公开(公告)号：US10811551B2

公开(公告)日：2020-10-20

申请号：US16097590

申请日：2017-11-14

Applicant: Korea Research Institute of Standards and Science

Inventor： Sang-Jun Lee ,  Jun-Oh Kim ,  Yeongho Kim ,  Sang-Woo Kang

IPC: H01L31/046 ,  H01L31/0224 ,  H01L31/0687 ,  H01L31/0392 ,  H01L31/18 ,  H01L31/05 ,  H01L31/054

Abstract: A tandem solar cell includes a substrate a plurality of sub-cells stacked on the substrate and configured to sequentially perform photoelectric conversion with different wavelength band, and a metal disk array disposed on at least one of interfaces between adjacent sub-cells. A center wavelength of wavelength bands corresponding to the sub-cells gradually decreases as progressing downward with respect to an uppermost layer. The metal disk array reflects a light transmitting a sub-cell disposed over the metal disk array without being absorbed therein. The metal disk array is inserted by means of wafer bonding.

公开(公告)号：US10957808B2

公开(公告)日：2021-03-23

申请号：US16642338

申请日：2018-09-17

Applicant: Korea Research Institute of Standards and Science

Inventor： Sang-Jun Lee ,  Jun-Oh Kim ,  Yeongho Kim

IPC: H01L31/0392 ,  H01L31/0216 ,  H01L31/0725 ,  H01L31/0735 ,  H01L31/18

Abstract: A flexible double-junction solar cell includes a flexible substrate including a lower electrode layer, an InGaAs solar cell disposed to be in contact with the lower electrode layer of the flexible substrate, and a GaAs solar cell disposed on the InGaAs solar cell and connected to the InGaAs solar cell in series. The GaAs solar cell includes a metal nanodisk array disposed on a lower surface thereof and a void array, aligned with the metal nanodisk array, is disposed below the metal nanodisk array.