Novel Donor-Acceptor Based 4-Nitrophenol Luminophores as a Yellow-Orange Fluorescent Material for Optoelectronic Applications.

IF 2.6 4区 化学 Q2 BIOCHEMICAL RESEARCH METHODS Journal of Fluorescence Pub Date : 2024-09-25 DOI:10.1007/s10895-024-03938-9
K G Mane, S R Pujari, V B Shahabade, P B Nagore
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Abstract

A new category of 4-nitrophenol (4-NP) luminophores, infused with varying amounts of Pyrene (Py), was synthesized using the standard solid-state reaction method to investigate novel luminophores that emit at longer wavelengths. Their optical and electrochemical properties were analyzed using fluorimetry and cyclic voltammetry techniques. The fluorescence spectrum of Py-doped 4-NP displayed a broad fluorescence band with a peak at 599 nm for a Py concentration of 1 × 10- 3 mol, indicating exciplex formation between 4-NP and Py in the excited state. The electrochemical data revealed that the energy levels of the Highest Occupied Molecular Orbital (HOMO) and Lowest Unoccupied Molecular Orbital (LUMO) for the synthesized luminophores ranged from - 5.72 to -5.73 eV and - 3.01 to -3.08 eV, respectively. Thermal stability was evaluated through TGA analysis. The XRD confirmed the synthesis of a homogeneous material. The SEM images showed crystal sizes of approximately 115 nm. This thorough investigation indicates the potential of these newly synthesized yellow-orange fluorescent luminophores for optoelectronic applications.

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基于供体-受体的新型 4-硝基苯酚发光体作为光电应用领域的黄橙色荧光材料。
采用标准固态反应方法合成了一种注入了不同数量芘(Py)的新型 4-硝基苯酚(4-NP)发光体,以研究能发射更长波长的新型发光体。利用荧光测定法和循环伏安法分析了它们的光学和电化学特性。在 Py 浓度为 1 × 10- 3 mol 时,掺杂 Py 的 4-NP 的荧光光谱显示出一条宽荧光带,在 599 nm 处有一个峰值,表明 4-NP 与 Py 在激发态形成了复合物。电化学数据显示,合成的发光体的最高占位分子轨道(HOMO)和最低未占位分子轨道(LUMO)的能级分别为 - 5.72 至 - 5.73 eV 和 - 3.01 至 - 3.08 eV。通过 TGA 分析评估了热稳定性。XRD 证实合成了一种均质材料。扫描电镜图像显示晶体大小约为 115 nm。这项深入研究表明,这些新合成的橘黄色荧光发光体具有光电应用的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Fluorescence
Journal of Fluorescence 化学-分析化学
CiteScore
4.60
自引率
7.40%
发文量
203
审稿时长
5.4 months
期刊介绍: Journal of Fluorescence is an international forum for the publication of peer-reviewed original articles that advance the practice of this established spectroscopic technique. Topics covered include advances in theory/and or data analysis, studies of the photophysics of aromatic molecules, solvent, and environmental effects, development of stationary or time-resolved measurements, advances in fluorescence microscopy, imaging, photobleaching/recovery measurements, and/or phosphorescence for studies of cell biology, chemical biology and the advanced uses of fluorescence in flow cytometry/analysis, immunology, high throughput screening/drug discovery, DNA sequencing/arrays, genomics and proteomics. Typical applications might include studies of macromolecular dynamics and conformation, intracellular chemistry, and gene expression. The journal also publishes papers that describe the synthesis and characterization of new fluorophores, particularly those displaying unique sensitivities and/or optical properties. In addition to original articles, the Journal also publishes reviews, rapid communications, short communications, letters to the editor, topical news articles, and technical and design notes.
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