CN105552242A - Preparation method of double-charge injection layer for semiconductor device - Google Patents

Preparation method of double-charge injection layer for semiconductor device Download PDF

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CN105552242A
CN105552242A CN201610062055.4A CN201610062055A CN105552242A CN 105552242 A CN105552242 A CN 105552242A CN 201610062055 A CN201610062055 A CN 201610062055A CN 105552242 A CN105552242 A CN 105552242A
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semiconductor device
solution
preparation
double
substrate
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CN105552242B (en
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廖良生
王照奎
王波
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Suzhou University
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Suzhou University
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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00Processes for applying liquids or other fluent materials
    • B05D1/40Distributing applied liquids or other fluent materials by members moving relatively to surface
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/10OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/17Carrier injection layers
    • H10K50/171Electron injection layers
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00Manufacture or treatment specially adapted for the organic devices covered by this subclass

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electroluminescent Light Sources (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

The invention provides a preparation method of a double-charge injection layer for a semiconductor device, which comprises the following steps: mixing HAT-CN and F4-TCNQ in a mass ratio of 1 (2-6) and dissolving in acetone to obtain a solution A after complete dissolution; mixing CuPc and MoO3Respectively dissolving the raw materials in water to prepare aqueous solutions, respectively stirring the aqueous solutions in an atmospheric environment, and mixing the aqueous solutions according to a volume ratio of 1:1 to obtain a solution B; carrying out ozone treatment on a substrate to be coated, then coating the solution A on the surface of the substrate, and annealing at the temperature of 60 ℃ for 15min, wherein an oily film is formed on the surface of the substrate; and coating the solution B on the surface of the oily film, and annealing at the temperature of 150 ℃ for 15min, wherein an electric double injection layer for a semiconductor device is formed on the surface of the ITO substrate. The preparation method has the advantages of simple and convenient preparation process, low equipment requirement, capability of performing preparation operation under atmospheric conditions and low cost.

