Method for in-situ upgrowth titanic oxide thin film electric pole

A titanium dioxide and thin-film electrode technology, which is applied in electrode manufacturing, capacitor electrodes, circuits, etc., can solve the problems of high production cost, poor bonding force between titanium dioxide film and substrate, etc., and achieve the effect of low production cost and low price

Inactive Publication Date: 2008-03-12
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of high preparation cost and poor binding force between the prepared titanium dioxide film and the

Method used

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specific Embodiment approach 1

[0009] Specific embodiment one: the preparation method of the titanium dioxide film electrode of the present embodiment is carried out as follows: one, the pretreatment of titanium plate: be that the concentrated nitric acid of 65% and mass concentration are 40% hydrogen fluoride solution by volume ratio to be 1 : 1 ratio, put the titanium sheet into the mixed solution and soak for 2 to 5 seconds, take it out and rinse it with distilled water; 2. Put the treated titanium sheet into the electrolyte, the titanium sheet is used as the anode, and the copper is used as the cathode. The input current intensity is 1~20A / dm 2 1. Direct current with a voltage of 100-280V for 5-50 minutes; 3. Wash the electrolyte covering the titanium dioxide film with distilled water, and after drying, put the dried titanium dioxide film into a concentration of 0.1-1mmol / L Soak and sensitize in the ethanol solution of the sensitizer for 12 hours under the condition of 25-45° C., then take out the film,...

specific Embodiment approach 2

[0011] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in Step 1, the titanium sheet is put into the mixed liquid and soaked for 3 seconds. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0012] Specific embodiment 3: The difference between this embodiment and specific embodiment 1 is that the current in step 2 is 2-19A / dm 2 , The voltage is 120-240V DC for 10-45 minutes. Other steps and parameters are the same as those in Embodiment 1.

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Abstract

A titanium dioxide membrane electrode growing in place is provided, which relates to a preparation method for titanium dioxide membrane electrode. The invention solves the problems of high cost in the prior preparation method for titanium dioxide membrane electrode and weak bonding force of the prepared titanium dioxide membrane and the substrate. The titanium dioxide membrane electrode provided in the invention can be prepared through steps as follows: first, preprocessing to titanium sheet; second, energizing; third, baking and sensitizing, by which the titanium dioxide membrane electrode growing in place can be produced. The titanium dioxide membrane electrode prepared by the invention has the advantages of low cost and strong bonding force of the titanium dioxide membrane and the substrate.

Description

technical field [0001] The invention relates to a preparation method of a titanium dioxide thin film electrode. Background technique [0002] With the depletion of non-renewable energy such as coal, oil, and natural gas, the development and utilization of solar energy has become an important part of the sustainable development strategy of various countries. Solar cells are one of the effective ways for humans to use solar energy to solve future energy crises. [0003] In 1991, Grtzel and others proposed a dye-sensitized solar cell with low cost, simple fabrication and environmental friendliness, which made the large-scale application of solar photovoltaic technology possible. A dye-sensitized solar cell consists of a dye-sensitized titanium dioxide film electrode, an electrolyte and a counter electrode. Among them, titanium dioxide thin film electrodes play the role of adsorbing sensitizers and transporting electrons to the external circuit in solar cells, and their perfo...

Claims

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Application Information

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IPC IPC(8): H01L31/18H01L51/48H01L21/28H01G9/04H01G9/20H01M14/00H01M4/04
CPCY02E10/549Y02E10/50Y02E60/12Y02E60/10Y02P70/50
Inventor 吴晓宏王松秦伟姜兆华
Owner HARBIN INST OF TECH
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