Invention Grant
- Patent Title: Photovoltaic device
-
Application No.: US12940876Application Date: 2010-11-05
-
Publication No.: US08895846B2Publication Date: 2014-11-25
- Inventor: Isik C. Kizilyalli , Melissa Archer , Harry Atwater , Thomas J. Gmitter , Gang He , Andreas Hegedus , Gregg Higashi
- Applicant: Isik C. Kizilyalli , Melissa Archer , Harry Atwater , Thomas J. Gmitter , Gang He , Andreas Hegedus , Gregg Higashi
- Applicant Address: US CA Sunnyvale
- Assignee: Alta Devices, Inc.
- Current Assignee: Alta Devices, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Sawyer Law Group, P.C.
- Main IPC: H01L31/00
- IPC: H01L31/00 ; H01L31/0735 ; H01L31/0236 ; H01L31/0304

Abstract:
Methods and apparatus are provided for converting electromagnetic radiation, such as solar energy, into electric energy with increased efficiency when compared to conventional solar cells. A photovoltaic (PV) unit, according to embodiments of the invention, may have a very thin absorber layer produced by epitaxial lift-off (ELO), all electrical contacts positioned on the back side of the PV device to avoid shadowing, and/or front side and back side light trapping employing a diffuser and a reflector to increase absorption of the photons impinging on the front side of the PV unit. Several PV units may be combined into PV banks, and an array of PV banks may be connected to form a PV module with thin strips of metal or conductive polymer applied at low temperature. Such innovations may allow for greater efficiency and flexibility in PV devices when compared to conventional solar cells.
Public/Granted literature
- US20110048532A1 PHOTOVOLTAIC DEVICE Public/Granted day:2011-03-03
Information query
IPC分类: