AI Article Synopsis
- Supramolecular polymers (SPs) with π-conjugated molecules show promise in optoelectronics due to their non-covalent interactions, especially those containing naphthalenediimide (NDI) which are effective electron acceptors.
- This research presents a charge transfer system where cesium lead bromide quantum dots (QDs) serve as electron donors, interacting with cholesterol-functionalized NDI-based SPs.
- Detailed microscopic and spectroscopic analyses reveal that mixing QDs with the SP leads to a significant decrease in the photoluminescence intensity and lifetime of the QDs, confirming efficient electron transfer from the QDs to the SP.
Article Abstract
Supramolecular polymers (SPs) formed via the stacking of π-conjugated molecules are attractive nanomaterials because of their potential optoelectronic properties derived from the non-covalent interaction between the π-skeletons. Especially, SPs possessing naphthalenediimide (NDI) core units can act as superior electron acceptors due to their deep lowest unoccupied molecular orbital (LUMO). Interaction of such SP with electron donors can realize a charge transfer system, but this has not been established. Herein, we report a photoinduced electron transfer system from cesium lead bromide quantum dot (QD) as an electron donor to SP composed of cholesterol-functionalized NDI derivatives. The supramolecular polymerization in a non-polar solvent was analyzed in detail via microscopic and spectroscopic analyses. Upon mixing the SP with QDs, the photoluminescence intensity and lifetime of QDs decreased significantly, indicating efficient photoinduced electron transfer from QD to SP.
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| http://dx.doi.org/10.1002/asia.202401299 | DOI Listing |
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