Investigation of Magnetic Circular Dichroism Spectra of Semiconductor Quantum Rods and Quantum Dot-in-Rods

• Main Authors: Farrukh Safin, Vladimir Maslov, Yulia Gromova, Ivan Korsakov, Ekaterina Kolesova, Aliaksei Dubavik, Sergei Cherevkov, Yurii K. Gun’ko
• Format: Article
• Language: English
• Published: MDPI AG 2020-05-01
• Series: Nanomaterials
• Subjects: magnetic circular dichroism; quantum nanocrystals; quantum rods; Dot-in-Rods
• Online Access: https://www.mdpi.com/2079-4991/10/6/1059
• ISSN: 2079-4991

Anisotropic quantum nanostructures have attracted a lot of attention due to their unique properties and a range of potential applications. Magnetic circular dichroism (MCD) spectra of semiconductor CdSe/ZnS Quantum Rods and CdSe/CdS Dot-in-Rods have been studied. Positions of four electronic transitions were determined by data fitting. MCD spectra were analyzed in the <b><i>A</i></b> and <b><i>B</i></b> terms, which characterize the splitting and mixing of states. Effective values of <b><i>A</i></b> and <b><i>B</i></b> terms were determined for each transition. A relatively high value of the <b><i>B</i></b> term is noted, which is most likely associated with the anisotropy of quantum rods.