TW201412669A - High transparency typed single-silver low-emission coated glass - Google Patents

Abstract

The present invention relates to a high transparency typed single-silver low-emission coated glass, which includes: a glass substrate and a functional film deposited on the glass substrate. The functional film further is sequentially provided with a first dielectric layer, a second dielectric layer, a functional Ag layer, a third dielectric layer, a fourth dielectric layer and a fifth dielectric layer on the glass substrate-, wherein the first dielectric layer is an NbOx layer, the second dielectric layer is a ZnAlOx layer, the functional Ag layer is an Ag layer, the third dielectric layer is an AZO layer, the fourth dielectric layer is a ZnSnO3 layer, and the fifth dielectric layer is an Si3N4 layer. The dielectric layer uses a novel ceramic material AZO as a dielectric layer backing the silver layer to optimize the film architecture. Thereby, at the condition of guaranteeing the low emission rate, this invention can obtain the transparency rate, glass permeability and nature, which are equal to or are higher than those of general glass having same thickness, and also can have the effects of excellent thermal insulation and thermal keeping property.

Description

High permeability single silver low-emission coated glass

The invention relates to the technical field of architectural glass, in particular to a high-permeability single-silver low-emission coated glass.

At present, ordinary single-silver low-emission coating products on the market, due to the use of a metal film layer as a silver layer protective layer, tend to have low light transmission and cannot meet customer needs. On the other hand, the use of a metal layer protective layer tends to increase the absorption of light by the functional film layer, so that the glass of the curtain wall is poor in transparency and aesthetics is not accepted by the mainstream market.

The technical object of the present invention is to provide a high-permeability single-silver low-emission coated glass in the prior art that the conventional low-emission coated glass has low visible light transmittance and cannot meet market demands.

A first object of the present invention is to provide a high-permeability single-silver low-emission coated glass comprising a glass substrate and a functional film system deposited on the glass substrate, The functional film system further includes a first dielectric layer, a second dielectric layer, a functional Ag layer, a third dielectric layer, a fourth dielectric layer, and a fifth dielectric layer sequentially deposited on the glass substrate.

According to a second object of the present invention, the first dielectric layer is NbO _x (0<x 2.5) layer, the second dielectric layer is ZnAlO _x (0 x 2) The layer, the functional Ag layer is an Ag layer, the third dielectric layer is an AZO layer, the fourth dielectric layer is a ZnSnO ₃ layer, and a fifth dielectric layer is a Si ₃ N ₄ layer.

According to a third object of the present invention, the first dielectric layer is a Nb ₂ O ₅ layer.

According to a fourth object of the present invention, the second dielectric layer is an Al-doped ZnO layer.

In summary, the product produced by the present invention is made of ceramic material AZO. The post-silver dielectric layer replaces the metal protective layer in the existing product, and uses a new material with high refractive index to offset the absorption of the silver layer, so that the light transmittance of the product of the present invention can be the same as that of the original glass plate of the same thickness, or even Higher transmittance, and the product's appearance is clear and transparent, and it can also ensure good heat insulation and heat preservation effect, in line with consumers' demand for natural environmental protection.

For your convenience, the review committee can make a further understanding and understanding of the purpose, technical features and effects of the present invention. The embodiments are combined with the drawings, and the details are as follows:

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no

〔this invention〕

1‧‧‧High permeability single silver low-emission coated glass

11‧‧‧ glass substrate

12‧‧‧ functional film

121‧‧‧First dielectric layer

122‧‧‧Second dielectric layer

123‧‧‧ functional Ag layer

124‧‧‧ Third dielectric layer

125‧‧‧fourth dielectric layer

126‧‧‧ fifth dielectric layer

Fig. 1 is a schematic view showing the structure of a high-permeability single-silver low-emission coated glass according to the present invention.

In order to clarify the technical solutions and technical objects of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Please refer to FIG. 1. FIG. 1 is a schematic view showing the structure of a highly transparent single-silver low-emission coated glass according to the present invention. The high-permeability single-silver low-emission coated glass 1 includes a glass substrate 11 and a functional film layer 12 deposited on the glass substrate 11. The functional film layer 12 further includes a first dielectric layer 121, a second dielectric layer 122, a functional Ag layer 123, a third dielectric layer 124, and a fourth dielectric layer 125 which are vertically stacked on the glass substrate 11 in this order. And a fifth dielectric layer 126.

