Optoelectronic devices, methods of fabrication thereof and materials therefor
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United States of America Patent
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Dec 5, 2017
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May 19, 2016
app pub date -
Jul 2, 2014
filing date -
Jul 2, 2013
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Abstract
An optoelectronic signal translating device having a region containing rare earth or transition metal ions for generation of radiation of a predetermined wavelength. Said region includes an organic complex comprising a ligand adapted to enhance the emission of radiation and a chromophore separately co-operable with a radiation source of wavelength not greater than that of said predetermined desired radiation. Said chromophore can be excited to cross-couple with the upper permitted energy state of said rare earth or transition metal ions, thereby generating said predetermined desired radiation by subsequent decay of said ions to the permitted lower energy state.
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