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Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
Published on: September 12, 2014
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A highly efficient light-harvesting system with sequential energy transfer based on a multicharged supramolecular
Jing-Jing Li1, Heng-Yi Zhang1, Xian-Yin Dai1
1College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China. hyzhang@nankai.edu.cn yuliu@nankai.edu.cn.
Chemical Communications (Cambridge, England)
|April 30, 2020
Summary
Researchers created an efficient light-harvesting system using supramolecular assembly. This system utilizes pillar[5]arene (WP5) and a pyridinium-modified tetraphenylethene (Py-TPE) derivative for two-step sequential energy transfer.
Area of Science:
- Supramolecular Chemistry
- Photochemistry
- Materials Science
Background:
- Developing efficient light-harvesting systems is crucial for applications like solar energy conversion.
- Supramolecular assemblies offer a versatile platform for organizing chromophores for energy transfer processes.
Purpose of the Study:
- To construct a supramolecular assembly for efficient light harvesting.
- To investigate a two-step sequential energy transfer mechanism within the assembly.
Main Methods:
- Noncovalent interaction between pillar[5]arene (WP5) and a pyridinium-modified tetraphenylethene (Py-TPE) derivative.
- Utilizing Py-TPE/WP5 as a donor and sulforhodamine 101/sulfonated aluminum phthalocyanine as acceptors.
Main Results:
- A highly efficient light-harvesting system was successfully constructed.
- Demonstrated a two-step sequential energy transfer pathway within the supramolecular assembly.
Conclusions:
- The designed supramolecular assembly enables efficient light harvesting through sequential energy transfer.
- This approach provides a promising strategy for developing advanced light-harvesting materials.
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