Average arrival time: An alternative approach for studying fluorescent behavior of single quantum dots
| Autor: | Yonglei Sun, Jing Zhao |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
Photon Photoluminescence Condensed Matter::Other business.industry Physics::Optics 02 engineering and technology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Fluorescence Arrival time 0104 chemical sciences law.invention Exponential function Condensed Matter::Materials Science law Quantum dot Intermittency Optoelectronics Colloidal quantum dots Physical and Theoretical Chemistry 0210 nano-technology business |
| Zdroj: | Chinese Journal of Chemical Physics. 31:595-598 |
| ISSN: | 2327-2244 1674-0068 |
| DOI: | 10.1063/1674-0068/31/cjcp1806149 |
| Popis: | Due to photoluminescence intermittency of single colloidal quantum dots (QDs), the traditional exponential fluorescence lifetime analysis is not perfect to characterize QDs' fluorescent emission behavior. In this work we used the time-tagged time-resolved (TTTR) mode to record the fluorescent photons from single QDs. We showed that this method is compatible with the traditional lifetime analysis. In addition, by constructing the trajectory over time and the distribution of average arrival time (AAT) of the fluorescent photons, more details about the emission behavior of QDs were revealed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|