低转换发光纳米复合材料,基于添加碳量子点的生物塑料,用于光学显示器,LED和UVC管中的应用
Varun Dutt Sharma1, Vishal Kansay1, G Chandan2
1Department of Physics, Maharishi Markandeshwar (Deemed to be University), Mullana Ambala (133207), Haryana, India.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
|February 25, 2024
概括
研究人员从植物来源开发了环保的化碳量子点 (N-CQDs). 这些嵌入生物塑料的N-CQD显示出在LED和UVC管中降低转换的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 生物技术是生物技术.
背景情况:
- 碳量子点 (CQD) 由于其稳定的光和可调节的发射,越来越多地被用作发光下方转换材料.
- 开发可持续和经济有效的CQD合成方法对于它们的广泛应用至关重要.
研究的目的:
- 从一个廉价和可持续的植物前体Cissus quadrangularis合成光化CQD (N-CQD).
- 研究这些N-CQD在嵌入到可生物降解生物塑料基质中时作为下转换材料的潜力.
主要方法:
- 合成了来自Cissus quadrangularis的N-CQD,描述了它们的形态,结构和物理化学特性.
- 通过分散N-CQDs在基于小麦粉的生物塑料中制备纳米复合材料.
- 评估了LED和UVC管的纳米复合材料的下转换性能,检查了CQD度和pH效应.
主要成果:
- 合成了近乎球形的N-CQD (平均直径5.1纳米),在紫外线 (365纳米) 下呈现黄色绿色光.
- 实现了高达5%的量子产量,对于N-CQDs来说,具有出色的光稳定性和水溶性.
- 通过使用N-CQD/生物塑料纳米复合材料,成功地证明了LED和UVC管的固态光的向下转换.
结论:
- 从Cissus quadrangularis中制造光N-CQD的廉价和环境可持续的方法已经建立.
- N-CQD/生物塑料纳米复合材料显示出对固态照明应用的承诺,提供可调节的下转换特性.
- 该研究强调了植物衍生CQD和可生物降解矩阵对先进光学材料的潜力.
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