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Organic ultraviolet light detection device based on Cu (I) coordination compound triplet-state material

An organic ultraviolet light and triplet technology, which is applied in the fields of semiconductor/solid-state device manufacturing, organic chemistry, electric solid-state devices, etc. The problem of single selection of bulk materials, etc., achieves the effect of low price, simple preparation method and simple synthesis method.

Inactive Publication Date: 2011-04-27
JILIN NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] In order to solve the complex preparation process, high cost, and unsuitability for large-area applications of inorganic ultraviolet photodetectors in the background technology, and the selection of electron acceptor materials for reported organic ultraviolet photodetector devices is relatively single, and the electron mobility or electron transport performance is relatively poor. Low-level problem, the object of the present invention aims to apply a kind of Cu(I) complex triplet material with higher electron mobility in the organic ultraviolet photodetector device, as electron acceptor composition, its synthetic method is simple, Devices are easy to fabricate

Method used

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  • Organic ultraviolet light detection device based on Cu (I) coordination compound triplet-state material
  • Organic ultraviolet light detection device based on Cu (I) coordination compound triplet-state material
  • Organic ultraviolet light detection device based on Cu (I) coordination compound triplet-state material

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preparation example Construction

[0033] Preparation of Cu(I) complex triplet material: 446.5mg (1.0mmol) 1,2-bis(diphenylphosphino)benzene, 314.0mg (1.0mmol)[Cu(CH 3 EN) 4 ] BF 4 Dissolve in 20ml of dichloromethane, stir at room temperature for about 30 minutes, then add 358.4mg (1.0mmol) of 2,9-dimethyl-4,-diphenyl-1,10-phenanthroline, and continue stirring for one hour; Filter, concentrate the filtrate to about 5ml, add 5ml CH 3 CN, Growth of single crystals by ether diffusion method.

[0034] The structural formula of the described Cu(I) complex triplet material is:

[0035] [Cu(1,2-Bis(diphenylphosphino)benzene)(bathocuproine)]BF 4

[0036]

[0037] Among them: 1,2-Bis(diphenylphosphino)benzene is 1,2-bis(diphenylphosphino)benzene; bathocuproine is 2,9-dimethyl-4,7-diphenyl-1,10-phenanthrene Roline.

Embodiment 1

[0039] select figure 1 The device structure shown. In this embodiment, the electron donor layer m-MTDATA with a thickness of 30nm is firstly vacuum-deposited on the ITO conductive glass, and then the electron donor m-MTDATA and The mixed layer 3 of the electron acceptor Cu(I) complex has a thickness of 20nm, and the electron acceptor layer 4 is deposited on the mixed layer 3. The thickness of the Cu(I) complex triplet material is 40nm, and then the electron injection layer is deposited 5. The material is LiF with a thickness of 1nm; the last is the cathode, which is made of metal Al with a thickness of 120nm. All the above thin films are deposited by vacuum coating process. The thickness of the film is monitored by a film thickness monitoring instrument, and the external circuit is detected by KEITHLEY-2601.

[0040] Effect: with a light intensity of 0.691mW / cm 2 Irradiated by a UV lamp with a central wavelength of 365nm, the photocurrent response obtained at -10V is 248mA...

Embodiment 2

[0042] On the basis of Example 1, the electron donor layer TPD with a thickness of 20nm is vacuum deposited on the ITO conductive glass, and then on the electron donor layer 2, the electron donor TPD and electron acceptor Cu ( I) The mixed layer 3 of the complex has a thickness of 20nm, and other manufacturing conditions remain unchanged.

[0043] Effect: with a light intensity of 0.691mW / cm 2 Irradiated by a UV lamp with a central wavelength of 365nm, the photocurrent response obtained at -10V is 147mA / W, and the current density is 102μA / cm 2 .

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Abstract

The invention relates to an organic ultraviolet light detection device of a visible blind area, which takes Cu (I) coordination compound triplet-state materials with high electron transmission performance as electron acceptor components. The organic ultraviolet light detection device comprises an ITO (Indium Tin Oxid) conducting glass layer, an electron donor layer, a donor and acceptor material mixing layer, an electron acceptor layer, an electron injection layer (LiF (Lithium Fluoride)) and an Al cathode layer, wherein the donor and acceptor material mixing layer is formed by respectively mixing and depositing the Cu (I) coordination compound triplet-state materials with TPD and NPB (n-Propyl Bromide) or m-MTDATA; and the electron acceptor layer adopts the Cu (I) coordination compound triplet-state materials. The invention greatly improves the performance of the organic ultraviolet light detection device by using novel electron acceptor materials.

Description

technical field [0001] The invention belongs to the field of materials and devices of organic ultraviolet light detectors, and in particular relates to organic ultraviolet light detection using a Cu(I) complex triplet material with high electron transport performance as the visible blind area of ​​electron acceptor components devices. Background technique [0002] Compared with inorganic ultraviolet light detectors, organic ultraviolet light detectors have overcome the defects of complex process, high cost, and not suitable for large-area applications, and have attracted widespread attention in the industry. G.Yu et al. started research on organic detectors as early as the 1990s. Introduced polymers into the field of detectors. Conjugated polymers were found to be highly sensitive to UV-Vis light [1-4]. In 1994, the research group used MEH-PPV to make a dual-functional polymer device for luminescence and photodetector, and then developed an ultraviolet detection device us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/46H01L51/48C07F19/00C07F1/08C07F9/50
CPCY02E10/50Y02E10/549
Inventor 车广波徐春辉刘春波徐占林王庆伟李文连
Owner JILIN NORMAL UNIV
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