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Related Concept Videos

Aryldiazonium Salts to Azo Dyes: Diazo Coupling01:11

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the para position.

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Related Experiment Video

Updated: May 8, 2026

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
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Published on: October 5, 2019

Hydroxyethyl and ester co-functionalized imidazolium iodide for highly efficient solid-state dye-sensitized solar

Juan Li1, Hong Wang, Gang Zhou

  • 1Department of Chemistry, Lab of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, 2205 Songhu Road, Shanghai 200438, China. zs.wang@fudan.edu.cn.

Chemical Communications (Cambridge, England)
|September 7, 2013
PubMed
Summary

Researchers developed a new solid-state electrolyte for dye-sensitized solar cells. This novel material demonstrates high ionic conductivity and achieves a 7.45% power conversion efficiency, advancing solar energy technology.

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Published on: June 28, 2017

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Last Updated: May 8, 2026

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Published on: October 5, 2019

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Electrospinning of Photocatalytic Electrodes for Dye-sensitized Solar Cells
09:30

Electrospinning of Photocatalytic Electrodes for Dye-sensitized Solar Cells

Published on: June 28, 2017

Area of Science:

  • Materials Science
  • Electrochemistry
  • Renewable Energy

Background:

  • Dye-sensitized solar cells (DSSCs) are a promising photovoltaic technology.
  • Efficient solid-state electrolytes are crucial for improving DSSC performance and stability.
  • Current electrolytes often face challenges with liquid leakage or low conductivity.

Purpose of the Study:

  • To design and synthesize a novel hydroxyethyl and ester co-functionalized imidazolium iodide solid-state electrolyte.
  • To evaluate the electrolyte's structural properties and ionic conductivity.
  • To assess the performance of the electrolyte in dye-sensitized solar cells.

Main Methods:

  • Chemical synthesis of the co-functionalized imidazolium iodide.
  • Single crystal X-ray diffraction for structural analysis.
  • Fabrication and testing of dye-sensitized solar cells using the synthesized electrolyte.

Main Results:

  • The synthesized material forms ordered three-dimensional ionic channels for iodide.
  • The electrolyte exhibits high ionic conductivity when combined with iodine and lithium iodide.
  • Dye-sensitized solar cells incorporating this electrolyte achieved a power conversion efficiency of 7.45%.

Conclusions:

  • The hydroxyethyl and ester co-functionalized imidazolium iodide is an effective solid-state electrolyte for DSSCs.
  • The ordered ionic channels facilitate high iodide conductivity.
  • This development offers a promising pathway for efficient and stable solid-state solar cells.