on the substrate with patterned first electrodes; (c) forming a plurality of patterned photoresists on the layer of the second material and at a plurality of conductive channels; (d) wet etching the layer of the first material and the layer of the second material to form a plurality of T-shaped structures at the conductive channels, wherein the etching rate for the first material is higher than that for the second material; (e) depositing at least a semiconductor film on the substrate with the patterned first electrodes to form photoelectrical conversion elements; (f) depositing at least one second electrode on the semiconductor film, so as to electrically connect the second electrodes to the first electrodes at the conductive channels; and (g) scribing the second electrodes and semiconductor film to separate individual cell to form a solar panel.