Impact of noble metal nanostructures on surface trapping state of semiconductor quantum dots
| Autor: | Xing He, Qingkun Meng, Ya-nan Wen, Wenzhi Wu, Yanqiang Yang, Yuqiang Liu, Yunfei Song, Guoyang Yu, Ai-Hua Li, Zhenling Yang |
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| Rok vydání: | 2010 |
| Předmět: |
Condensed Matter::Quantum Gases
Resonant inductive coupling Photoluminescence Materials science Physics and Astronomy (miscellaneous) Physics::Instrumentation and Detectors business.industry Exciton Physics::Optics Trapping engineering.material Nanosecond Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter::Materials Science Quantum dot Quantum dot laser engineering Optoelectronics Noble metal business |
| Zdroj: | Applied Physics Letters. 96:043118 |
| ISSN: | 1077-3118 0003-6951 |
| DOI: | 10.1063/1.3298018 |
| Popis: | The impact of noble metal nanostructures on the surface trapping state of semiconductor quantum dots was investigated by taking nanosecond time resolved photoluminescence measurements. It was observed that nonradiative resonant energy transfer from the excitonic state of quantum dots to Au nanofilm reduced the lifetime and intensity of excitonic state emission. No nonradiative resonant energy transfer from surface trapping state to Au nanofilm was observed. It is possibly implied that noble metal nanostructures have no impact on the surface trapping state of semiconductor quantum dots. |
| Databáze: | OpenAIRE |
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