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Hybrid organic/inorganic semiconductor nanostructures with highly efficient energy transfer

Journal of Materials Chemistry, ISSN: 0959-9428, Vol: 22, Issue: 21, Page: 10816-10820
2012
  • 43
    Citations
  • 0
    Usage
  • 35
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    43
    • Citation Indexes
      43
  • Captures
    35

Article Description

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.

Bibliographic Details

Diana Savateeva; Yury P. Rakovich; Dzmitry Melnikau; Vladimir Lesnyak; Nikolai Gaponik

Royal Society of Chemistry (RSC)

Chemistry; Materials Science

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