Description

A kind of preparation method of the Double-charge implantation layer for semiconductor device
Technical field
The invention belongs to technical field of semiconductor device, particularly relate to a kind of preparation method of the Double-charge implantation layer for semiconductor device.
Background technology
In the preparation of organic semiconductor function element, how to improve the work function of substrate surface, thus reduce the potential barrier injected in hole, be all the hot issue of research all the time.Traditional way is all realize this purpose by preparation transition metal oxide film, and take the mode of vacuum evaporation to complete the deposition of film often, but this kind of requirement of membrane deposition method to equipment is high, energy consumption is large, stock utilization is low, human users requires harshness, and simultaneously this kind of method has limited to preparation and the development of the practical device of large area organic semiconductor.Along with the fast development of organic semiconductor device preparation technology, the technique of its wet-layer preparation is arisen at the historic moment.But also still there is a lot of problem in the method that this kind prepares organic semiconductor device, and the problem of dissolving each other when wherein most problem demanding prompt solution is exactly the preparation of adjacent organic thin film layer.
The present invention's design have employed the mode of oily solution rotary coating film forming alternate with aqueous solution rotary coating, forms Double-charge implantation layer, solves many weak points of above-mentioned existence.
Summary of the invention
the technical problem solved:the shortcoming high for the requirement of existing membrane deposition method to equipment, energy consumption is large, stock utilization is low and adjacent organic thin film layer easily dissolves each other, the invention provides a kind of preparation method of the Double-charge implantation layer for semiconductor device.
technical scheme:for a preparation method for the Double-charge implantation layer of semiconductor device, the step of the method is as follows:
(1) by HAT-CN and F4-TCNQ with mass ratio be 1:(2-6) ratio mixing be dissolved in acetone, until completely dissolved leave standstill 1-2h, obtain solution A, wherein in solution A, the total concentration of HAT-CN and F4-TCNQ is 2mg/mL;
(2) by CuPc and MoO 3soluble in waterly respectively make the aqueous solution, stir 10h respectively under atmospheric environment after, mix with the ratio of volume ratio 1:1, leave standstill 1-2h, obtain solution B, wherein CuPc and MoO 3the concentration of the aqueous solution is respectively 4mg/mL and 1mg/mL;
(3) substrate to be coated is positioned over ozone treatment 20min in UV ozone machine, then the solution A obtained in step (1) is used to be coated on substrate surface uniformly by the method for rotary coating, and the 15min that anneals at the temperature of 60 DEG C, now substrate surface forms one deck oiliness film;
(4) solution B obtained in step (2) is coated on by the method for rotary coating the oiliness film surface that the 3rd step obtains uniformly, and the 15min that anneals at the temperature of 150 DEG C, now ITO substrate surface defines the film of oiliness-water-based Dual Implantations layer, is the Double-charge implantation layer for semiconductor device.
In step (1) described above by HAT-CN and F4-TCNQ with mass ratio be 1:4 ratio mixing be dissolved in acetone.
After dissolving completely in step (1) described above, time of repose is 1.5h.
In step (2) described above, time of repose is 1.5h.
Substrate in step (3) described above is monocrystalline silicon substrate or ito glass substrate.
beneficial effect:the preparation method of a kind of Double-charge implantation layer for semiconductor device provided by the invention, has following beneficial effect:
1. manufacture craft of the present invention is simple and convenient, and equipment requirement is low, can be prepared operation in atmospheric conditions, needn't adopt expensive vacuum evaporation equipment, with low cost, greatly reduces the production cost of semiconductor device, is convenient to the large-scale manufacturing;
2. the present invention adopts water as solvent, and environmental protection is pollution-free, meets environmentally friendly material preparation process;
3. the material dissolves that the present invention is used is strong, and film thickness regulates and controls by the factor such as speed, time of solution concentration, rotary coating, uniformity and planarization good, film quality is high, effectively can modify substrate surface defect;
4. the two hole injection layer of the present invention's oiliness-water-based used, substantially increase the injection efficiency in hole, and oiliness implanted layer and luminescent layer is effectively separated by water-based implanted layer, solves solwution method cleverly and prepares the problem of dissolving each other easily produced in semiconductor device.
Accompanying drawing explanation
Fig. 1 is the voltage-current density curve chart of OLED prepared by the electric charge injection layer adopting embodiment 1, comparative example 1 and comparative example 2 to prepare.
Fig. 2 is the voltage-brightness curve chart of OLED prepared by the electric charge injection layer adopting embodiment 1, comparative example 1 and comparative example 2 to prepare.
Fig. 3 is the current density-current efficiency curve chart of OLED prepared by the electric charge injection layer adopting embodiment 1, comparative example 1 and comparative example 2 to prepare.
Fig. 4 is the current density-power efficiency curve chart of OLED prepared by the electric charge injection layer adopting embodiment 1, comparative example 1 and comparative example 2 to prepare.
Embodiment
embodiment 1
For a preparation method for the Double-charge implantation layer of semiconductor device, the step of the method is as follows:
(1) ito glass substrate is carried out standardization cleaning;
(2) by HAT-CN and F4-TCNQ with mass ratio be 1:4 ratio mixing be dissolved in acetone, until completely dissolved leave standstill 1.5h, obtain solution A, wherein in solution A, the total concentration of HAT-CN and F4-TCNQ is 2mg/mL;
(3) by CuPc and MoO 3soluble in waterly respectively make the aqueous solution, stir 10h respectively under atmospheric environment after, mix with the ratio of volume ratio 1:1, leave standstill 1.5h, obtain solution B, wherein CuPc and MoO 3the concentration of the aqueous solution is respectively 4mg/mL and 1mg/mL;
