Biomaterial-based random lasers achieved from peanut kernel doped with birch leaf–derived carbon dots

IF 6.6 2区 物理与天体物理 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Zhihao Huang, Henry Opoku, Jiong Liu, Zefeng Wu, Junkai Ren, Wenfei Zhang, Jia Wang
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Abstract

The intrinsically disordered periodic architecture inherent in natural biomaterials exhibits significant potential for serving as resonant cavities, enabling the development of eco-friendly, biocompatible, and cost-effective microlaser systems. In this study, we demonstrate a biomaterial-based random laser utilizing birch leaf–derived carbon dots (CDs) as the gain medium. CDs ethanol solution was introduced into the peanut via microinjection, successfully fabricating CDs-doped peanut samples that preserved the fluorescence characteristics of the CDs in solution. Random lasing was observed on multiple surfaces of the CDs-doped peanut under pulsed laser excitation, with varying thresholds across different regions. This demonstrates that the natural disordered microstructure of biological materials can facilitate random lasing. Analysis of surface morphology and scattering patterns indicates that the lasing mechanism arises from multiple light scattering within the disordered structure of the peanut surface, forming coherent feedback loops. Furthermore, the intrinsic biocompatibility of bio-derived CDs effectively addresses the persistent toxicity concerns associated with synthetic laser materials. Such biomaterial-based random lasers could enable eco-friendly and cost-effective photonic applications.
花生仁掺杂桦叶衍生碳点实现的生物材料随机激光器
天然生物材料固有的内在无序周期性结构显示出作为谐振腔的巨大潜力,使生态友好,生物相容性和成本效益的微激光系统的发展成为可能。在这项研究中,我们展示了一种基于生物材料的随机激光器,利用桦叶衍生的碳点(cd)作为增益介质。通过显微注射将CDs乙醇溶液引入花生中,成功制备了CDs掺杂花生样品,并保留了溶液中CDs的荧光特性。在脉冲激光激发下,花生的多个表面出现随机激光,不同区域的阈值不同。这表明生物材料的自然无序微观结构可以促进随机激光。对花生表面形貌和散射模式的分析表明,激光的产生机制是由花生表面无序结构内的多次光散射引起的,形成了相干反馈回路。此外,生物衍生cd的内在生物相容性有效地解决了与合成激光材料相关的持续毒性问题。这种基于生物材料的随机激光器可以实现生态友好和经济有效的光子应用。
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
Nanophotonics
Nanophotonics NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY
CiteScore
13.50
自引率
6.70%
发文量
358
审稿时长
7 weeks
期刊介绍: Nanophotonics, published in collaboration with Sciencewise, is a prestigious journal that showcases recent international research results, notable advancements in the field, and innovative applications. It is regarded as one of the leading publications in the realm of nanophotonics and encompasses a range of article types including research articles, selectively invited reviews, letters, and perspectives. The journal specifically delves into the study of photon interaction with nano-structures, such as carbon nano-tubes, nano metal particles, nano crystals, semiconductor nano dots, photonic crystals, tissue, and DNA. It offers comprehensive coverage of the most up-to-date discoveries, making it an essential resource for physicists, engineers, and material scientists.
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