| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1525236 | Materials Chemistry and Physics | 2010 | 5 Pages |
Abstract
Surface modification of quantum dots (QDs) for improved photo and physicochemical properties is a topic of potential technological interest. Herein, we report on the synthesis of aggregation free 11-mercaptoundecanoic acid and tetraaniline (TA) capped CdS QDs with narrow size distribution (∼2.3 nm diameter), which are further characterized using UV–visible spectroscopy, photoluminescence spectroscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. The TA capped CdS QDs show improved photoluminescence and photostability, which is attributed to the effective grafting of TA on CdS QDs through N-atoms, changing the surface chemical environment and facilitating charge transfer.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Wen-Yin Chen, Anil Vithal Ghule, Jia-Yaw Chang, Bo-Jung Chen, Jen-Yu Liu, Shin-Hwa Tzing, Yong-Chien Ling,