Speckle image holography modulated full-color organic light-emitting diodes with high efficiency and engineered emission profile |
| |
| Affiliation: | 1. Faculty of Mathematics and Physics, Huaiyin Institute of Technology, Huai''an, 223003, PR China;2. Institut für Physik, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 6, 12489, Berlin, Germany;3. Department of Materials Science and Engineering, Monash University, Clayton, Victoria, 3800, Australia;4. Faculty of Mechanical Engineering, Huaiyin Institute of Technology, Huai''an, 223003, PR China;5. Jiangsu Key Laboratory for Environment Functional Materials, School of Chemical Biology and Materials Engineering, Suzhou University of Science and Technology, Suzhou, 215009, PR China;1. Department of Materials Science and Engineering, University of Florida, Gainesville, FL, 32611, United States;2. Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC, 27607, United States;1. Department of Chemistry, Fu Jen Catholic University, New Taipei City 24205, Taiwan;2. Department of Opto-Electronic Engineering, National Dong Hwa University, Hualien 97401, Taiwan;1. Department of Physics, Ajou University, Suwon 443-749, South Korea;2. Department of Energy Systems Research, Ajou University, Suwon 443-749, South Korea;1. Wuhan University, 8 East Lake South Road, Wuchang Dist., Wuhan, 430072, China;2. International and Inter University Centre for Nanoscience and Nanotechnology, School of Chemical Sciences, Mahatma Gandhi University, Priyadarshini Hills P. O. Kottayam, Kerala, 686560, India;3. Liquid Crystal Research Laboratory (LCRL), Bannari Amman Institute of Technology, Sathyamangalam, 638 401, India |
| |
| Abstract: | Enlightened by holography metasurfaces for controlling the propagation of light, speckle image holography nanostructures were introduced into both fluorescent and phosphorescent OLEDs in order to achieve high efficiency and engineered emission profile. The resulting current efficiency and external quantum efficiency of the nanostructured fluorescent green emission OLEDs were enhanced by up to 99% and 104%, respectively. This enhancement feature is comparable to that of phosphorescent red- and blue-emission OLEDs. Furthermore, the enhancement ratios were retained approximately as a constant when the viewing angle varied from −60° to 60° for all three color devices. Experimental and theoretical results directly prove that the light steering is independent of the emission materials, the wavelength, radiation angle, and the polarization of the emitted light. We anticipate this paradigm may offer new opportunities for high-end optoelectronic designs and applications. |
| |
| Keywords: | Speckle image holography Light manipulation Organic light-emitting diodes Full-color Holography metasurfaces |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
