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Zinc doped InP colloidal quantum dotsтезисы доклада
- Авторы: Mordvinova N., Vinokurov A., Kuznetsova T., Dorofeev S., Lebedev O.
- Сборник: International Nanotechnology Conference Nanotech France 2015
- Тезисы
- Год издания: 2015
- Место издания: Setcor Paris, France
- Аннотация: Quantum dots (QDs) have very wide scope of applications: in biomedicine, for the construction of photodetectors, solar cells, and electroluminescent devices among them the most interesting QD-LED displays. The II-VI QDs, for example CdSe and CdS, have been studied extensively, however have serious disadvantage – high toxicity of material, that’s why another systems, such as A3B5-system, should be investigated. InP is a promising material for the creation of eco-friendly materials because it is more stable than II-VI materials and does not contain toxic elements, such as Cd, Hg, or Se. One of the ways to produce InP QDs is phosphine synthetic route, which allows to obtain QDs with narrow size distribution and good crystallinity but quite low photoluminescence intensity. This work is devoted to doping of InP QDs with zinc using gaseous phosphine as phosphorous precursor and myristic acid as stabylizer. We demonstrate how zinc affects the optical properties of QDs. We report the influence of different parameters (zinc amount, stabilizer, temperature and duration of synthesis) on luminescence wavelength and intensity. In addition we show that doping with zinc is accompanied with zinc-shell covering and is an effective way to improve optical properties of InP QDs.
- Добавил в систему: Винокуров Александр Александрович