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WAPC laminated transparent electrode and preparation method thereof
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A transparent electrode and stacking technology, applied in the field of optoelectronics, can solve the problems of low transmittance of stacked electrodes, complicated preparation process, poor conductivity, etc.
Active Publication Date: 2021-09-14
CHONGQING UNIV
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[0005] The purpose of the present invention is to provide a WAPC laminated transparent electrode and its preparation method to solve the problems of low transmittance, poor conductivity and complicated preparation process of the laminated electrode.
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Embodiment 1
[0039] Embodiment 1, the WAPC laminated transparent electrode in this embodiment includes a CuSCN film layer 1, a PEI film layer 2 arranged on the CuSCN film layer, an Ag film layer 3 arranged on the PEI film layer, and an Ag film layer arranged on the Ag film layer. WO on 3 Thin film layer 4, such as figure 1 shown.
[0040] In the present embodiment, in the described WAPC laminated transparent electrode, the thickness of CuSCN film layer is 47nm, the thickness of Ag film layer is 9nm, WO 3 The thickness of the thin film layer is 35 nm.
[0041]In laminated transparent electrodes, the film quality of the ultra-thin Ag film has a significant impact on the transmittance and conductivity of the electrode. A continuous and uniform conductive thin film is obtained as follows. In the present invention, PEI (Polyethyleneimine (PEI)) treated by spin coating method is used as the seed layer. Since the functional amine in PEI can form a coordination compound with the thermally evap...
Embodiment 2
[0042] Embodiment 2, the preparation method of the WAPC laminated transparent electrode in this embodiment includes the following steps:
[0043] 1) Dissolve a certain amount of CuSCN in diethyl sulfide to configure a CuSCN solution;
[0044] 2) take a certain amount of PEI and dissolve it in absolute ethanol, and configure it into a PEI ethanol solution;
[0045] 3) Place a clean cPI substrate on a glass substrate, spin-coat the CuSCN solution on the cPI surface, and then anneal at high temperature to obtain a CuSCN thin film;
[0046] 4) spin-coating the PEI solution on the CuSCN film to prepare a PEI film;
[0047] 5) Put the spin-coated cPI substrate with CuSCN and PEI into the vacuum evaporation equipment, first evaporate the Ag film on the PEI film, and then evaporate the WO on the Ag film 3 film.
[0048] Specifically in the above embodiment, the mass-volume concentration of the CuSCN solution configured in the step 1) is 20 mg / ml;
[0049] The mass-volume concentra...
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Abstract
The invention discloses a WAPC laminated transparent electrode and a preparation method thereof. The WAPC laminated transparent electrode includes a CuSCN thin film layer, a PEI thin film layer, an Ag film layer, and a WO 3 Thin film layer; the preparation method of WAPC laminated transparent electrode comprises the following steps: 1) configure CuSCN solution; 2) configure PEI ethanol solution; 3) spin-coat CuSCN solution on cPI surface, obtain CuSCN thin film after high-temperature annealing; 4) PEI The solution was spin-coated on the CuSCN film to prepare the PEI film; 5) the Ag film was evaporated on the PEI film first, and then the WO was evaporated on the Ag film. 3 film. The invention adopts PEI as a seed layer, which can uniformly deposit Ag atoms on the surface of PEI to form a uniform and continuous thin film, and the thickness of the film can reach below 10nm, thereby improving the transmittance and conductivity of the stacked transparent electrode.
Description
technical field [0001] The invention relates to the field of optoelectronic technology, in particular to a method for preparing a transparent electrode and the transparent electrode. Background technique [0002] Transparent electrodes are important components of organic optoelectronic devices, such as organic solar cells, organic light-emitting diodes, touch screens, smart windows, etc. In recent years, with the gradual commercialization of flexible electronic products, the rapid development of technologies such as flexible solar cells, flexible sensors, and flexible displays has led to an increasingly strong demand for flexible electrodes. For now, the most mature and widely used transparent electrode material is indium tin oxide (ITO). However, the inherent brittleness of ITO and the scarcity of indium resources make it unable to meet the requirements of future optoelectronic devices for flexibility, lightness, and environmental protection. strict requirements. To this ...
Claims
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