Improving color rendering index of top-emitting white OLEDs with single emitter by using microcavity effects
| Autor: | Jun Li, Zixing Wang, Yunping Zhao, Wenqing Zhu, Lu Huang, Bin Wei, Minqiang Wan |
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| Rok vydání: | 2022 |
| Předmět: |
Materials science
business.industry General Chemistry Condensed Matter Physics Excimer Electronic Optical and Magnetic Materials law.invention Biomaterials Color rendering index Wavelength law Optical cavity Materials Chemistry OLED Optoelectronics Electrical and Electronic Engineering Chromaticity business Diode Common emitter |
| Zdroj: | Organic Electronics. 100:106381 |
| ISSN: | 1566-1199 |
| DOI: | 10.1016/j.orgel.2021.106381 |
| Popis: | We have developed a high color rendering index (CRI) top-emitting white organic light-emitting diode (TWOLEDs) using single emitter by enhancing the yellow-green part between the monomer and excimer emission of platinum [1,3-difluoro-4,6-di(2-pyridyl)benzene] chloride via microcavity effect. Resonant wavelengths can well-tuned by adjusting the thickness of the hole transport layer to modify the optical cavity length. The TWOLEDs exhibits four-peak spectra at 480, 512, 556, and 600 nm with maximum color rendering index of 83 and full half-maximum width of 200 nm. Meanwhile, the chromaticity of TWOLEDs is quite stable, showing slight Commission Internationale deL'Eclairage coordinate shifts of (±0.005, ±0.004) over the driving voltage range of 4–10 V. |
| Databáze: | OpenAIRE |
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