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Cadmium telluride power generation glass

A cadmium telluride and glass technology, which is applied in the field of solar cells, can solve the problems of affecting the coating of transparent oxide layer, low light transmission efficiency, and process limitation, and achieve excellent matching effect, high light transmittance, and industrial controllability high effect

Pending Publication Date: 2019-08-27
浙江力晟玻璃科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the light transmission efficiency of the traditional substrate glass itself is low, and it is not resistant to high temperature, and there are limitations in the manufacturing process, which affects the coating of the transparent oxide layer.

Method used

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  • Cadmium telluride power generation glass
  • Cadmium telluride power generation glass

Examples

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Effect test

Embodiment 1

[0022] as attached figure 1 As shown, a cadmium telluride power generation glass includes a glass substrate 1, a transparent oxide layer 2, a window layer 3, an absorption layer 4, and a back contact electrode 5 from bottom to top; the glass substrate 1 is borosilicate glass with a thickness of 2mm , the outer surface of the borosilicate glass is coated with an anti-reflection film 9 with a thickness of 50nm and a refractive index of 1.3, and the transparent oxide layer is Sn-doped In 2 o 3 The window layer is a CdS layer with a thickness of 0.4 μm, the absorber layer is a CdTe layer with a thickness of 3 μm, and the back contact electrode is a carbon nanotube deposited with metal Al, wherein the power generation glass is on the glass substrate 1, transparent oxide layer 2, After the window layer 3 and the absorbing layer 4 are sequentially deposited to form thin films, the Ar-CdCl 2 Heat treatment, the temperature of heat treatment is 380°C. The back side of the back conta...

Embodiment 2

[0024] A cadmium telluride power generation glass, comprising a glass substrate, a transparent oxide layer, a window layer, an absorbing layer, and a back contact electrode from bottom to top; the glass substrate is borosilicate glass with a thickness of 3 mm, and the outer surface of the borosilicate glass is coated with Anti-reflection film with a thickness of 80mm and a refractive index of 1.5, and the transparent oxide layer is Sn-doped In 2 o 3 film, with SnO deposited between the transparent oxide layer and the window layer 2 thin film, SnO 2 and In 2 o 3 The weight ratio is 1:9, the window layer is a CdS layer with a thickness of 0.4 μm, the absorber layer is a CdTe layer with a thickness of 3 μm, and the back contact electrode is a carbon nanotube deposited with metal Al. Among them, the power generation glass is on a glass substrate, After the transparent oxide layer, the window layer and the absorbing layer were deposited sequentially to form a thin film, the Ar-...

Embodiment 3

[0026] A cadmium telluride power generation glass, comprising a glass substrate, a transparent oxide layer, a window layer, an absorbing layer, and a back contact electrode from bottom to top; the glass substrate is borosilicate glass with a thickness of 2.5 mm, and the outer surface of the borosilicate glass is coated with There is a hydrophobic layer, and the transparent oxide layer is Sn-doped In 2 o 3 film, with SnO deposited between the transparent oxide layer and the window layer 2 thin film, SnO 2 and In 2 o 3 The weight ratio is 1:8.5, the window layer is a CdS layer with a thickness of 0.45 μm, the absorber layer is a CdTe layer with a thickness of 4 μm, and the back contact electrode is a carbon nanotube deposited with metal Al. Among them, the power generation glass is on a glass substrate, After the transparent oxide layer, the window layer and the absorbing layer were deposited sequentially to form a thin film, the Ar-CdCl 2 Heat treatment, the temperature of...

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Abstract

The present invention relates to the field of solar cells, in particular to cadmium telluride power generation glass. The cadmium telluride power generation glass successively comprises a glass substrate, a transparent oxide layer, a window layer, an absorption layer and a back contact electrode from bottom to top. The glass substrate is the borosilicate glass with a thickness of 2-3mm; the transparent oxide layer is a Sn-doped In<2>O<3> film; the window layer is the CdS layer with a thickness of 0.4-0.5mum; and the absorption layer is a CdTe layer with a thickness of 3-5mum. For the cadmium telluride power generation glass proposed by the invention, the glass substrate has high light transmittance; the high temperature resistance is good; and the transparent oxide layer with better lighttransmittance is cooperatively used so that the photoelectric conversion efficiency of the power generation glass is greatly improved.

Description

technical field [0001] The invention relates to the field of solar cells, in particular to a cadmium telluride power generation glass. Background technique [0002] With the global warming, the deterioration of the ecological environment and the shortage of conventional energy, more and more countries have begun to vigorously develop solar energy utilization technology. Solar photovoltaic power generation is a zero-emission clean energy, which has the advantages of safety, reliability, no noise, no pollution, short construction period, and long service life, so it has attracted much attention. Cadmium telluride is a P-type semiconductor material with a direct band gap. It is generally used as an absorber layer in solar cells. Because its direct band gap is 1.45eV, it is most suitable for photoelectric energy conversion, so it makes telluride with a thickness of about 2 microns The optical absorption of 90% of the cadmium absorber layer above its bandgap is possible, allowin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0216H01L31/0224H01L31/0392H01L31/052H01L31/073
CPCH01L31/073H01L31/03925H01L31/022466H01L31/022425H01L31/02168H01L31/02167H01L31/052Y02E10/543
Inventor 邵伟明
Owner 浙江力晟玻璃科技有限公司
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