An ultra-thick energy-saving cadmium telluride power generation glass

Abstract

This utility model relates to the field of power generation glass technology, specifically to an ultra-thick energy-saving cadmium telluride power generation glass, comprising an ultra-thick glass substrate layer, a functional film layer, an energy-saving enhancement layer, and a sealing layer; the ultra-thick glass substrate layer has a thickness of 5-12mm, and its inner surface is provided with a stepped groove structure; the functional film layer is sequentially stacked in the stepped groove of the ultra-thick glass substrate layer, including a TCO transparent conductive layer, a CdS buffer layer, a CdTe absorption layer, and a back contact layer; the energy-saving enhancement layer is disposed on the outside of the ultra-thick glass substrate layer, and is composed of a low-emissivity (Low-E) film and a vacuum insulation layer; the sealing layer covers the outside of the ultra-thick glass substrate layer, the functional film layer, and the energy-saving enhancement layer. The ultra-thick glass substrate layer has a thickness of 5-12mm, which increases the overall thickness and improves the strength, and the groove structure reduces the stress concentration of the functional film layer, thereby reducing the risk of damage to the power generation glass and improving its safety.

Description

Technical Field

[0001] This utility model relates to the field of power generation glass technology, and in particular to an ultra-thick energy-saving cadmium telluride power generation glass. Background Technology

[0002] Cadmium telluride photovoltaic glass, as a new type of energy building material, has been widely used in the field of building-integrated photovoltaics. Currently, to increase light transmittance, solar cell glass uses an AR (autoclave-reflective film) coating on its surface. However, AR is not wear-resistant or corrosion-resistant, resulting in a short lifespan and limited practical application.

[0003] The patent application with publication number CN218939691U discloses cadmium telluride power generation glass, which increases the thickness of the DLC film and increases the dry abrasion resistance to more than 30,000 times, thereby improving the surface abrasion resistance of the battery and increasing the safety of the battery.

[0004] However, in the existing technology, the thin glass substrate has a low thickness and poor impact resistance. In the application of high-rise building curtain walls, it is prone to cracking due to wind pressure and temperature stress, resulting in low safety. Utility Model Content

[0005] The purpose of this invention is to provide an ultra-thick energy-saving cadmium telluride power generation glass, which solves the problem in the prior art that thin glass substrates have low thickness, poor impact resistance, and are prone to cracking due to wind pressure and temperature stress in high-rise building curtain wall applications, resulting in low safety.

[0006] To achieve the above objectives, this utility model provides an ultra-thick energy-saving cadmium telluride power generation glass, comprising an ultra-thick glass substrate layer, a functional film layer, an energy-saving enhancement layer, and a sealing layer; the ultra-thick glass substrate layer has a thickness of 5-12 mm, and its inner surface is provided with a stepped groove structure; the functional film layer is sequentially stacked in the stepped groove of the ultra-thick glass substrate layer, including a TCO transparent conductive layer, a CdS buffer layer, a CdTe absorption layer, and a back contact layer; the energy-saving enhancement layer is disposed on the outside of the ultra-thick glass substrate layer and is composed of a low-emissivity (Low-E) film and a vacuum insulation layer; the sealing layer covers the outside of the ultra-thick glass substrate layer, the functional film layer, and the energy-saving enhancement layer.

[0007] The stepped grooves are spaced apart along the length of the ultra-thick glass substrate layer, with a groove depth of 0.5-1mm. Supporting bosses are formed between adjacent grooves, and the functional film layer is broken at the supporting bosses to form independent power generation units.

[0008] The low-emissivity film of the energy-saving enhancement layer is an indium oxide film doped with tin with a thickness of 50-100 nm, and the vacuum insulation layer has a thickness of 2-5 mm and is filled with nano-silica aerogel.

[0009] The ultra-thick glass substrate is made of borosilicate tempered glass, and its inner surface is roughened at the nanoscale, with a roughness Ra of 0.1-0.3 μm.

