Color-tunable light emitting diodes based on quantum dot suspension

    Authors

    Z. Y. Luo; H. W. Chen; Y. F. Liu; S. Xu;S. T. Wu

    Comments

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    Abbreviated Journal Title

    Appl. Optics

    Keywords

    RENDERING INDEX; EFFICIENT; DISPLAYS; CLUSTERS; LEDS; LENS; LCD; Optics

    Abstract

    We propose a color-tunable light emitting diode (LED) consisting of a blue LED as the light source and quantum dot (QD) suspension as the color-conversion medium. The LED color temperature can be controlled by varying the liquid volume of each QD suspension with different photoluminescence colors. We simulate and optimize the light efficiency and color quality of the color-tunable LED and also fabricated a prototype to prove concept. The proposed color-tunable LED exhibits several advantages such as excellent color-rendering property, simple structure and driving mechanism, as well as high energy efficiency. Its potential applications include circadian rhythm regulation and healthy lighting. (C) 2015 Optical Society of America

    Journal Title

    Applied Optics

    Volume

    54

    Issue/Number

    10

    Publication Date

    1-1-2015

    Document Type

    Article

    Language

    English

    First Page

    2845

    Last Page

    2850

    WOS Identifier

    WOS:000352152400041

    ISSN

    1559-128X

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