JPH0632303B2 - Method for forming electroluminescence panel - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electroluminescence panel used for a flat display and the like and a method for forming the same.

2. Description of the Related Art Conventionally, electroluminescence panels have been widely used for computer terminals and liquid crystal backlights.

These electroluminescent panels have been formed on a substrate by a sputtering method, a vapor deposition method, a MOCVD method or the like. It was also formed by a screen printing method or the like.

Problems to be Solved by the Invention The above-described conventional method for forming an electroluminescence panel has poor productivity because it is carried out in a vacuum vessel, and continuous operation is difficult, or a very expensive production facility. Was needed. In addition, the size of the product is regulated by the size of the vacuum container, which makes it difficult to manufacture a large area. Furthermore, although the screen printing method has good productivity and can easily manufacture a large area,
It has a problem that a transparent electroluminescence panel cannot be formed.

Means for Solving the Problems In order to solve the above problems, the present invention provides an organozinc compound having at least one zinc-sulfur bond in the interior thereof with at least one manganese-sulfur bond as a dopant. Forming a mixture with an organic manganese compound having on a substrate, by thermal decomposition in an oxidizing atmosphere,
Alternatively, it is formed by firing in an inert atmosphere after thermal decomposition.

Examples of the organozinc compound having at least one zinc-sulfur bond inside it that can be used in the present invention include various zinc mercaptides, various thiocarboxylic acids, and zinc salts of dithiocarboxylic acids.

Examples of the organic manganese compound having at least one manganese-sulfur bond inside as a doping agent include manganese mercaptide, thiocarboxylic acid salt, and dithiocarboxylic acid salt.

Any substrate can be selected as long as it can withstand the thermal decomposition temperature. Usually pyrolysis temperature is 320-450 ℃
Since it is about the level, inexpensive soda lime glass or the like can be sufficiently used.

The thermal decomposition can be carried out in the air or in an oxidizing atmosphere such as an oxygen atmosphere to completely decompose organic components such as carbon and hydrogen. Also, when the temperature is raised to a high temperature to increase the degree of sintering, the zinc sulfide thin film is oxidized in an oxidizing atmosphere,
Since it becomes a thin film containing an oxide, it is effective to perform baking in an inert atmosphere after thermal decomposition.

By using the means of the present invention, it is possible to form an electroluminescence panel without using a vacuum container, which has been a problem of the conventional method, and therefore, in terms of manufacturing, productivity is improved, and a large area is obtained. Can be easily manufactured, and a transparent electroluminescence panel can be formed.

EXAMPLES Hereinafter, the present invention will be described with reference to the drawings by examples.

<Example 1> As shown in the figure, a substrate in which zinc lauryl mercaptide and manganese octyl mercaptide are mixed and dissolved in tetralin and a transparent electrode 2 is provided on a Pyrex glass 1 and a dielectric layer 3 is provided thereon. Apply it on 4 with a spinner,
After drying at 150 ° C and evaporating the solvent, 450 in the air
Pyrolysis is performed at 1 ° C. for 1 hour to form a sulfide 5. A dielectric layer 6 is provided thereon, and an aluminum electrode 7 is provided. Then, as a result of applying an AC voltage between the transparent electrode 2 and the aluminum electrode 7, yellow-orange emission peculiar to an electroluminescence panel in which manganese is doped in zinc sulfide was observed.

<Example 2> Zinc lauryl mercaptide and manganese octyl mercaptide were mixed and dissolved in tetralin, and a transparent electrode was provided on Pyrex glass, and a substrate having a dielectric layer thereon was coated with a spinner to form 150. After drying at ℃ and volatilizing the solvent, it is thermally decomposed in the air at 450 ℃ for 30 minutes. Then, it is fired in a nitrogen stream at 650 ° C. for 1 hour to form a sulfide. A dielectric layer is provided thereon and an aluminum electrode is provided. Then, as a result of applying an AC voltage between the transparent electrode and the aluminum electrode, yellow-orange emission peculiar to an electroluminescence panel in which manganese is doped in zinc sulfide was observed.

EFFECTS OF THE INVENTION As described above, the electroluminescence panel and the method for forming the same according to the present invention include an organometallic compound having at least one zinc-sulfur bond in its interior and at least one sulfur-containing bond in the organozinc compound. By forming a mixture with a compound on a substrate and forming it by thermal decomposition in an oxidizing atmosphere, or by forming it by firing in an inert atmosphere after thermal decomposition, a sputtering method,
The productivity is improved as compared with the vapor deposition method and the MOCVD method, a very large amount of equipment is not required, a large area can be easily manufactured, and a transparent electroluminescence panel is formed. Can be done, and its practical effect is great.

[Brief description of drawings]

FIG. 1 is a sectional view showing the structure of an electroluminescence panel according to an embodiment of the present invention. 1 ... Pyrex glass, 2 ... Transparent electrode, 3, 6 ...
… Dielectric layer, 4 …… Substrate, 5 …… Sulfide, 7 …… Aluminum electrode.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP 62-243286 (JP, A) JP 62-243285 (JP, A) JP 61-195585 (JP, A) JP 60- 124395 (JP, A)

Claims (2)

[Claims] 1. A mixture of an organozinc compound having at least one zinc-sulfur bond in the interior thereof and an organomanganese compound having at least one manganese-sulfur bond therein as a dopant is formed on a substrate, A method for forming an electroluminescence panel, which is characterized in that it is formed by thermal decomposition in an oxidizing atmosphere. 2. A mixture of an organozinc compound having at least one zinc-sulfur bond in its interior with an organomanganese compound having at least one manganese-sulfur bond in its interior as a dopant is formed on a substrate, A method for forming an electroluminescence panel, which comprises performing pyrolysis in an oxidizing atmosphere and then baking the same in an inert atmosphere.