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Lamination structure and thin film solar cell with same

A solar cell, laminated structure technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of thin film solar cell performance impact, low open circuit voltage, poor stability, etc., to achieve stable and reliable overall performance, high light Voltage, high stability effect

Active Publication Date: 2010-02-03
GS SOLAR FU JIAN COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when amorphous germanium is used as the i-layer material, its high defect density, poor stability and low open circuit voltage greatly affect the performance of thin-film solar cells.

Method used

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  • Lamination structure and thin film solar cell with same
  • Lamination structure and thin film solar cell with same
  • Lamination structure and thin film solar cell with same

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Embodiment Construction

[0027] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many ways other than those described here, and those skilled in the art can make similar extensions without departing from the connotation of the present invention. Accordingly, the invention is not limited to the specific implementations disclosed below.

[0028] The amorphous silicon, amorphous silicon germanium, nanocrystalline silicon and amorphous germanium mentioned below all refer to hydrogenated materials of these substances, namely hydrogenated amorphous silicon, hydrogenated amorphous silicon germanium, hydrogenated nanocrystalline silic...

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Abstract

The invention provides a lamination structure and a thin film solar cell with the lamination structure. A lamination structure of hydrogenated nano-crystalline silicon and hydrogenated amorphous germanium is adopted as an intrinsic i layer of a p-i-n type thin film solar cell, and has strong capability of absorbing red light and infrared ray. A multijunction thin film solar cell taking the lamination structure as a bottom junction has higher conversion efficiency and lower production cost.

Description

technical field [0001] The invention relates to the technical field of photovoltaic solar cells, in particular to a laminated structure and a thin film solar cell comprising the laminated structure. Background technique [0002] In recent years, with the increasing shortage of energy, the development and utilization of solar energy has attracted more and more attention. Thin-film solar cells (also known as thin-film photovoltaic devices), especially hydrogenated amorphous silicon (a-Si:H) and nanocrystalline silicon (nano-crystalline Si, nc-Si) thin-film solar cells, are known for their large area and low cost. , easy laying and installation and other advantages have attracted widespread attention from the world. The photoelectric conversion unit of known thin-film solar cells is usually designed as a p-i-n structure, figure 1 A schematic diagram of a typical thin-film solar cell structure, such as figure 1 As shown, a thin film solar cell generally includes a glass subst...

Claims

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Application Information

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IPC IPC(8): H01L31/075H01L31/0248H01L31/076
CPCY02E10/50Y02E10/547Y02E10/548
Inventor 李沅民张群芳林朝晖
Owner GS SOLAR FU JIAN COMPANY
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