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Hybrid organic/inorganic semiconductor nanostructures with highly efficient energy transfer
- Source :
- Digital.CSIC. Repositorio Institucional del CSIC, instname
- Publication Year :
- 2012
- Publisher :
- Royal Society of Chemistry (UK), 2012.
-
Abstract
- Using electro-static assembly of complementary organic (cyanine dye) and inorganic (quantum dots) building blocks we report on formation of an advanced nanohybrid system with highly efficient nonradiative energy transfer properties. In contrast to previous approaches, formation of J-aggregates in cyanine dye solution was triggered by direct injection of as-synthesized colloidal CdTe quantum dots without any additional surface treatment. The optical properties of formed hybrid aggregates have been investigated by absorption and photoluminescence spectroscopy and fluorescence lifetime imaging microscopy. A quantum dot/J-aggregate system shows the enhanced absorption in visible and ultraviolet parts of the spectrum typical of quantum dots, along with the narrow emission linewidth and fast recombination rate characteristic of the J-band emitters. These quantum dot/J-aggregate hybrid systems may have applications in light harvesting systems with the extended spectral absorption as well as optical sensors and optoelectronic devices. © The Royal Society of Chemistry 2012.<br />This work was in part financially supported by Ikerbasque Visiting Fellowship (NG). DS and YR acknowledge the support received from the European Science Foundation (activity PLASMON - BIONANOSENSE).
- Subjects :
- Materials science
Photoluminescence
business.industry
General Chemistry
medicine.disease_cause
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
chemistry.chemical_compound
Laser linewidth
chemistry
Quantum dot
Quantum dot laser
Materials Chemistry
medicine
Optoelectronics
Cyanine
business
Absorption (electromagnetic radiation)
Spectroscopy
Ultraviolet
Subjects
Details
- ISSN :
- 13645501 and 09599428
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Chemistry
- Accession number :
- edsair.doi.dedup.....75abc8a9e99a7523ab6f082ab2fe957d