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Glass substrate with anti-reflection film

A technology of anti-reflection film and glass substrate, which is applied in the direction of instruments, optical components, coatings, etc., can solve the problems of white turbidity on the surface of anti-reflection film, achieve high photoelectric conversion efficiency, and suppress the effect of white turbidity

Active Publication Date: 2013-06-05
MITSUBISHI MATERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in the antireflection film composed of the silicon dioxide film formed on the surface using silicon alkoxide, components such as Na and Ca diffuse from the glass substrate as the bottom layer to the surface of the antireflection film, making the surface of the antireflection film cloudy. Therefore, there is a problem that it is not suitable for use in environments exposed to outside air, such as thin-film solar cells.

Method used

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  • Glass substrate with anti-reflection film

Examples

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Effect test

Embodiment 1

[0079] In Example 1, the AR film composition was prepared by diluting and mixing the AR film composition raw material 1 with IPA as a dispersion medium. A glass substrate with an AR film was produced by forming a film on a glass substrate with a refractive index of 1.55 using a composition for an AR film by a wet coating method, and firing the AR coating film at 200° C. for 30 minutes.

Embodiment 2

[0080] In Example 2, the AR film composition raw material 2 was diluted and mixed with ethanol as a dispersion medium. Furthermore, anisotropic colloidal silica particles (product name: ST-OUP) manufactured by Nissan Chemical Industries, Ltd. with an average particle diameter of 40 nm were added and mixed at a ratio of 10% by mass of the whole to prepare an AR film composition. A glass substrate with an AR film was produced by forming a film on a glass substrate with a refractive index of 1.55 using a composition for an AR film by a wet coating method, and firing the AR coating film at 200° C. for 30 minutes.

Embodiment 3

[0081] In Example 3, the composition for AR film composition raw material 4 was diluted and mixed with IPA as a dispersion medium, and the composition for AR film was produced. A glass substrate with an AR film was produced by forming a film on a glass substrate with a refractive index of 1.55 using a composition for an AR film by a wet coating method, and firing the AR coating film at 200° C. for 30 minutes.

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Abstract

An object of the invention is to use general-purpose glass, such as soda lime glass containing Na and Ca, as a high-durability glass substrate with an antireflection film. Namely, the object of the invention is to provide a glass substrate which provides an antireflection function to increase the transmission rate of incident light, and inhibit Na or Ca in the glass substrate from diffusing to the surface of the antireflection film in high-temperature high-humidity environment, thereby inhibiting nebula of the antireflection film. The glass substrate (1) provided by the invention is a glass substrate (2) with an anti-reflection film (3), and is characterized in that, the glass substrate (2) contains at least one alkali metal selected from Na and Ca; the anti-reflection film (3) contains SiO2 and has a reflection rate of 1.35-1.50; and a diffusion inhibition film (4) containing 1-12 atom% of P is arranged on the interface of the surface of the glass substrate (2) and the anti-reflection film (3).

Description

technical field [0001] The invention relates to a glass base material with an antireflection film. It further relates to a thin-film solar cell using the glass substrate with an antireflection film. Background technique [0002] Various surface treatment technologies have been developed to form a thin film on the surface of substrates such as glass or plastic to provide new functions, and an antireflection film composed of a silicon dioxide thin film formed on the surface using silicon alkoxide has been reported (Patent Document 1). [0003] Among them, thin-film solar cells are examples of applications requiring base materials for antireflection films having high antireflection properties. figure 1 An example of a schematic cross-sectional view of a thin-film solar cell using a substrate with an antireflection film is shown in . figure 1 It is an example of a superstrate-type thin-film solar cell. The thin-film solar cell 10 sequentially includes an antireflection film ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/34H01L31/048G02B1/11G02B1/111H01L31/0216H01L31/0392H01L31/04H01L51/44
CPCY02E10/50Y02E10/549
Inventor 日向野怜子泉礼子林芳昌山崎和彦
Owner MITSUBISHI MATERIALS CORP
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