AI Article Synopsis
- * By using in situ photoluminescence measurements, the researchers observed significant shifts in the electrochemical band gap of different SWNT types, which are linked to the interaction differences between the CPs and the SWNTs.
- * The findings suggest that this approach allows for precise adjustments in the electronic states of SWNTs, specifically in their reduction and oxidation potentials, offering a straightforward method for enhancing their functionality.
Article Abstract
Controlling the redox states of single-walled carbon nanotubes (SWNTs) is important for the optimization of their real performances in various fields. By means of in situ photoluminescence (PL) spectroelectrochemical measurements, we report a successful modulation for the redox parameters (redox potentials and electrochemical band gap) of (6,5) and (7,5)SWNTs with a simple change in conjugated polymers (CPs) non-covalently wrapped on the nanotubes. The large shift in the band gap (187 meV for (6,5)SWNTs and 101 meV for (7,5)SWNTs) was connected to the prominent difference in the interactions between the CPs and SWNTs as suggested by molecular dynamics (MD) simulations, while a striking difference in the π-electrons states of CP/SWNTs enabled the tuning of SWNTs' electronic states. Asymmetrical modulation for the reduction potential (LUMO) and oxidation potential (HOMO) of the SWNTs was observed as well. Our results can be promising for a simple but precise control of the electric states of SWNTs.
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| http://dx.doi.org/10.1002/asia.202400879 | DOI Listing |
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