21 February 2018 Three-dimensional (3D) concave OLEDs fabricated by a multilayer coating technique of electrospray deposition (ESD)
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Abstract
Organic light-emitting diode (OLED) materials were deposited directly on a concave glass surface using the electrospray deposition (ESD) technique to obtain three-dimensional (3D) multilayer OLEDs. Deposition without dissolving the underlying layer was realized by tuning the mixture ratio of the mixed solvents. A simulation of the electric force lines was used to assist in obtaining a uniform deposition on a 3D-curved substrate. The active layers of the OLED were sequentially prepared on watch glasses by the ESD technique. A green light emission from the concave device indicates that the ESD technique is a viable solution-processing technique for developing 3D multilayer OLEDs.
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Tetsuya Aoyama, Hirokazu Tanaka, Yusuke Tajima, "Three-dimensional (3D) concave OLEDs fabricated by a multilayer coating technique of electrospray deposition (ESD)", Proc. SPIE 10529, Organic Photonic Materials and Devices XX, 1052906 (21 February 2018); doi: 10.1117/12.2285793; https://doi.org/10.1117/12.2285793
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