Reversible multi-color electrofluorescence switching

Seogjae Seo; Chihyun Park; Xu Yang; Jungmok You; Yuna Kim; Eunkyoung Kim

doi:10.1117/12.907582

17 February 2012 Reversible multi-color electrofluorescence switching

Seogjae Seo, Chihyun Park, Xu Yang, Jungmok You, Yuna Kim, Eunkyoung Kim

Proceedings Volume 8258, Organic Photonic Materials and Devices XIV; 82580N (2012) https://doi.org/10.1117/12.907582
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

The color of the electrofluorescence switching device was tuned to white by adding extra electroactive fluorophores with different emission colors. The reversible electrochemistry of fluorophores between neutral and anion radical was accompanied by fluorescence on and off, respectively, allowing fluorescence switching. Since the fluorophores have different emission color and also different redox potential, emission color could be further modified by quenching of the particular emission with precise voltage control. A reversible multicolor switching device was prepared by packing electroactive fluorophores blend of polymer electrolyte between ITO electrodes, and its emission color was examined with various fluorophore contents and potentials.

Citation Download Citation

Seogjae Seo, Chihyun Park, Xu Yang, Jungmok You, Yuna Kim, and Eunkyoung Kim "Reversible multi-color electrofluorescence switching", Proc. SPIE 8258, Organic Photonic Materials and Devices XIV, 82580N (17 February 2012); https://doi.org/10.1117/12.907582

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