基于 GLN 功能化 2D WS2 量子点的皱纹石墨烯结构和局域表面等离子共振诱导可拉伸白色随机激光器,Advanced Optical Materials

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基于 GLN 功能化 2D WS2 量子点的皱纹石墨烯结构和局域表面等离子共振诱导可拉伸白色随机激光器
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2023-12-07 , DOI: 10.1002/adom.202302055
Yu-Hsuan Chien, Guan-Zhang Lu, Sin-En Li, Yu-Ting Chen, Yu-Chuan Tsao, Yu-Chieh Chao, Ji-Lin Shen, Yang-Fang Chen

本研究对基于 2D 谷氨酰胺 (GLN) 功能化 WS ₂量子点 (QD) 的可拉伸白色随机激光器的制造、表征和性能分析进行了研究，该激光器通过金纳米颗粒 (NP) 和皱纹石墨烯结构的集成增强。皱纹石墨烯具有通过电子碰撞实现瞬时粒子数反转的潜力。掺入金纳米粒子会引入局域表面等离子体共振 (LSPR)，从而增强光与物质的相互作用，从而降低激光阈值。 GLN功能化的WS ₂ QD表现出强烈的光致发光发射，它们与皱纹石墨烯结构和Au NPs的集成产生了协同效应，提高了发射效率并能够实现白色随机激光。对不同变形比下的发射光谱进行广泛的表征和分析，为了解这些器件的可调谐性和可靠性以及皱纹石墨烯结构造成的光捕获的重要性提供了宝贵的见解。这项研究的结果强调了基于 2D GLN 功能化 WS ₂ QD 的 LSPR 和皱纹石墨烯结构诱导可拉伸和白色随机激光器的巨大潜力。这些激光器可能在柔性和可穿戴光子学领域具有广阔的应用前景，这是开发具有改进性能的下一代光电器件的关键一步。

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Wrinkled Graphene Structure and Localized Surface Plasmon Resonance Induced Stretchable White Random Lasers Based on GLN-functionalized 2D WS2 Quantum Dots

This study presents investigations into the fabrication, characterization, and performance analysis of stretchable white random lasers based on 2D glutamine(GLN)-functionalized WS₂ quantum dots (QDs) enhanced by the integration of Au nanoparticles (NPs) and a wrinkled graphene structure. Wrinkled graphene holds the potential for achieving transient population inversion through electron collisions. Incorporating Au NPs introduces localized surface plasmon resonance (LSPR), which enhances the light-matter interaction, resulting in reduced lasing thresholds. The GLN-functionalized WS₂ QDs exhibit strong photoluminescence emission, and their integration with a wrinkled graphene structure and Au NPs creates a synergistic effect that enhances the emission efficiency and enables the realization of white random lasing. The extensive characterization and analysis of the emission spectra under different deformation ratios provide valuable insights into the tunability and reliability of these devices, as well as the importance of light trapping due to the wrinkled graphene structure. The findings of this study underscore the significant potential of LSPR and wrinkled graphene structure induced stretchable and white random lasers based on 2D GLN-functionalized WS₂ QDs. These lasers may have a promising application in the field of flexible and wearable photonics, which is a critical step towards the development of next-generation optoelectronic devices with improved performance.

更新日期：2023-12-07

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