Switching CdSe quantum dot luminescence with a-Si:H
| Autor: | van Dj Heuvel, Ruud E. I. Schropp, van Snf Duren, D Mitoraj, Yinghuan Kuang, Hans C. Gerritsen, M. Di Vece |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
business.industry Mechanical Engineering Physics::Optics Bioengineering General Chemistry Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Optical switch law.invention Switching time Mechanics of Materials Quantum dot laser law Quantum dot Electro-absorption modulator Solar cell Optoelectronics General Materials Science Charge carrier Electrical and Electronic Engineering business Luminescence |
| Zdroj: | Nanotechnology. 24:315202 |
| ISSN: | 1361-6528 0957-4484 |
| Popis: | Dynamical control of the luminescence of quantum dots is highly important for technology in the field of telecommunication, displays, and photovoltaics. In this work we use an a-Si:H solar cell structure in which CdSe quantum dots are sandwiched. By applying a positive potential over the device, charge carriers generated in the quantum dots are transported to the a-Si:H layer and transformed into electrical energy, changing the luminescence intensity with a switching time lower than 60 ms. This is a promising new step towards using quantum dots in optical switching devices. |
| Databáze: | OpenAIRE |
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