Glass substrate with conductive film for solar cell
A technology for solar cells and glass substrates, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as poor sealing of sealing materials, leakage of iodine electrolyte, etc., to achieve excellent sealing, uniform power generation, and suppression of power generation fluctuations.
Inactive Publication Date: 2012-05-23
NIPPON ELECTRIC GLASS CO LTD
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- Description
- Claims
- Application Information
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Problems solved by technology
In addition, the conventional glass substrate with a conductive film has the problem of poor sealing properties of the sealing material. For example, in dye-sensitized solar cells, problems such as leakage of iodine electrolyte are prone to occur.
Method used
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Embodiment 1～5
[0075] On a glass substrate (250×250 mm) having the characteristics and thicknesses described in Table 1, an FTO film was formed by thermal CVD. Specifically, as a raw material (CH 3 ) 2 SnCl 2 、CF 3 COOH was first vaporized, and then blown to the glass substrate heated to the film formation temperature described in Table 1 to form a film, and a glass substrate with a conductive film was obtained. In order to make the film thickness of the FTO film approximately 1 μm, the film formation time was adjusted within a range of 2 to 5 minutes. Glass annealing was performed at 20° C. / min after film formation.
[0076] The obtained glass substrate with a conductive film was cut into 150×200 mm, and the amount of warpage deformation was measured. In Example 2, the amount of warping deformation was measured after polishing the surface opposite to the conductive film formation surface to a predetermined thickness.
[0077] The amount of warpage is measured by placing a glass substr...
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Abstract
Disclosed is a glass substrate with a conductive film, which does not easily cause fluctuations in power generation and can be excellently encapsulated with an encapsulation material when used in a thin solar cell. Specifically disclosed is a glass substrate with a conductive film for a solar cell, which is obtained by forming a conductive film on a glass substrate that has a thickness of 2 mm or less. The glass substrate with a conductive film for a solar cell is characterized in that the warping deformation (W) of the glass substrate represented by the formula below is 0.5 [mu]m / cm2 or less. W = D / L2 (D represents the maximum warp ([mu]m) of the glass substrate, and L represents the diagonal length (cm) of the glass substrate).
Description
technical field [0001] The present invention relates to a glass substrate with a conductive film for solar cells. Specifically, it relates to a glass substrate with a conductive film that is preferable as an electrode substrate used in a solar cell. Background technique [0002] In recent years, the demand for solar cells typified by monocrystalline silicon solar cells, polycrystalline silicon solar cells, or amorphous silicon solar cells has been increasing. These solar cells are mainly used for household power generation, commercial power generation, and the like. In addition, as other solar cells, CIS solar cells, CdTe solar cells, dye-sensitized solar cells, and organic thin-film solar cells have been developed, and these cells are also being put into practical use. [0003] In a solar cell, a glass substrate with a conductive film can be used as an electrode substrate. Here, as the glass substrate, soda lime glass is generally used because it is advantageous in terms...
Claims
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IPC IPC(8): H01L31/04C03C17/245
CPCC03C23/007Y02E10/542C03C2218/152H01L31/0392C03C2217/241H01L31/022475C03C17/2456H01L31/1884Y10T428/24355C03C17/2453C03C2217/211C03C2217/77
Inventor 泽田正弘永金知浩
Owner NIPPON ELECTRIC GLASS CO LTD