Stokes-shift engineered CdSe/CdS/Cd1-xZnxSe1-ySy nanoplatelets with tunable emission wavelength
- Authors
- Jee, S.; Jung, J.
- Issue Date
- 31-May-2022
- Publisher
- Elsevier B.V.
- Keywords
- Core/shell platelet; II-VI semiconductor; Photoluminescence decay; Surface passivation
- Citation
- Thin Solid Films, v.750
- Journal Title
- Thin Solid Films
- Volume
- 750
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/27553
- DOI
- 10.1016/j.tsf.2022.139203
- ISSN
- 0040-6090
- Abstract
- A facile synthetic route to preparing CdSe/CdS/Cd1-xZnxSe1-ySy core/shell/shell nanoplatelets (NPLs) was introduced via a sequential passivation of plain CdSe NPLs with CdS and Cd1-xZnxSe1-ySy shell. The CdS/Cd1-xZnxSe1-ySy shell was passivated by 1-dodecanethiol and cadmium oleate and zinc oleate precursors by capitalizing on their chemical reactivity difference. Red-shift of the absorption and emission positions of prepared CdSe/CdS/Cd1-xZnxSe1-ySy NPLs was observed due to the delocalization of electron in the shell. Resulting core/shell NPLs exhibited large Stokes’ shift which can possibly reduce re-absorption. Core/shell/shell NPLs exhibited excellent photo-stability compared to plain CdSe NPLs. Photoluminescence decays of resulting core/shell NPLs was studied. The shape and size of NPLs was characterized using high-resolution transmission electron microscope. © 2022 Elsevier B.V.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - ETC > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/27553)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.