R. Blessy Pricilla, Pavel Urbanek, Jakub Sevcik, David Skoda, Jan Antos, Lukas Munster, Eva Domincova-Bergerova, Ivo Kuritka
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引用次数: 0
摘要
室温磷光碳点(RTP CD)因其显著的光学特性而成为新近研究的纳米材料之一。它们被广泛应用于多种光电和安全领域。除了合成外,其具有挑战性的特性之一是在室温下的使用寿命。本文介绍了一种直接、快速的加热方法,用于合成自基质 1,10-菲罗啉和硼基 RTP CD。1,10菲罗啉用作含碳芳香杂原子前驱体,硼酸用作钝化剂以稳定三重激子并防止非辐射失活。为了研究自基质 RTP CD 的特性,我们采用了各种表征技术,如 TEM、XRD、FTIR、UV-vis、PL 和元素分析(ICP 和 CHNS)。在 302 纳米波长的激发下,RTP CD 发出了极好的蓝绿色光。与现有文献相比,这项工作的新颖之处在于其在 302 纳米波长下的肉眼磷光特性高达≈22 秒,平均寿命≈2.4 秒,使其成为超长的自基质 RTP CD 材料。由于其卓越的品质,自矩阵 RTP CD 已被广泛应用于各种领域,包括信息加密解密、LED 荧光粉、防伪和水敏感性分析等。
Exploring the Ultralong Lifetime of Self-matrix 1,10 Phenanthroline and Boron-Based Room Temperature Phosphorescence Carbon Dots for Multiple Applications
Room temperature phosphorescence carbon dots (RTP CDs) are one of the newly investigated nanomaterials because of their remarkable optical characteristics. They are widely utilized in many versatile optoelectronic and security applications. Apart from synthesis, one of its challenging attributes is its lifetime at room temperature. Here, a straightforward and quick heating approach is presented for synthesizing self-matrix 1,10 phenanthroline and boron-based RTP CDs. 1,10 phenanthroline is utilized as an aromatic and hetero atom containing carbon precursor and boric acid is used as a passivating to stabilize the triplet excitons and prevent nonradiative deactivation. Various characterization techniques like TEM, XRD, FTIR, UV–vis, PL, and elemental analysis (ICP and CHNS) have been used to study the properties of self-matrix RTP CDs. The RTP CDs exhibited excellent blue-green emission when excited at 302 nm. Compared to the available literature, the novelty of this work is observed from its high naked eye phosphorescence characteristic of ≈22 s with an average lifetime of ≈ 2.4 s at 302 nm, making them ultralong self-matrix RTP CD material. Due to their exceptional qualities, the self-matrix RTP CDs have been widely employed for various applications, including information encryption decryption, phosphor for LEDs, anticounterfeiting, and water sensitivity analysis.
期刊介绍:
Advanced Optical Materials, part of the esteemed Advanced portfolio, is a unique materials science journal concentrating on all facets of light-matter interactions. For over a decade, it has been the preferred optical materials journal for significant discoveries in photonics, plasmonics, metamaterials, and more. The Advanced portfolio from Wiley is a collection of globally respected, high-impact journals that disseminate the best science from established and emerging researchers, aiding them in fulfilling their mission and amplifying the reach of their scientific discoveries.