Issue 62, 2021, Issue in Progress

The relationship between basic group resonance and quantum yield of high efficiency red light fluorescent solutions

Abstract

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[triple bond, length as m-dash]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[triple bond, length as m-dash]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%.

Graphical abstract: The relationship between basic group resonance and quantum yield of high efficiency red light fluorescent solutions

Article information

Article type
Paper
Submitted
20 Aug 2021
Accepted
01 Dec 2021
First published
08 Dec 2021
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2021,11, 39142-39146

The relationship between basic group resonance and quantum yield of high efficiency red light fluorescent solutions

Y. Lin, H. Tsai, J. Huang and C. Lin, RSC Adv., 2021, 11, 39142 DOI: 10.1039/D1RA06326J

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