Invention Grant
- Patent Title: Photovoltaic device
- Patent Title (中): 光伏装置
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Application No.: US14134743Application Date: 2013-12-19
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Publication No.: US09331226B2Publication Date: 2016-05-03
- Inventor: Ayumu Yano , Akiyoshi Ogane
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP
- Agency: Cantor Colburn LLP
- Priority: JP2011-145143 20110630
- Main IPC: H01L31/0747
- IPC: H01L31/0747 ; H01L31/0687 ; H01L31/0376
Abstract:
A photovoltaic device is provided having a semiconductor substrate, an i-type amorphous layer formed over a front surface of the semiconductor substrate, a p-type amorphous layer formed over the i-type amorphous layer, an i-type amorphous layer formed over a back surface of the semiconductor substrate, and an n-type amorphous layer formed over the i-type amorphous layer. The i-type amorphous layer and the i-type amorphous layer have oxygen concentration profiles in which concentrations are reduced in a step-shape from regions near interfaces with the semiconductor substrate and along a thickness direction, and an oxygen concentration in the step-shape portion of the i-type amorphous layer is higher than an oxygen concentration in the step-shape portion of the i-type amorphous layer.
Public/Granted literature
- US20140102528A1 PHOTOVOLTAIC DEVICE Public/Granted day:2014-04-17
Information query
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