公开(公告)号：US20240063314A1

公开(公告)日：2024-02-22

申请号：US18260052

申请日：2021-12-20

申请人： REC SOLAR PTE. LTD.

发明人： Kenta NAKAYASHIKI ,  Shu Yunn CHONG ,  Ngeah Theng CHUA

IPC分类号： H01L31/0224 ,  H01L31/0747

CPC分类号： H01L31/022441 ,  H01L31/0747

摘要： A solar cell comprising a crystalline silicon substrate, a semiconductor layer arranged on a back surface of the substrate which is configured not to face a radiative source, when the solar cell is in use, and a transparent-conductive region arranged on a surface of the semiconductor layer, wherein the transparent conductive region comprises; a first layer having a first work function; and a second layer having a second work function and being interposed between the first layer and the semiconductor layer; wherein the second work function of the second layer is greater than the first work function of the first layer.

公开(公告)号：US20240072190A1

公开(公告)日：2024-02-29

申请号：US18259818

申请日：2021-12-20

申请人： REC SOLAR PTE. LTD.

发明人： Muzhi TANG ,  Priyadharsini KARUPPUSWAMY ,  Shu Yunn CHONG ,  Kenta NAKAYASHIKI

IPC分类号： H01L31/077 ,  H01L31/0475 ,  H01L31/076 ,  H01L31/18

CPC分类号： H01L31/077 ,  H01L31/0475 ,  H01L31/076 ,  H01L31/1816

摘要： A solar cell comprising a silicon substrate and a layered structure arranged on a surface of the silicon substrate, the layered structure comprising; a first layer comprising a percentage of crystalline material arranged within an amorphous matrix, the first layer being arranged on the surface of the silicon substrate; a second layer comprising a percentage of crystalline material arranged within an amorphous matrix, the second layer being interposed between the first layer and the surface of the silicon substrate; wherein the percentage of crystalline material in the first layer is greater than the percentage of crystalline material in the second layer.

公开(公告)号：US20240088313A1

公开(公告)日：2024-03-14

申请号：US18259977

申请日：2021-12-20

申请人： REC SOLAR PTE. LTD.

发明人： Muzhi TANG ,  Shu Yunn CHONG

IPC分类号： H01L31/0236 ,  H01L31/0747 ,  H01L31/18

CPC分类号： H01L31/02366 ,  H01L31/0747 ,  H01L31/1812

摘要： A solar cell comprising a substrate having a front surface configured to face a light source in use, and a rear surface opposite the front surface. The front surface has a front surface morphology and the rear surface has a rear surface morphology. The front and rear surface morphologies are configured such that the front surface has a greater surface area than the rear surface. The solar cell also includes an emitter arranged on the rear surface of the substrate. Also disclosed is a method of forming a layered structure of a solar cell, which includes performing finishing processes such that a first (e.g. front) surface of a substrate has a greater surface area than a second (e.g. rear) surface. The method further includes providing a reflector layer that may be tuned to the morphology of the second surface.