[0010] The sealing layer is made of thermally conductive silicone. It covers the outer side of the ultra-thick glass substrate, the functional film layer, and the energy-saving enhancement layer, and seals the gaps formed by their connection.

[0011] Beneficial effects:

[0012] This invention relates to an ultra-thick energy-saving cadmium telluride power generation glass. The ultra-thick glass substrate layer is made of 5-12mm borosilicate tempered glass with stepped grooves on the inner side. The groove depth is 0.5-1mm, and supporting protrusions are formed between adjacent grooves. This increases the overall thickness and improves strength, while also reducing stress concentration in the functional film layer through the groove structure. The energy-saving enhancement layer is composited on the outer side of the ultra-thick glass substrate layer and consists of an ITO low-emissivity film (50-100nm) and a vacuum insulation layer (2-5mm, filled with nano-aerogel). The low-emissivity film reflects infrared radiation, and the vacuum layer blocks heat conduction, significantly improving the heat insulation performance and further enhancing the structural strength of the power generation glass, reducing the risk of damage, and thus improving the safety of the power generation glass. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the structure of the ultra-thick energy-saving cadmium telluride power generation glass of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the ultra-thick glass substrate layer of this utility model.

[0016] Figure 3 This is a cross-sectional view of the ultra-thick energy-saving cadmium telluride power generation glass of this utility model.

[0017] Figure 4 This is the utility model Figure 3 Enlarged view of the local structure at point A.

[0018] 1-Ultra-thick glass substrate layer, 101-Stepped groove, 102-Supporting boss, 2-Functional film layer, 201-TCO transparent conductive layer, 202-CdS buffer layer, 203-CdTe absorption layer, 204-Back contact layer, 3-Energy-saving enhancement layer, 301-Low-emissivity film, 302-Vacuum insulation layer, 4-Sealing layer. Detailed Implementation

[0019] Please see Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the structure of the ultra-thick energy-saving cadmium telluride power-generating glass of this utility model. Figure 2 This is a schematic diagram of the structure of the ultra-thick glass substrate layer of this utility model. Figure 3 This is a cross-sectional view of the ultra-thick energy-saving cadmium telluride power-generating glass of this utility model. Figure 4 This is the utility model Figure 3 Enlarged view of the local structure at point A.

[0020] This utility model provides an ultra-thick energy-saving cadmium telluride power generation glass, comprising an ultra-thick glass substrate layer 1, a functional film layer 2, an energy-saving enhancement layer 3, and a sealing layer 4; the inner surface of the ultra-thick glass substrate layer 1 is provided with a stepped groove structure 101; the functional film layer 2 includes a TCO transparent conductive layer 201, a CdS buffer layer 202, a CdTe absorption layer 203, and a back contact layer 204; the energy-saving enhancement layer 3 is composed of a low-emissivity (Low-E) film and a vacuum insulation layer 302.

[0021] In this embodiment, the ultra-thick glass substrate 1 is made of 5-12mm borosilicate tempered glass, with stepped grooves 101 on the inner side, the groove depth being 0.5-1mm, and supporting protrusions 102 formed between adjacent grooves. This increases the overall thickness and improves strength, while also reducing stress concentration in the functional film layer 2 through the groove structure. The energy-saving enhancement layer 3 is composited on the outer side of the ultra-thick glass substrate 1 and consists of an ITO low-emissivity film 301 (50-100nm) and a vacuum insulation layer 302 (2-5mm, filled with nano-aerogel). The low-emissivity film 301 reflects infrared radiation, and the vacuum layer blocks heat conduction, significantly improving the heat insulation performance, further enhancing the structural strength of the power generation glass, reducing the risk of damage to the power generation glass, and thus improving the safety of the power generation glass.

[0022] Furthermore, the stepped grooves 101 are spaced apart along the length of the ultra-thick glass substrate layer 1, with a groove depth of 0.5-1mm. Supporting protrusions 102 are formed between adjacent grooves, and the functional film layer 2 is broken at the supporting protrusions 102 to form independent power generation units.

