Photophysical insights on quantum dots-zinc porphyrazine system studied in solution
| Autor: | Anamika Ray, Shrabanti Banerjee, Sumanta Bhattacharya |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Photoluminescence
Quenching (fluorescence) 010405 organic chemistry Organic Chemistry chemistry.chemical_element Porphyrazine Zinc 010402 general chemistry 01 natural sciences Toluene Molecular physics 0104 chemical sciences Inorganic Chemistry chemistry.chemical_compound chemistry Quantum dot Drug Discovery Electrochemistry Steady state fluorescence Physical and Theoretical Chemistry Time-resolved spectroscopy |
| Zdroj: | Journal of the Indian Chemical Society. 98:100068 |
| ISSN: | 0019-4522 |
| DOI: | 10.1016/j.jics.2021.100068 |
| Popis: | The present study reports spontaneous interaction of a quantum dots, namely, CdSxSe1-x/ZnS (QD) with zinc porphyrazine (1) in toluene. It is observed from steady state fluorescence measurements that photoluminescence of QD suffers quenching by 1. Time resolved fluorescence measurements reveal small change in the lifetime of QD (16.10 ns) following it interaction with 1 (15.77 ns). The magnitude of kq for QD-1 system, i.e., kq = 5.25 × 1012 L⋅mol−1⋅sec−1 (evaluated from the stern-volmer plot) establishes that photoexcited QD undergoes decay by 1 according to static quenching mechanism. The results emerging from above study confirm that QD-1 system may be judiciously applied as an energy storage material in near future. |
| Databáze: | OpenAIRE |
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