公开(公告)号：US11557689B2

公开(公告)日：2023-01-17

申请号：US16875131

申请日：2020-05-15

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Doh Kwon Lee ,  Yoon Hee Jang ,  In Ho Kim ,  Thi Kim Cuc Mai ,  Wan Soo Son ,  Jeung hyun Jeong

IPC: H01L25/00 ,  H01L31/00 ,  H02S10/00 ,  H01L31/0725 ,  H01L31/0384 ,  H01L31/032 ,  H01L31/0749 ,  H01L31/0224 ,  H01L31/18

Abstract: An integrated tandem solar cell includes a first solar cell including a rear electrode, a light absorption layer disposed on the rear electrode, and a buffer layer disposed on the light absorption layer; a recombination layer including a first transparent conductive layer disposed on the buffer layer; a nanoparticle layer that is transparent and conductive, that is disposed on the first transparent conductive layer, and that planarizes the first solar cell; and a second transparent conductive layer disposed on the nanoparticle layer; and a second solar cell that is a perovskite solar cell including a perovskite layer and that is disposed on and bonded to the second transparent conductive layer of the recombination layer. The recombination layer electrically joins the first and second solar cells and planarizes the first solar cell so that the second solar cell is uniformly deposited in all regions thereof.