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Design of multifunctional self-powered electrochromic material and integrated electrochromic device

An electrochromic material and electrochromic layer technology, which can be applied to color-changing fluorescent materials, electric solid devices, electrical components, etc., can solve the problem that triphenylamine derivatives are not reported, and achieve the effects of low preparation cost and simple structure.

Inactive Publication Date: 2014-08-27
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, triphenylamine derivatives with both electrochromic and photoelectric conversion properties have not been reported.

Method used

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  • Design of multifunctional self-powered electrochromic material and integrated electrochromic device
  • Design of multifunctional self-powered electrochromic material and integrated electrochromic device
  • Design of multifunctional self-powered electrochromic material and integrated electrochromic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 3

[0039] Example 1 Preparation of triphenylamine self-powered electrochromic material

[0040](1) Synthesis of compound 1: under the protection of inert gas, weigh 2.73ml (30mmol) aniline, 4.066g (20mmol) 4-bromo-N,N-dimethylaniline, 0.12g (0.13mmol) tris(di Benzylideneacetone) dipalladium, 0.0531g (0.26mmol) tri-tert-butylphosphine, and 1.922g (20mmol) sodium tert-butoxide were added to toluene. React at 90°C for 24 hours. Toluene was removed under reduced pressure and dissolved with chloroform. After filtration, it was washed 3 times with saturated brine. The organic layer was dried, filtered, spin-dried, and a yellow product was obtained by column analysis.

[0041] (2) Synthesis of compound 2: under the protection of an inert gas, weigh 3.162g (14.89mmol) of compound 1, 4g (21.62mmol) of p-bromobenzaldehyde, 0.18g (0.20mmol) of tris(dibenzylideneacetone) di Palladium, 0.0795g (0.40mmol) tri-tert-butylphosphine, 4g (20mmol) cesium carbonate were added to toluene. React a...

Embodiment 2 3

[0045] Example 2 Preparation of triphenylamine self-powered electrochromic material

[0046] (1) Synthesis of compound 1: under the protection of an inert gas, weigh 1.90ml (20mmol) aniline, 4.066g (20mmol) 4-bromo-N,N-dimethylaniline, 0.12g (0.13mmol) three (di Benzylideneacetone) dipalladium, 0.053g (0.26mmol) tri-tert-butylphosphine, and 1.92g (20mmol) sodium tert-butoxide were added to toluene. React at 90°C for 24 hours. Toluene was removed under reduced pressure and dissolved with chloroform. After filtration, it was washed 3 times with saturated brine. The organic layer was dried, filtered, spin-dried, and a yellow product was obtained by column analysis.

[0047] (2) Synthesis of compound 2: under the protection of an inert gas, weigh 3.162g (15mmol) of compound 1, 2.78g (15mmol) of p-bromobenzaldehyde, 0.18g (0.20mmol) of tris(dibenzylideneacetone)dipalladium , 0.0795g (0.40mmol) tri-tert-butyl phosphorus, 4g (20mmol) cesium carbonate were added to toluene. React...

Embodiment 3

[0051] Embodiment 3 Assembly of self-powered electrochromic device

[0052] (1) Preparation of counter electrode

[0053] Apply the pt catalyst gel to the conductive surface of the transparent conductive substrate ITO, heat it at 260°C for 10 minutes, take it out, and cool it to room temperature to obtain the counter electrode.

[0054] (2) Preparation of working electrode

[0055] Use the scraper method to coat the porous semiconductor film on the conductive surface of the transparent conductive substrate FTO, heat it at 400~450°C for 30 minutes, and place it in the material solution synthesized in Example 1 for adsorption. The solution is preferably chloroform as a solvent, and the adsorption time is preferably 24 to 48 hours to ensure that the adsorption reaches the optimum value, so as to obtain the working electrode.

[0056] (3) Choice of electrolyte

[0057] Through comparative experiments of different electrolytes, the preferred electrolyte is Iodolyte AN-50.

[00...

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Abstract

The invention provides a triphenylamine self-powered electrochromic material, namely a compound (4-((4-(N, N-dimethylamine)phenyl)(phenyl)amino)benzyl)phosphonic acid and a synthesis method thereof. The invention also provides a self-powered electrochromic device containing the triphenylamine derivative. The novel triphenylamine derivative electrochromic material provided by the invention has double performance of photoelectric conversion and electrochromism; and the device consisting of the compound can realize the self-powering feature, namely that the device absorbs light energy and converts the light energy into electric energy for driving the device to change color. The novel device is simple in structure, low in preparation cost, green and environment-friendly and the like, and can be applied to the fields of buildings, automobiles, displays and the like.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and in particular relates to the design and integration of a multifunctional self-powered electrochromic material and an integrated electrochromic device Background technique [0002] Photovoltaic materials and electrochromic materials are research hotspots in recent years. Among many materials, triphenylamine and its derivatives have attracted much attention due to their excellent thermal and electrochemical stability, electron donating ability and photoelectric properties. In 2011, Hung-Ju Yen [Novel Starburst Triarylamine-Containing Electroactive Aramids with Highly Stable Electrochromism in Near-Infrared and Visible Light Regions] reported a series of trianiline-based aromatic ring polyamides. Very stable electrochromic performance. In 2010, Wang Peng's research group [Efficient Dye-Sensitized Solar Cells with an Organic Photosensitizer Featuring Orderly Conjugated Ethylenediox...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K9/02C07F9/38G02F1/153H01L51/46
CPCY02B10/10Y02E10/549
Inventor 徐春叶陈梅杨树威郑建明
Owner UNIV OF SCI & TECH OF CHINA