{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T07:50:26Z","timestamp":1775029826978,"version":"3.50.1"},"reference-count":46,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100006769","name":"Russian Science Foundation","doi-asserted-by":"publisher","award":["22-13-00101"],"award-info":[{"award-number":["22-13-00101"]}],"id":[{"id":"10.13039\/501100006769","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Chiral semiconductor nanostructures and nanoparticles are promising materials for applications in biological sensing, enantioselective separation, photonics, and spin-polarized devices. Here, we studied the induction of chirality in atomically thin only two-monolayer-thick CdSe nanoplatelets (NPLs) grown using a colloidal method and exchanged with L-alanine and L-phenylalanine as model thiol-free chiral ligands. We have developed a novel two-step approach to completely exchange the native oleic acid ligands for chiral amino acids at the basal planes of NPLs. We performed an analysis of the optical and chiroptical properties of the chiral CdSe nanoplatelets with amino acids, which was supplemented by an analysis of the composition and coordination of ligands. After the exchange, the nanoplatelets retained heavy-hole, light-hole, and spin-orbit split-off exciton absorbance and bright heavy-hole exciton luminescence. Capping with thiol-free enantiomer amino acid ligands induced the pronounced chirality of excitons in the nanoplatelets, as proven by circular dichroism spectroscopy, with a high dissymmetry g-factor of up to 3.4 \u00d7 10\u22123 achieved for heavy-hole excitons in the case of L-phenylalanine.<\/jats:p>","DOI":"10.3390\/ma17010237","type":"journal-article","created":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T13:02:58Z","timestamp":1704114178000},"page":"237","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Chirality in Atomically Thin CdSe Nanoplatelets Capped with Thiol-Free Amino Acid Ligands: Circular Dichroism vs. Carboxylate Group Coordination"],"prefix":"10.3390","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3693-2179","authenticated-orcid":false,"given":"Daria A.","family":"Kurtina","sequence":"first","affiliation":[{"name":"Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3195-7107","authenticated-orcid":false,"given":"Vladimir B.","family":"Zaytsev","sequence":"additional","affiliation":[{"name":"Department of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2350-0521","authenticated-orcid":false,"given":"Roman B.","family":"Vasiliev","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia"},{"name":"Department of Materials Science, Lomonosov Moscow State University, 119991 Moscow, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,1,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"12457","DOI":"10.1021\/acsnano.1c06959","article-title":"Chiral Nanostructures: New Twists","volume":"15","author":"Kotov","year":"2021","journal-title":"ACS Nano"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"8041","DOI":"10.1021\/acs.chemrev.6b00755","article-title":"Chiral Inorganic Nanostructures","volume":"117","author":"Ma","year":"2017","journal-title":"Chem. 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