Invention Grant
- Patent Title: Photovoltaic devices and method of manufacturing
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Application No.: US16522980Application Date: 2019-07-26
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Publication No.: US10896991B2Publication Date: 2021-01-19
- Inventor: Changming Jin , Sanghyun Lee , Jun-Ying Zhang
- Applicant: First Solar, Inc.
- Applicant Address: US AZ Tempe
- Assignee: First Solar, Inc.
- Current Assignee: First Solar, Inc.
- Current Assignee Address: US AZ Tempe
- Agency: MacMillan, Sobanski & Todd, LLC
- Main IPC: H01L31/073
- IPC: H01L31/073 ; H01L31/18 ; H01L31/0264 ; H01L31/0272 ; H01L21/02
Abstract:
Disclosed are methods for the surface cleaning and passivation of PV absorbers, such as CdTe substrates usable in solar cells, and devices made by such methods. In some embodiments, the method involves an anode layer ion source (ALIS) plasma discharge process to clean and oxidize a CdTe surface to produce a thin oxide layer between the CdTe layer and subsequent back contact layer(s).
Information query
IPC分类:
