White light-emitting, alternating-current electroluminescent device driven by in-plane electric field
Organic and Hybrid Light Emitting Materials and Devices XXIV(2020)
Abstract
Here we show a novel EL device architecture: a durable/flexible textile-fiber-embedded PDMS+ZnS composite, driven by an in-plane electric field, which eliminated the requirement of highly transparent planar electrodes [1]. In our work, electrically conductive textile fibers were used as electrodes embedded in a PDMS+ZnS composite with parallel orientation. Using this system, we demonstrated various white colors-emitting ACEL devices by simple mixing of RGB EL phosphors with various weight ratios. We also found that the white light shows CIE coordinates of (0.338, 0.344) in 5:5 (blue:orange) mixing weight ratio condition, which is highly close to pure white color. We believe that such simple realization of RGB as well as various white lights suggest the easy applicability of in-plane electric field driven ACEL device in a wide range of colorful light-emitting systems.
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Key words
electric field,light-emitting,alternating-current,in-plane
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