Solution-processable aqueous dispersions of organic semiconductors for optoelectronic applications
발표자
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초록
내용
Efficient conversion of light from short to longer wavelengths using color conversion layers (CCLs) underpins the successful operation of numerous contemporary display and lighting technologies. Here, the utility of surfactants in the synthesis and processing of organic nanoparticles (ONPs) by thoroughly characterizing the effect of ionic and non-ionic surfactants on the properties of fluorescent ONPs will be introduced. We identify surfactant processing conditions that result in nearly 100 % conversion of organic fluorophores into sub-micrometer particles, or nano-dots, with outstanding performance as CCLs)\. Such water dispersions are environmentally benign and efficiently convert light. They can be used for a range of fluorophores covering a full spectral gamut, with excellent color purity, including full-width at half-maximum (FWHM) values as low as 21 nm. Compared to inorganic (InP) reference CCLs, the organic nano-dot based CCLs show superior color conversion efficiency and substantially improved long-term stability.