期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 9, 期 17, 页码 5682-5688出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1tc00421b
关键词
-
资金
- European Research Council (ERC) under the European Union [725165]
- Spanish Ministry of Economy and Competitiveness (MINECO)
- 'Fondo Europeo de Desarrollo Regional' (FEDER) [TEC2017-88655-R, EQC2019-005797-P]
- program CERCA
- Spanish Ministry of Economy and Competitiveness through the 'Severo Ochoa' Programme for Centres of Excellence in RD
- European Research Council (ERC) [725165] Funding Source: European Research Council (ERC)
Low cost, environmentally friendly multinary colloidal quantum dots with bright, narrow-width, tunable near-infrared luminescence are promising alternatives to Cd and Pb chalcogenide QDs. The demonstrated Pb/Cd free solution-processed colloidal luminescent Ag2ZnSnS4-ZnS core-shell QDs show a narrow photoluminescence full width at half maximum (fwhm) in the first NIR window and achieve tunable emission with high PL quantum yield (PLQY).
Low cost, multinary colloidal quantum dots (QDs) based on environmentally friendly elements, with bright, narrow-width, tunable near-infrared (NIR) luminescence are promising alternatives to Cd and Pb chalcogenide QDs for in vivo bio-imaging, LED and sensing applications. Herein, we demonstrate Pb/Cd free solution-processed colloidal luminescent Ag2ZnSnS4-ZnS (AZTS-ZnS) core-shell QDs with precise control over the ZnS shell thickness and thereby its optical properties. Unlike indium based multinary (I-III-VI group) core-shell QDs these nanocrystals show a narrow photoluminescence (PL) full width at half maximum (fwhm) of 105-110 meV in the first NIR window. By monitoring the starting AZTS core size, we achieve tunable emission over a small NIR window in these QDs with the best PL quantum yield (PLQY) of 17.4%.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据