Patent ID: 9048356
Filing Date: 2015-06-02
Classification: H01L,Y02E

Abstract:
1. A photoelectric conversion device comprising: a first cell including a photoelectric conversion layer; a second cell stacked over the first cell and including a photoelectric conversion layer formed of a material having a wider band gap than that of the first cell; a first electrode and a second electrode provided under a surface of the first cell which is opposite to the second cell; and a third electrode provided over a surface of the second cell which is opposite to the first cell, wherein the first cell and the second cell each include a p-n junction or a p-i-n junction therein, wherein the first cell and the second cell are in contact with each other and a p-n junction is formed in a contact portion therebetween, wherein the first cell is electrically connected to the first electrode and the second electrode to form a back contact structure, wherein the second cell is electrically connected to the third electrode, wherein first voltage and first current are obtained between the first electrode and the third electrode, and wherein second voltage and second current are obtained between the first electrode and the second electrode.