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Down conversion materials

Prof Partha Dutta, Ru-Shi Liu, Dr Franz Wenzl

  1. Research

    A comprehensive discussion on colour conversion element design of phosphor converted LEDs

    For a systematic approach to improve the white light quality of phosphor converted light-emitting diodes (LEDs) for general lighting applications it is imperative to get the individual sources of error for cor...

    Susanne Schweitzer, Christian Sommer, Paul Hartmann, Paul Fulmek, Johann Nicolics, Peter Pachler, Hans Hoschopf, Franz Schrank, Gregor Langer and Franz P Wenzl

    Journal of Solid State Lighting 2014 1:18

    Published on: 8 November 2014

  2. Research article

    Thermal effects in (oxy)nitride phosphors

    Technologies that control the chemical composition of white lighting-emitting diodes are promising means to enhance thermal properties and renew spectra generation. Although (oxy)nitride red phosphors have bee...

    Chun Che Lin and Ru-Shi Liu

    Journal of Solid State Lighting 2014 1:16

    Published on: 24 September 2014

  3. Research article

    A high color purity red emitting phosphor CaYAlO4:Mn4+ for LEDs

    An intense red phosphor, CaYAlO4:Mn4+, was developed by solid state reaction. The photoluminescence excitation and emission spectra, concentration effect, thermal-dependent luminescence quenching properties and d...

    Yan Chen, Meng Wang, Jing Wang, Mingmei Wu and Chengxin Wang

    Journal of Solid State Lighting 2014 1:15

    Published on: 27 August 2014

  4. Research

    Enhancement of luminous efficiency by hybrid structure for warm white light-emitting diodes

    This study demonstrates the hybrid structure with high lumen efficiency and uniform angular-dependent correlated color temperature (CCT) for warm white LED. Compared to the conventional structures, the hybrid ...

    Chin-Wei Sher, Kuo-Ju Chen, Chien-Chung Lin, Hau-Vei Han, Bing-Cheng Lin, Kuan-Yu Wang, Jie-Ru Li, Mei-Tan Wang, Jung-Min Hwang, Min-Hsiung Shih, Chien-Chung Fu and Hao-Chung Kuo

    Journal of Solid State Lighting 2014 1:9

    Published on: 14 July 2014