In order to achieve the object of the present invention, as a specific embodiment, in the present invention, the first dielectric layer 121 is NbO _x (0<x) 2.5) layer, the second dielectric layer 122 is ZnAlO _x (0 x 2) The layer, the functional Ag layer 123 is an Ag layer, the third dielectric layer 124 is an AZO layer, the fourth dielectric layer 125 is a ZnSnO ₃ layer, and the fifth dielectric layer 126 is a Si ₃ N ₄ layer.

Obviously, in the present invention, the functional Ag layer 123 is protected by using the AZO layer as the third dielectric layer 124, which increases the transmittance of visible light and prevents oxidation of the functional Ag layer 123.

Please continue to refer to FIG. 1 to detail the high permeability single silver low-emission coated glass of the present invention. Preparation method of 1.

For the first dielectric layer 121: a ceramic yttria target by rotating an alternating current cathode is sputter coated in an argon atmosphere, the volume ratio of oxygen to argon is 1:10; for the second dielectric layer 122: by rotating the alternating cathode zinc The aluminum target is sputter coated in an oxygen and argon atmosphere, wherein the mass ratio Zn:Al=98:2, the volume ratio of oxygen to argon is 9:14; for the functional Ag layer 123: the silver target through the DC planar cathode is in the argon Sputter coating in a gas atmosphere; for the third dielectric layer 124: sputter coating in an oxygen and argon atmosphere by rotating the AZO target of the alternating current cathode, the volume ratio of oxygen to argon is 9:100; for the fourth dielectric layer 125: Sputter coating by rotating the zinc cathode target of the AC cathode in an oxygen and argon atmosphere, wherein the mass ratio Zn:Sn=50:50, the volume ratio of oxygen to argon is 3:2; and for the fifth dielectric layer 126: The tantalum aluminum target of the rotating AC cathode was sputtered in a nitrogen and argon atmosphere in which the mass ratio Si:Al=92:8 and the volume ratio of nitrogen to argon were 2:1.

The invention adopts a magnetron sputtering coating machine to perform glass coating. The magnetron sputtering coating machine comprises 19 alternating current rotating cathodes and 7 direct current plane cathodes. The invention adopts the process parameters listed in the following table, and uses 6 The alternating-rotating double cathode and one direct-current DC cathode are used to produce the light-transmissive single-silver low-emission coated glass of the present invention. The process parameters and the position of the target are listed as follows:

In the table, 1#, 2# target plating first dielectric layer 121, 3# target plating second dielectric layer 122, 4# target plating function Ag layer 123, 5# target plating third dielectric layer 124, 6# The target is plated with a fourth dielectric layer 125, and the 7# target is plated with a fifth dielectric layer 126. The glass substrate is subjected to cleaning, drying, and pre-vacuum transition before coating.

After coating, the optical properties of the product are as follows: glass visible light transmittance T = 90.8%; visible glass surface reflectance = 4.9%; visible glass surface color coordinates a * value = -2.5; visible glass surface color coordinates b * value = -5.6; visible light Film surface reflectance = 4.8%; visible light film color coordinates a* = 3.8; visible light film color coordinates b * = -7.4; and glass emissivity E = 0.045.

The foregoing is only a few preferred embodiments of the present invention, but the scope of the claimed invention is not limited thereto, and the technical contents disclosed in the present invention are disclosed by those skilled in the art. Equivalent changes that can be easily considered are within the scope of protection of the present invention.

1‧‧‧High permeability single silver low-emission coated glass

11‧‧‧ glass substrate

12‧‧‧ functional film

121‧‧‧First dielectric layer

122‧‧‧Second dielectric layer

123‧‧‧ functional Ag layer

124‧‧‧ Third dielectric layer

125‧‧‧fourth dielectric layer

126‧‧‧ fifth dielectric layer

Claims (4)

A high-permeability single-silver low-emission coated glass, characterized in that the high-permeability single-silver low-emission coated glass comprises a glass substrate, and a functional film system deposited on the glass substrate, the functional film system further comprising A first dielectric layer, a second dielectric layer, a functional Ag layer, a third dielectric layer, a fourth dielectric layer, and a fifth dielectric layer are sequentially deposited on the glass substrate. The high permeability single-silver low-emission coated glass according to claim 1, wherein the first dielectric layer is an NbO _x layer, the second dielectric layer is a ZnAlO _x layer, and the functional Ag layer is Ag. The layer, the third dielectric layer is an AZO layer, the fourth dielectric layer is a ZnSnO ₃ layer, and the fifth dielectric layer is a Si ₃ N ₄ layer. The high-permeability single-silver low-emission coated glass according to claim ₂ , wherein the first dielectric layer is a Nb ₂ O ₅ layer. The high-permeability single-silver low-emission coated glass according to claim 2, wherein the second dielectric layer is an Al-doped ZnO layer.