Photo-anode based on flexible substrate and production method thereof

A flexible substrate and photoanode technology, applied in the field of solar cells, can solve the problems of poor bending ability and low photovoltaic conversion efficiency of flexible solar cells, and achieve the effect of good flexibility and tensile properties

Active Publication Date: 2021-01-15
江苏日御光伏新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical defects of low photovoltaic conversion efficiency and poor bending ability of existing flexible solar cells, the present invention provides a photoanode based on a flexible substrate and its preparation method

Method used

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  • Photo-anode based on flexible substrate and production method thereof
  • Photo-anode based on flexible substrate and production method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Step 1: Add polyacrylonitrile to dimethylformamide and sonicate for 8 minutes, then stir in a water bath at 45°C for 16 hours to obtain a precursor solution with a concentration of 0.1 g / ml; then transfer the precursor solution to a syringe for electrostatic Spinning: After spinning, put the obtained fiber film into a vacuum oven at 75°C for 30 hours to dry; after drying, pre-oxidize at 270°C for 1 hour, and then carbonize the product at 1000°C for 2 hours under a nitrogen atmosphere to obtain carbon fibers.

[0029] Step 2: Soak the carbon fiber prepared in step 1 in 10wt% NaOH solution for 6 minutes, take out the carbon fiber and immerse it in 1mol / L hydrochloric acid at room temperature for 12 minutes, then immerse the carbon fiber in absolute ethanol for 5 minutes and ultrasonically Repeatedly wash 6 times with deionized water; then soak the carbon fiber in 150ml of deionized water, and add FeSO 4 ·7H 2 O and carbon fiber mass of 0.13 phosphoric acid, after stirrin...

Embodiment 2

[0034] Step 1: Add polyacrylonitrile to dimethylformamide and sonicate for 9 minutes, then stir in a water bath at 50°C for 12 hours to obtain a precursor solution with a concentration of 0.12 g / ml; then transfer the precursor solution to a syringe for electrostatic Spinning: After spinning, put the obtained fiber film in a vacuum oven at 80°C for 24 hours to dry; after drying, pre-oxidize at 280°C for 1 hour, and then carbonize the product at 1000°C for 2 hours under a nitrogen atmosphere to obtain carbon fibers.

[0035] Step 2: Soak the carbon fiber prepared in step 1 in 10wt% NaOH solution for 5 minutes, take out the carbon fiber and immerse it in 1mol / L hydrochloric acid for 11 minutes at room temperature, then immerse the carbon fiber in absolute ethanol for 5 minutes and ultrasonically Repeatedly wash 6 times with deionized water; then soak the carbon fiber in 150ml of deionized water, and add FeSO 4 ·7H 2 O and carbon fiber mass of 0.18 phosphoric acid, after stirring...

Embodiment 3

[0040] Step 1: Add polyacrylonitrile to dimethylformamide and sonicate for 10 minutes, then stir in a water bath at 48°C for 13 hours to obtain a precursor solution with a concentration of 0.11 g / ml; then transfer the precursor solution to a syringe for electrostatic Spinning: After spinning, put the obtained fiber film in a vacuum oven at 78°C for 27 hours to dry; after drying, pre-oxidize at 275°C for 2 hours, and then carbonize the product at 1000°C for 2 hours under a nitrogen atmosphere to obtain carbon fibers.

[0041] Step 2: Soak the carbon fiber prepared in step 1 in 10wt% NaOH solution for 6 minutes, take out the carbon fiber and immerse it in 1mol / L hydrochloric acid at room temperature for 10 minutes, then immerse the carbon fiber in absolute ethanol for 4 minutes and ultrasonically Repeatedly wash 6 times with deionized water; then soak the carbon fiber in 150ml of deionized water, and add FeSO 4 ·7H 2 O and carbon fiber mass of 0.15 phosphoric acid, after stirri...

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Abstract

The invention belongs to the technical field of solar cells, and particularly relates to a photo-anode based on a flexible substrate and a production method thereof. The production method comprises the following steps: carrying out electrostatic spinning on polyacrylonitrile, calcining to obtain carbon fibers, carrying out hydrothermal synthesis on FeSO4.7H2O, a phosphoric acid and LiOH.H2O used as raw materials in the carbon fibers to obtain lithium iron phosphate, and compounding a product with a hyaluronic acid to obtain a flexible substrate; and then depositing SnO2 and CeO2 on the surfaceof the flexible substrate, and acquiring the photo-anode after AO7 dye sensitization. The photo-anode is excellent in flexibility and photo-thermal conversion efficiency, and can be bent for multipletimes.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a photoanode based on a flexible substrate and a preparation method thereof. Background technique [0002] With the rapid development of the Internet of Things and wearable devices, a variety of flexible electronic devices have also been greatly developed, but wearable technology still faces many difficulties. Among them, the basic battery technology is delayed due to low power and other reasons. The inability to make a breakthrough seriously restricts its development. The power supply of existing wearable products generally has structural problems such as large space occupation and poor flexibility; adopting energy harvesting technology to convert other energy into electrical energy used by wearable devices is a method with excellent development prospects. [0003] Solar cells mainly use solar photovoltaic technology, which uses the photovoltaic effect to conver...

Claims

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Application Information

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IPC IPC(8): H01G9/20H01G9/042
CPCH01G9/20H01G9/2027H01G9/2095Y02E10/542
Inventor 王从兵
Owner 江苏日御光伏新材料科技有限公司
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