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. 2017 Aug 24;8:343. doi: 10.1038/s41467-017-00153-y

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© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — In vitro etching of various QDs with Ag-TS. PL spectra of the QDs before (red) and after (blue) etching are shown. The emission peaks of the QDs are also listed. The boxed panels show fluorescence images of the QD aqueous solutions with or without etching. QDs synthesized in-house (i.e., Mn/ZnS-QD) and high-quality commercial QDs (i.e., CdSe/ZnS-QD, InP/ZnS-QD, and CIS/ZnS-QD) were each etchable by Ag-TS. The Mn/ZnS-QD, InP/ZnS- and CIS/ZnS-QDs had coatings of 3-mercaptopropionic acid. Amphiphiliccoating with HS-(CH₂)₁₁-(OCH₂CH₂)₆-NH₂ prevented CIS/ZnS-QD from being etched