Indoline-dithienoquinoxaline-dibenzo[a,c]phenazine dye and application of dye to dye-sensitized solar cell
A dye-sensitized, solar cell technology, applied in azine dyes, organic dyes, circuits, etc., to achieve the effects of good light absorption, promotion of electron transfer, and simple synthesis process
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0022] Indoline-dithienoquinoxaline-dibenzo[a,c]phenazine dye IQ(R 1 =C 8 h 17 (n-octyl), R 2 =C 8 h 17 (n-octyl), ie R 1 and R 2 The same is the synthesis of a linear alkyl group containing 8 carbon atoms, X is a sulfur atom), and the synthetic route is as follows:
[0023]
[0024]
[0025] Concrete synthesis process comprises the following steps:
[0026] (1) Synthesis of compound 2
[0027]
[0028] In a nitrogen atmosphere, 4.6g (10mmol) of compound 1 was dissolved in 25mL of tetrahydrofuran (THF), then cooled to 0°C, N-bromosuccinimide (4.4g, 25mmol) was added to the reaction solution, and to normal temperature, reacted for 12h, added 30mL of water to quench the reaction, and extracted with dichloromethane; the organic phase was washed twice with water, dried, concentrated, and the crude product was recrystallized with 10mL of n-hexane to obtain 5g of white solid, namely compound 2, yield 80%. The melting point is 100.3-101.6°C. 1 H NMR (400MHz, Chlor...
Embodiment 2
[0043] The synthetic dye IQ of embodiment 1 is carried out ultraviolet-visible absorption spectrum test, and test condition is as follows:
[0044] Solvent: tetrahydrofuran;
[0045] Concentration: 2×10 -5 M;
[0046] temperature: room temperature;
[0047] Instrument: Shimadzu UV-2450 UV-Vis spectrophotometer.
[0048] The UV-Vis absorption spectrum obtained from the test is shown as figure 1 shown, from figure 1 It can be seen that in the tetrahydrofuran solution, the dye IQ exhibits two absorption peaks, one is the absorption peak of the π-π* transition, and the other is the absorption peak of the intramolecular charge transfer (ICT), and the molar extinction coefficient of the dye is relatively High, wide absorption range, exceeding 24000M in the range of 400-550nm - 1 cm -1 , which indicates that the dye IQ has a good light-harvesting ability.
Embodiment 3
[0050] Fabrication of dye-sensitized solar cells
[0051] The dye IQ prepared in Example 1 was used as a sensitizer in a dye-sensitized solar cell to prepare a dye-sensitized solar cell based on the dye IQ sensitizer.
[0052] Dye-sensitized solar cells are mainly composed of conductive glass substrates (F-doped SnO 2 Transparent conductive glass (FTO), photoanode, sensitizer, electrolyte solution and platinum counter electrode (also known as photocathode, platinum-coated conductive glass); among them, the conductive glass surface of the photoanode substrate is covered with nanoporous TiO 2 Thin film used to adsorb dyes; the substrate of the counter electrode is coated with Pt catalyst; 2 The periphery of the film is sealed with a sealing material to form a closed cavity, and the cavity is filled with an electrolyte solution and a sensitizer (ie indoline-dithienoquinoxaline-dibenzo[a,c]phenazine dye IQ).
[0053] The specific preparation process of dye-sensitized solar cell...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com