Photoinduced Charge Transfer within Polyaniline-Encapsulated Quantum Dots Decorated on Graphene
- 15 July 2013
- journal article
- research article
- Published by American Chemical Society (ACS) in ACS Applied Materials & Interfaces
- Vol. 5 (16), 8105-8110
- https://doi.org/10.1021/am402182z
Abstract
A new method to enhance the stability of quantum dots (QDs) in aqueous solution by encapsulating them with conducting polymer polyaniline was reported. The polyaniline-encapsulated QDs were then decorated onto graphene through π–π interactions between graphene and conjugated polymer shell of QDs, forming stable polyaniline/QD/graphene hybrid. A testing electronic device was fabricated using the hybrid in order to investigate the photoinduced charge transfer between graphene and encapsulated QDs within the hybrid. The charge transfer mechanism was explored through cyclic voltammetry and spectroscopic studies. The hybrid shows a clear response to the laser irradiation, presenting a great advantage for further applications in optoelectronic devices.Keywords
This publication has 43 references indexed in Scilit:
- Photoinduced Charge Transfer in Porphyrin–Cobaloxime and Corrole–Cobaloxime HybridsThe Journal of Physical Chemistry C, 2013
- Synthesis of a CdSe–graphene hybrid composed of CdSe quantum dot arrays directly grown on CVD-graphene and its ultrafast carrier dynamicsNanoscale, 2012
- A roadmap for grapheneNature, 2012
- Fortification of CdSe Quantum Dots with Graphene Oxide. Excited State Interactions and Light Energy ConversionJournal of the American Chemical Society, 2012
- Nanonet as a scaffold with targeted functionalitiesJournal of Materials Chemistry, 2012
- Flexible photovoltaic cells based on a graphene–CdSe quantum dot nanocompositeNanoscale, 2011
- Highly conducting graphene sheets and Langmuir–Blodgett filmsNature Nanotechnology, 2008
- Hybrid Solar Cells with Prescribed Nanoscale Morphologies Based on Hyperbranched Semiconductor NanocrystalsNano Letters, 2006
- Di‐Channel Polyfluorene Containing Spiro‐Bridged Oxadiazole BranchesMacromolecular Rapid Communications, 2005
- Synthesis, processing and material properties of conjugated polymersPolymer, 1996