Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Taylor, Derrick Allan | - |
dc.contributor.author | Teku, Justice Agbeshie | - |
dc.contributor.author | Cho, Sinyoung | - |
dc.contributor.author | Chae, Weon-Sik | - |
dc.contributor.author | Jeong, Seock-Jin | - |
dc.contributor.author | Lee, Jong-Soo | - |
dc.date.accessioned | 2021-10-15T07:00:21Z | - |
dc.date.available | 2021-10-15T07:00:21Z | - |
dc.date.created | 2021-07-02 | - |
dc.date.issued | 2021-06 | - |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/15516 | - |
dc.description.abstract | Indium phosphide (InP)-based quantum dots (QDs) are widely studied as environmentally friendly light emitters for display applications. However, the synthesis of InP QDs with optical properties that meet high color quality as comparable with cadmium (Cd)- and lead (Pb)-based QDs is challenging. In this article, we present the synthesis of surface-modified bright green luminescence InP core-shell quantum dots (CS-QDs) with the narrowest full width at half-maximum (fwhm) of 33 nm, absolute quantum yield (QY) of 71%, and an absorption spectra valley/depth (V/D) ratio of 0.61 after a size selection purification process. Our approach first emphasizes the heating temperatures for InP growth and second on the importance of surface stabilization of this system. We developed a two-step heating-up process to grow In(Zn)P core and coated inorganic shell with ZnSe/ZnSeS/ZnS composition. In situ surface treatment with zinc chloride (ZnCl2) and 1-octanol was carried out to enhance the PLQY and improve the surface passivation of the CS-QDs. Optical spectroscopy and surface characterization techniques including nuclear magnetic resonance (NMR), X-ray photoelectron spectroscopy (XPS), and infrared (IR) spectroscopy were used to analyze the properties of the CS-QDs. We suggest that this work motivates future development and optimization of surface chemistry of InP CS-QDs to enable the full access and realization of their luminescence efficiency in high-color-quality cadmium (Cd)-free displays. © | - |
dc.language | English | - |
dc.publisher | American Chemical Society | - |
dc.title | Importance of Surface Functionalization and Purification for Narrow FWHM and Bright Green-Emitting InP Core-Multishell Quantum Dots via a Two-Step Growth Process | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acs.chemmater.1c00348 | - |
dc.identifier.wosid | 000665651400011 | - |
dc.identifier.scopusid | 2-s2.0-85108421923 | - |
dc.identifier.bibliographicCitation | Chemistry of Materials, v.33, no.12, pp.4399 - 4407 | - |
dc.description.isOpenAccess | FALSE | - |
dc.subject.keywordPlus | Surface treatment | - |
dc.subject.keywordPlus | X ray photoelectron spectroscopy | - |
dc.subject.keywordPlus | Zinc chloride | - |
dc.subject.keywordPlus | Zinc Selenide | - |
dc.subject.keywordPlus | Absolute quantum yields | - |
dc.subject.keywordPlus | Cadmium | - |
dc.subject.keywordPlus | Chlorine compounds | - |
dc.subject.keywordPlus | II-VI semiconductors | - |
dc.subject.keywordPlus | III-V semiconductors | - |
dc.subject.keywordPlus | Ion beams | - |
dc.subject.keywordPlus | Luminescence | - |
dc.subject.keywordPlus | Nanocrystals | - |
dc.subject.keywordPlus | Core-shell quantum dots | - |
dc.subject.keywordPlus | Luminescence efficiencies | - |
dc.subject.keywordPlus | Multishell quantum dots | - |
dc.subject.keywordPlus | Nuclear magnetic resonance(NMR) | - |
dc.subject.keywordPlus | Surface characterization | - |
dc.subject.keywordPlus | Surface Functionalization | - |
dc.subject.keywordPlus | Surface stabilization | - |
dc.subject.keywordPlus | Indium phosphide | - |
dc.subject.keywordPlus | Nuclear magnetic resonance | - |
dc.subject.keywordPlus | Nuclear magnetic resonance spectroscopy | - |
dc.subject.keywordPlus | Optical properties | - |
dc.subject.keywordPlus | Passivation | - |
dc.subject.keywordPlus | Purification | - |
dc.subject.keywordPlus | Semiconducting indium phosphide | - |
dc.subject.keywordPlus | Semiconductor quantum dots | - |
dc.subject.keywordPlus | Surface chemistry | - |
dc.citation.endPage | 4407 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 4399 | - |
dc.citation.title | Chemistry of Materials | - |
dc.citation.volume | 33 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry; Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Materials Science, Multidisciplinary | - |
dc.type.docType | Article | - |
There are no files associated with this item.