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Method of preparing ZnO:Zr transparent conductive film by radio frequency magnetic controlled sputtering method

A transparent conductive film, radio frequency magnetron sputtering technology, applied in sputtering coating, metal material coating process, vacuum evaporation coating, etc. Problems such as poor optoelectronic properties, to achieve the effects of improved optoelectronic properties, simple and cheap equipment, and easy large-area film formation

Inactive Publication Date: 2006-01-11
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the pulsed laser deposition method can produce a resistivity of 5.4×10 -4 Ωcm thin film, but the equipment is expensive, and it is difficult to form a large-area film; although the sol-gel method has simple and cheap equipment and is easy to form a large-area film, the uniformity and photoelectric properties of the film are relatively poor. The lowest resistivity of the film is only 7.6×10 -2 Ωcm

Method used

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  • Method of preparing ZnO:Zr transparent conductive film by radio frequency magnetic controlled sputtering method
  • Method of preparing ZnO:Zr transparent conductive film by radio frequency magnetic controlled sputtering method
  • Method of preparing ZnO:Zr transparent conductive film by radio frequency magnetic controlled sputtering method

Examples

Experimental program
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Effect test

Embodiment 1

[0020] (1) ZnO and ZrO with a purity of 99.99WT% 2 The powder is fully mixed with a ball mill at a weight ratio of 95:5; then, the fully mixed powder is extruded under a pressure of 60 MPa for 15 minutes to form it, and then sent to a high-temperature sintering furnace for sintering at 1300°C in air for 360 minutes. Get ZnO:Zr target.

[0021] (2) Select #7059 glass as the substrate, and clean the substrate with ultrasonic waves and acetone in sequence. Send the target material and cleaned substrate of step (1) into the radio frequency magnetron sputtering apparatus, and the basic vacuum of the sputtering apparatus is 5.0×10 -4 Pa, the sputtering gas is argon with a purity of 99.99%, the sputtering pressure is adjusted to 0.6Pa, the sputtering power is 125W, the sputtering time is 6 minutes, and the film thickness is 170nm to prepare a thin film. The resistivity of the film is 9.76×10 -3 Ωcm.

[0022] The XRD image of the as-prepared ZnO:Zr film is as follows figure 1 As ...

Embodiment 2

[0024] As described in Example 1, the difference is that the sputtering time in step (2) is 16 minutes, and the film thickness is 475 nm. The resistivity of the film is 2.07×10 -3 Ωcm. The XRD image of the as-prepared ZnO:Zr film is as follows figure 2 shown, with figure 1 In contrast, the intensity of the ZnO (002) peak is significantly enhanced, indicating that with the increase of the film thickness, the grains of the film are larger and the crystallization is stronger. The resistivity of the film is also significantly reduced.

Embodiment 3

[0026] As described in Example 1, the difference is that the sputtering time in step (2) is 20 minutes, and the film thickness is 600 nm. The resistivity of the film is 4.24×10 -3 Ωcm. The XRD image of the as-prepared ZnO:Zr film is as follows image 3 shown, with figure 2 In contrast, the intensity of the ZnO (002) peak does not change much, indicating that when the film thickness increases to a certain extent, the grain size and crystallization degree of the film tend to be stable. The resistivity of the film increases.

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Abstract

A process for preparing the electrically conductive transparent ZnO:Zr film by magnetically controlled RF sputter method includes such steps as proportionally mixing high-purity ZnO and ZrO2 powders, stirring, die pressing, calcining at 1250-1350 deg.C to obtain ZnO:Zr target, loading the target and substrate in magnetically controlled RF sputtering apparatus, and vacuum sputtering in argon gas. Said film features high photoelectric performance, high resistivity and high light transmission rate up to 92%.

Description

(1) Technical field [0001] The invention relates to a method for preparing a ZnO:Zr transparent conductive film, in particular to a method for preparing a ZnO:Zr transparent conductive film by a radio frequency magnetron sputtering method, which belongs to the technical field of electronic materials. (2) Background technology [0002] Transparent conductive films are widely used in microelectronics technology. The most commonly used transparent conductive film is ITO (In 2 o 3 :Sn) film, but when the temperature is higher than 700K, the performance of the ITO film begins to degrade, see "Indium Tin Oxide Films for Organic Light-Emitting Devices" by H.Kim et al., "Applied Physics Letters" 74 (1999 ) 3444 (H.Kim al., Indiumtin oxide thin films for organic light-emitting devices, Appl.Phys.Lett.74 (1999) 3444.) and C.Coutal et al. "Preparation of ITO by excimer laser evaporation Thin Films and Thin Film Properties", "Solid Films" 288(1996) 248 (C.Coutal, al, Fabrication and ...

Claims

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Application Information

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IPC IPC(8): C23C14/08C23C14/35
Inventor 韩圣浩吕茂水叶丽娜庞智勇修显武
Owner SHANDONG UNIV