[0023] In this embodiment, the functional film layer 2 is stacked in the stepped groove 101, including the TCO transparent conductive layer, the CdS buffer layer 202, the CdTe absorption layer and the back contact layer 204. It is disconnected at the support boss 102 to form an independent power generation unit, avoiding the overall efficiency reduction caused by local shadows and improving the working efficiency of the power generation glass.

[0024] Furthermore, the low-emissivity film 301 of the energy-saving enhancement layer 3 is an indium oxide film doped with tin with a thickness of 50-100 nm, and the vacuum insulation layer 302 has a thickness of 2-5 mm and is filled with nano-silica aerogel.

[0025] In this embodiment, the low-emissivity film 301 reflects infrared radiation, and the vacuum layer blocks heat conduction, significantly improving the thermal insulation performance.

[0026] Furthermore, the ultra-thick glass substrate 1 is made of borosilicate tempered glass, and its inner surface is roughened at the nanoscale, with a roughness Ra of 0.1-0.3 μm.

[0027] In this embodiment, the ultra-thick glass substrate 1 is made of borosilicate tempered glass, and its inner surface is roughened at the nanoscale with a roughness Ra of 0.1-0.3 μm, which can enhance the adhesion with the functional film layer 2.

[0028] Furthermore, the sealing layer 4 is made of thermally conductive silicone. The sealing layer 4 covers the outer side of the ultra-thick glass substrate layer 1, the functional film layer 2 and the energy-saving enhancement layer 3, and seals the gaps formed by their connection.

[0029] In this embodiment, the sealing layer 4 can enhance the connection between the ultra-thick glass substrate layer 1, the functional film layer 2, and the energy-saving enhancement layer 3, and can seal the gaps between the various film layers. At the same time, the sealing layer 4 is made of silicone-infused material, which can provide a certain heat dissipation effect for the power-generating glass.

[0030] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments, and equivalent variations made in accordance with the claims of this application, still fall within the scope of this application.

Claims

1. An ultra-thick energy-saving cadmium telluride power-generating glass, characterized in that, The device comprises an ultra-thick glass substrate, a functional film layer, an energy-saving enhancement layer, and a sealing layer. The ultra-thick glass substrate has a thickness of 5-12 mm and its inner surface has a stepped groove structure. The functional film layer is sequentially stacked within the stepped groove of the ultra-thick glass substrate and includes a TCO transparent conductive layer, a CdS buffer layer, a CdTe absorption layer, and a back contact layer. The energy-saving enhancement layer is disposed on the outside of the ultra-thick glass substrate and is composed of a low-emissivity (Low-E) film and a vacuum insulation layer. The sealing layer covers the outside of the ultra-thick glass substrate, the functional film layer, and the energy-saving enhancement layer.

2. The ultra-thick energy-saving cadmium telluride power-generating glass as described in claim 1, characterized in that, The stepped grooves are spaced apart along the length of the ultra-thick glass substrate layer, with a groove depth of 0.5-1mm. Supporting protrusions are formed between adjacent grooves, and the functional film layer is broken at the supporting protrusions to form independent power generation units.

3. The ultra-thick energy-saving cadmium telluride power-generating glass as described in claim 2, characterized in that, The low-emissivity film of the energy-saving enhancement layer is an indium oxide film doped with tin, with a thickness of 50-100 nm. The vacuum insulation layer has a thickness of 2-5 mm and is filled with nano-silica aerogel.

4. The ultra-thick energy-saving cadmium telluride power-generating glass as described in claim 3, characterized in that, The ultra-thick glass substrate is made of borosilicate tempered glass, and its inner surface is roughened at the nanoscale, with a roughness Ra of 0.1-0.3 μm.

5. The ultra-thick energy-saving cadmium telluride power-generating glass as described in claim 4, characterized in that, The sealing layer is made of thermally conductive silicone. The sealing layer covers the outer side of the ultra-thick glass substrate layer, the functional film layer and the energy-saving enhancement layer, and seals the gaps formed by their connection.

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