(4) substrate to be coated is positioned over ozone treatment 20min in UV ozone machine, then the solution A obtained in step (2) is used to be coated on substrate surface uniformly by the method for rotary coating, and the 15min that anneals at the temperature of 60 DEG C, now substrate surface forms one deck oiliness film;
(5) solution B obtained in step (3) is coated on by the method for rotary coating the oiliness film surface that the 3rd step obtains uniformly, and the 15min that anneals at the temperature of 150 DEG C, now ITO substrate surface defines the film of oiliness-water-based Dual Implantations layer, is the Double-charge implantation layer for semiconductor device.
embodiment 2
For a preparation method for the Double-charge implantation layer of semiconductor device, the step of the method is as follows:
(1) ito glass substrate is carried out standardization cleaning;
(2) by HAT-CN and F4-TCNQ with mass ratio be 1:2 ratio mixing be dissolved in acetone, until completely dissolved leave standstill 1.5h, obtain solution A, wherein in solution A, the total concentration of HAT-CN and F4-TCNQ is 2mg/mL;
(3) by CuPc and MoO 3soluble in waterly respectively make the aqueous solution, stir 10h respectively under atmospheric environment after, mix with the ratio of volume ratio 1:1, leave standstill 1.5h, obtain solution B, wherein CuPc and MoO 3the concentration of the aqueous solution is respectively 4mg/mL and 1mg/mL;
(4) substrate to be coated is positioned over ozone treatment 20min in UV ozone machine, then the solution A obtained in step (2) is used to be coated on substrate surface uniformly by the method for rotary coating, and the 15min that anneals at the temperature of 60 DEG C, now substrate surface forms one deck oiliness film;
(5) solution B obtained in step (3) is coated on by the method for rotary coating the oiliness film surface that the 3rd step obtains uniformly, and the 15min that anneals at the temperature of 150 DEG C, now ITO substrate surface defines the film of oiliness-water-based Dual Implantations layer, is the Double-charge implantation layer for semiconductor device.
embodiment 3
For a preparation method for the Double-charge implantation layer of semiconductor device, the step of the method is as follows:
(1) ito glass substrate is carried out standardization cleaning;
(2) by HAT-CN and F4-TCNQ with mass ratio be 1:6 ratio mixing be dissolved in acetone, until completely dissolved leave standstill 1.5h, obtain solution A, wherein in solution A, the total concentration of HAT-CN and F4-TCNQ is 2mg/mL;
(3) by CuPc and MoO 3soluble in waterly respectively make the aqueous solution, stir 10h respectively under atmospheric environment after, mix with the ratio of volume ratio 1:1, leave standstill 1.5h, obtain solution B, wherein CuPc and MoO 3the concentration of the aqueous solution is respectively 4mg/mL and 1mg/mL;
(4) substrate to be coated is positioned over ozone treatment 20min in UV ozone machine, then the solution A obtained in step (2) is used to be coated on substrate surface uniformly by the method for rotary coating, and the 15min that anneals at the temperature of 60 DEG C, now substrate surface forms one deck oiliness film;
(5) solution B obtained in step (3) is coated on by the method for rotary coating the oiliness film surface that the 3rd step obtains uniformly, and the 15min that anneals at the temperature of 150 DEG C, now ITO substrate surface defines the film of oiliness-water-based Dual Implantations layer, is the Double-charge implantation layer for semiconductor device.
comparative example 1
For a preparation method for the oiliness list electric charge injection layer of semiconductor device, the step of the method is as follows:
(1) ito glass substrate is carried out standardization cleaning;
(2) by HAT-CN and F4-TCNQ with mass ratio be 1:4 ratio mixing be dissolved in acetone, until completely dissolved leave standstill 1.5h, obtain solution A, wherein in solution A, the total concentration of HAT-CN and F4-TCNQ is 2mg/mL;
(3) substrate to be coated is positioned over ozone treatment 20min in UV ozone machine, then the solution A obtained in step (2) is used to be coated on substrate surface uniformly by the method for rotary coating, and the 15min that anneals at the temperature of 60 DEG C, now substrate surface forms one deck oiliness film, obtains oiliness list electric charge injection layer.
comparative example 2
For a preparation method for the water-based list electric charge injection layer of semiconductor device, the step of the method is as follows:
(1) ito glass substrate is carried out standardization cleaning;
(2) by CuPc and MoO 3soluble in waterly respectively make the aqueous solution, stir 10h respectively under atmospheric environment after, mix with the ratio of volume ratio 1:1, leave standstill 1.5h, obtain solution A, wherein CuPc and MoO 3the concentration of the aqueous solution is respectively 4mg/mL and 1mg/mL;
(3) substrate to be coated is positioned over ozone treatment 20min in UV ozone machine, then the solution A obtained in step (2) is used to be coated on substrate surface uniformly by the method for rotary coating, and the 15min that anneals at the temperature of 60 DEG C, now substrate surface forms one deck water-based film, obtains water-based list electric charge injection layer.
The OLED for preparing of depositing light emitting layer (TCTA:Firpic), electron transfer layer (TmPyPB) and negative electrode (Liq/Al) successively again on the electric charge injection layer that embodiment 1, comparative example 1 and comparative example 2 prepare.Known from Fig. 1-4, in embodiment 1, current efficiency maximum is 16.7cd/A, and power efficiency maximum is 7.16lm/W; In comparative example 1, current efficiency maximum is 7.13cd/A, and power efficiency maximum is 3.16lm/W; In comparative example 2, current efficiency maximum is 5.01cd/A, and power efficiency maximum is 1.72lm/W; Composition graphs 3, Fig. 4 are known, and when oiliness implanted layer and water-based implanted layer are combined, device performance can reach optimum efficiency, and when only using oiliness implanted layer or water-based implanted layer, and device efficiency all can have and significantly reduces.
Can obtain thus, by the level-density parameter of oiliness-water-based Dual Implantations layer, be conducive to the transmission in hole and the stop of electronics, effectively can improve the efficiency of device.

