https://scholars.lib.ntu.edu.tw/handle/123456789/607031
標題: | The relationship between basic group resonance and quantum yield of high efficiency red light fluorescent solutions | 作者: | Lin Y.-S Tsai H.-Y Huang J.-K |CHING-FUH LIN |
關鍵字: | Fourier transform infrared spectroscopy;Heavy metals;Quantum yield;Rare earth elements;Rare earths;Resonance;Basic groups;Element-free;Environmental hazards;Film-thickness;Fluorescent light;Group resonance;Heavy metal elements;Higher efficiency;Red light;Solution methods;Fluorescence | 公開日期: | 2021 | 卷: | 11 | 期: | 62 | 起(迄)頁: | 39142-39146 | 來源出版物: | RSC Advances | 摘要: | Compared with rare earth elements and heavy metal elements, rare-earth-element-free fluorescent films can greatly reduce environmental hazards. In this study, we use a solution method to produce the fluorescent films. The film thickness is 10 μm, which can maintain fluorescent light intensity in an environment with an average humidity of 55.1 (RH%) after encapsulation. We also find that the type of solvent affects the resonance position of the C-N functional group in DCJTB at a wavenumber of 2196 (cm?1), measured with Fourier transform infrared spectroscopy. The functional group is affected by the polar effect with its displacement decreasing with the quantum yield. Finally, we successfully made a fluorescent solution with a resonance displacement of only 12.8 (cm?1) for the C-N functional group with the quantum yield being as high as 81.3% and a fluorescent film with a quantum yield as high as 84.8%. ? The Royal Society of Chemistry 2021. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121506406&doi=10.1039%2fd1ra06326j&partnerID=40&md5=16eb268c5bb3a312430c2047616f4a05 https://scholars.lib.ntu.edu.tw/handle/123456789/607031 |
ISSN: | 20462069 | DOI: | 10.1039/d1ra06326j |
顯示於: | 電機工程學系 |
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