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Issue 12, 2013
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Performance of light-emitting-diode based on quantum dots

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Abstract

Light-emitting diodes (LEDs) based on colloidal quantum dots (QDs) have attracted considerable attention due to their potential in applications such as color-saturated displays and white light with high color-rendering index. However, cadmium-based QD-LEDs are strictly regulated in industrial applications because of the high toxicity of cadmium. As an alternative, InP-based cadmium-free QDs are recommended owing to their wide emission range that is comparable to that of CdSe, and their environmentally friendly properties when applied to QD-LEDs and white QD-LEDs. This feature article provides an overview of QDs' merits in display and light-emitting applications as well as a discussion of their color tunability, photo-stability, and high luminescence efficiency. We will include optical down-conversion devices using various QDs, electroluminescent devices based on organic and inorganic charge-transporting layers, and printing methods using cadmium based and cadmium free QDs.

Graphical abstract: Performance of light-emitting-diode based on quantum dots

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Publication details

The article was received on 28 Jan 2013, accepted on 30 Mar 2013 and first published on 08 Apr 2013


Article type: Feature Article
DOI: 10.1039/C3NR00496A
Citation: Nanoscale, 2013,5, 5205-5214
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    Performance of light-emitting-diode based on quantum dots

    S. Kim, S. H. Im and S. Kim, Nanoscale, 2013, 5, 5205
    DOI: 10.1039/C3NR00496A

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