Claims (5)

1., for a preparation method for the Double-charge implantation layer of semiconductor device, it is characterized in that the step of the method is as follows:
(1) by HAT-CN and F4-TCNQ with mass ratio be 1:(2-6) ratio mixing be dissolved in acetone, until completely dissolved leave standstill 1-2h, obtain solution A, wherein in solution A, the total concentration of HAT-CN and F4-TCNQ is 2mg/mL;
(2) by CuPc and MoO 3soluble in waterly respectively make the aqueous solution, stir 10h respectively under atmospheric environment after, mix with the ratio of volume ratio 1:1, leave standstill 1-2h, obtain solution B, wherein CuPc and MoO 3the concentration of the aqueous solution is respectively 4mg/mL and 1mg/mL;
(3) substrate to be coated is positioned over ozone treatment 20min in UV ozone machine, then the solution A obtained in step (1) is used to be coated on substrate surface uniformly by the method for rotary coating, and the 15min that anneals at the temperature of 60 DEG C, now substrate surface forms one deck oiliness film;
(4) solution B obtained in step (2) is coated on by the method for rotary coating the oiliness film surface that the 3rd step obtains uniformly, and the 15min that anneals at the temperature of 150 DEG C, now ITO substrate surface defines the film of oiliness-water-based Dual Implantations layer, is the Double-charge implantation layer for semiconductor device.
2. the preparation method of a kind of Double-charge implantation layer for semiconductor device according to claim 1, is characterized in that: in described step (1) by HAT-CN and F4-TCNQ with mass ratio be 1:4 ratio mixing be dissolved in acetone.
3. the preparation method of a kind of Double-charge implantation layer for semiconductor device according to claim 1, is characterized in that: after dissolving completely in described step (1), time of repose is 1.5h.
4. the preparation method of a kind of Double-charge implantation layer for semiconductor device according to claim 1, is characterized in that: in described step (2), time of repose is 1.5h.
5. the preparation method of a kind of Double-charge implantation layer for semiconductor device according to claim 1, is characterized in that: the substrate in described step (3) is monocrystalline silicon substrate or ito glass substrate.
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