Synthesis of multi-peak emitting carbon dots using phenylenediamine isomers

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2024-11-10 DOI:10.1016/j.matlet.2024.137693

Baohui Li , Tao Song , Fang Cheng , Lingling Ren , Zhili Jia , Lingyu Song , Chen Pu

引用次数: 0

Abstract

Revealing the relationship between structure and optical properties of multi-peak emissive carbon dots (CDs) is important. Three types of multi-peak emission CDs were synthesized by one-step hydrothermal method with phenylenediamine (PD) isomers (o/m/p) and maleic anhydride serving as precursors. During the synthesis process, three PDs exhibited different microstructural and chemical states, resulting in various fluorescence emission centers. The multi-peak emission behavior of o-CDs and m-CDs is composed of molecular fluorophores and carbon core states, while that of p-CDs consists of surface states and carbon core states. These different fluorescence centers lead to diverse fluorescence behaviors of the CDs in different solvents and environments. This work inspires the clarification of the relationship between the structural and optical properties of multi-peak emissive CDs.

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利用苯二胺异构体合成多峰发光碳点

揭示多峰发射碳点（CD）的结构与光学特性之间的关系非常重要。本研究以苯二胺异构体（o/m/p）和马来酸酐为前驱体，采用一步水热法合成了三种多峰发射碳点。在合成过程中，三种苯二胺呈现出不同的微观结构和化学状态，从而产生了不同的荧光发射中心。o-CDs 和 m-CDs 的多峰发射行为由分子荧光团和碳核状态组成，而 p-CDs 的多峰发射行为则由表面状态和碳核状态组成。这些不同的荧光中心导致了 CD 在不同溶剂和环境中的不同荧光行为。这项工作有助于阐明多峰发射型光盘的结构与光学特性之间的关系。

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

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive