Chinese Optics Letters, Volume. 4, Issue 6, 353(2006)

Enhancement of light extraction efficiency in OLED with two-dimensional photonic crystal slabs

Rongjin Yan and Qingkang Wang*
Author Affiliations
  • Institute of Micro and Nano-Science and Technology, National Key Laboratory of Nano/Micro Fabrication Technology, Shanghai Jiao Tong University, Shanghai 200030
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    Light extraction efficiency of organic light emitting diode (OLED) based on various photonic crystal slab (PCS) structures was studied. By using the finite-difference time-domain (FDTD) method, we investigated the effect of several parameters, including filling factor and lattice constant, on the enhancement of light extraction efficiency of three basic PCSs, and got the most effective one. Two novel designs of "interlaced" and "double-interlaced" PCS structures based on the most effective basic PCS structure were introduced, and the "interlaced" one was proved to be even more efficient than its prototype. Large enhancement of light extraction efficiency resulted from the coupling to leaky modes in the expended light cone of a band structure, the diffraction in the space between columns, as well as the strong scattering at indium-tin-oxide/glass interfaces.

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    Rongjin Yan, Qingkang Wang. Enhancement of light extraction efficiency in OLED with two-dimensional photonic crystal slabs[J]. Chinese Optics Letters, 2006, 4(6): 353

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    Paper Information

    Received: Nov. 2, 2005

    Accepted: --

    Published Online: Jun. 12, 2006

    The Author Email: Qingkang Wang (wangqingkang@sjtu.edu.cn)

    DOI:

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