来自煤炭衍生碳的固态素量子点
Anusuya Boruah1,2, Sarmistha Bora1, Ashutosh Thakur1,2
1Coal and Energy Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India.
ACS omega
|July 24, 2023
概括
这项研究提出了一种可持续的方法,可以从煤炭衍生的碳量子点 (CQD) 制造固体. 这些新型的CQD显示出出色的蓝色光,并使固态材料中高强度的白光发射成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 化学 化学 化学
背景情况:
- 碳量子点 (CQD) 具有独特的光学和化学特性,导致各种应用.
- 将煤炭衍生CQD的实用性扩展到固态中,对于更广泛的技术整合至关重要.
- 开发CQD的可持续合成方法是一个持续的研究重点.
研究的目的:
- 开发一种可持续的固态的合成方法,使用来自煤炭的碳量子点 (CQD).
- 研究CQD集成到有机 (聚乙醇) 和无机 (二氧化) 矩阵中的特性.
- 探索这些固态CQD材料在光学应用中的潜力,包括白光发射.
主要方法:
- 环保超声波辅助湿氧化用于CQD合成.
- 通过sol-gel方法制造聚乙醇/CQD复合膜和/CQD.
- 对CQD结构,化学性质和光行为进行全面的描述.
主要成果:
- 合成了两种类型的煤炭衍生CQD,表现出蓝色光,量子产量为8.9%和14.9%.
- 发现CQDs是用和硫异构原子自我辅助的.
- 在PVA/CQD和SiO2/CQD矩阵中证实了固态光,后者实现了高强度白光发射.
结论:
- 通过使用PVA和SiO2矩阵,可以从煤炭衍生的CQD中实现固态的可持续合成.
- 煤炭衍生CQD在固体矩阵中保留其光特性,并且可以为特定的光学输出进行工程设计.
- 开发的SiO2 / CQD光体显示出由于其白光发射特性而具有先进光学应用的潜力.
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