Mandal, Sadananda ; Bera, Rajesh ; Mondal, Bodhisatwa ; Nayak, Sandip K. ; Patra, Amitava (2016) A ternary system of quantum dot – Porphyrin – Semiconducting organic nanoparticles for light harvesting Synthetic Metals, 222 . pp. 76-83. ISSN 0379-6779
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.synthmet.2016.03.017
Abstract
Inorganic–organic semiconductor hybrid nanostructures remain a frontier area of research to design optoelectronic, photovoltaic and light harvesting devices because of efficient energy or charge transfer process. Here, we have designed a system where inorganic semiconducting nanocrystals (Cd0.52Zn0.48S) are encapsulated into semiconducting organic poly (9-vinylcarbazole) [PVK] nanoparticles with 5-(4-aminophenyl)-10,15,20-triphenyl-21,23H-porphyrin (APTPP) molecule. Steady state and time resolved spectroscopic study reveal the efficient energy transfer from host PVK nanoparticle to QD and prophyrin molecule which is found to be cascade energy transfer. The energy transfer enhances from 68% to 86% by incorporating porphyrin molecule into QD doped PVK nanoparticles. This high efficiency of cascade energy transfer opens further prospects to design new porphyrin and quantum dot based functional polymer nanoparticles for the application in efficient light harvesting system and other photodriven devices.
Item Type: | Article |
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Source: | Copyright of this article belongs to Elsevier Science. |
ID Code: | 104659 |
Deposited On: | 01 Dec 2017 11:17 |
Last Modified: | 01 Dec 2017 11:17 |
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