Induction of Chirality in Atomically Thin ZnSe and CdSe Nanoplatelets: Strengthening of Circular Dichroism via Different Coordination of Cysteine-Based Ligands on an Ultimate Thin Semiconductor Core
Chiral nanostructures exhibiting different absorption of right- and left-handed circularly polarized light are of rapidly growing interest due to their potential applications in various fields. Here, we have studied the induction of chirality in atomically thin (0.6–1.2 nm thick) ZnSe and CdSe nanop...
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| author | Daria A. Kurtina Valeria P. Grafova Irina S. Vasil’eva Sergey V. Maksimov Vladimir B. Zaytsev Roman B. Vasiliev |
| author_facet | Daria A. Kurtina Valeria P. Grafova Irina S. Vasil’eva Sergey V. Maksimov Vladimir B. Zaytsev Roman B. Vasiliev |
| author_sort | Daria A. Kurtina |
| collection | DOAJ |
| description | Chiral nanostructures exhibiting different absorption of right- and left-handed circularly polarized light are of rapidly growing interest due to their potential applications in various fields. Here, we have studied the induction of chirality in atomically thin (0.6–1.2 nm thick) ZnSe and CdSe nanoplatelets grown by a colloidal method and coated with L-cysteine and N-acetyl-L-cysteine ligands. We conducted an analysis of the optical and chiroptical properties of atomically thin ZnSe and CdSe nanoplatelets, which was supplemented by a detailed analysis of the composition and coordination of ligands. Different signs of circular dichroism were shown for L-cysteine and N-acetyl-L-cysteine ligands, confirmed by different coordination of these ligands on the basal planes of nanoplatelets. A maximum value of the dissymmetry factor of (2–3) × 10<sup>−3</sup> was found for N-acetyl-L-cysteine ligand in the case of the thinnest nanoplatelets. |
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| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T09:36:35Z |
| publishDate | 2023-01-01 |
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| record_format | Article |
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| spelling | doaj.art-7db5b84e6b24432ba4b1fb1a79e4c1792023-11-16T17:16:46ZengMDPI AGMaterials1996-19442023-01-01163107310.3390/ma16031073Induction of Chirality in Atomically Thin ZnSe and CdSe Nanoplatelets: Strengthening of Circular Dichroism via Different Coordination of Cysteine-Based Ligands on an Ultimate Thin Semiconductor CoreDaria A. Kurtina0Valeria P. Grafova1Irina S. Vasil’eva2Sergey V. Maksimov3Vladimir B. Zaytsev4Roman B. Vasiliev5Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaDepartment of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaA. N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Ave. 33, Bld. 2, 119071 Moscow, RussiaDepartment of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaDepartment of Physics, Lomonosov Moscow State University, 119991 Moscow, RussiaDepartment of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaChiral nanostructures exhibiting different absorption of right- and left-handed circularly polarized light are of rapidly growing interest due to their potential applications in various fields. Here, we have studied the induction of chirality in atomically thin (0.6–1.2 nm thick) ZnSe and CdSe nanoplatelets grown by a colloidal method and coated with L-cysteine and N-acetyl-L-cysteine ligands. We conducted an analysis of the optical and chiroptical properties of atomically thin ZnSe and CdSe nanoplatelets, which was supplemented by a detailed analysis of the composition and coordination of ligands. Different signs of circular dichroism were shown for L-cysteine and N-acetyl-L-cysteine ligands, confirmed by different coordination of these ligands on the basal planes of nanoplatelets. A maximum value of the dissymmetry factor of (2–3) × 10<sup>−3</sup> was found for N-acetyl-L-cysteine ligand in the case of the thinnest nanoplatelets.https://www.mdpi.com/1996-1944/16/3/10732D semiconductorschiralityCdSe nanoplateletsZnSe nanoplateletscircular dichroismexcitons |
| spellingShingle | Daria A. Kurtina Valeria P. Grafova Irina S. Vasil’eva Sergey V. Maksimov Vladimir B. Zaytsev Roman B. Vasiliev Induction of Chirality in Atomically Thin ZnSe and CdSe Nanoplatelets: Strengthening of Circular Dichroism via Different Coordination of Cysteine-Based Ligands on an Ultimate Thin Semiconductor Core Materials 2D semiconductors chirality CdSe nanoplatelets ZnSe nanoplatelets circular dichroism excitons |
| title | Induction of Chirality in Atomically Thin ZnSe and CdSe Nanoplatelets: Strengthening of Circular Dichroism via Different Coordination of Cysteine-Based Ligands on an Ultimate Thin Semiconductor Core |
| title_full | Induction of Chirality in Atomically Thin ZnSe and CdSe Nanoplatelets: Strengthening of Circular Dichroism via Different Coordination of Cysteine-Based Ligands on an Ultimate Thin Semiconductor Core |
| title_fullStr | Induction of Chirality in Atomically Thin ZnSe and CdSe Nanoplatelets: Strengthening of Circular Dichroism via Different Coordination of Cysteine-Based Ligands on an Ultimate Thin Semiconductor Core |
| title_full_unstemmed | Induction of Chirality in Atomically Thin ZnSe and CdSe Nanoplatelets: Strengthening of Circular Dichroism via Different Coordination of Cysteine-Based Ligands on an Ultimate Thin Semiconductor Core |
| title_short | Induction of Chirality in Atomically Thin ZnSe and CdSe Nanoplatelets: Strengthening of Circular Dichroism via Different Coordination of Cysteine-Based Ligands on an Ultimate Thin Semiconductor Core |
| title_sort | induction of chirality in atomically thin znse and cdse nanoplatelets strengthening of circular dichroism via different coordination of cysteine based ligands on an ultimate thin semiconductor core |
| topic | 2D semiconductors chirality CdSe nanoplatelets ZnSe nanoplatelets circular dichroism excitons |
| url | https://www.mdpi.com/1996-1944/16/3/1073 |
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