皺褶石墨烯結構表面和等離子共振誘導的GLN功能化二維材料二硫化鎢量子點可拉伸和無腔體白光雷射

Abstract

本研究提出了對基於glutamine(GLN)-functionalized WS2量子點（QDs）的可拉伸無腔白光雷射的製作、特性分析和性能評估的全面研究。通過Au奈米顆粒（Au NPs）和皺褶結構來增強器件，引入了局部表面等離子共振（LSPR），從而增強了光與物質的相互作用，提高了性能並降低了雷射臨界值。這些器件的可拉伸性通過機械彎曲測試得到驗證，展示了它們在柔性和可穿戴應用中的潛力。此外，雷射結構中的無腔設計簡化了器件的設計和製作過程，使其具有高度的多功能性和可擴展性。GLN功能化的WS2 QDs表現出強烈的光致發光發射，與Au NPs和Graphene的皺摺結構的集成產生協同效應，提高了發射效率並實現了無腔雷射。在不同變形比下對發射光譜進行廣泛的特性分析和分析，為這些器件的可調性、可靠性及基於Graphene皺摺結構的光束縛的重要性提供了有價值的見解。本研究的結果凸顯了基於2D GLN功能化的WS2量子點的局部表面等離子共振和皺褶結構引起的可拉伸無腔白光雷射在柔性和可穿戴光子學領域中的重要潛力。這項工作展示了實現性能和多功能性提升的下一代光電子器件發展的關鍵一步。

This study presents an investigation into the fabrication, characterization, and performance analysis of cavity-free and stretchable white lasers based on 2D glutamine(GLN)-functionalized WS2 quantum dots (QDs) enhanced by the integration of Au nanoparticles (NPs) and wrinkled graphene structure. Incorporating Au NPs introduces localized surface plasmon resonance (LSPR), which enables to enhance of the light-matter interaction, resulting in reduced lasing thresholds. The stretchable nature of these devices is demonstrated through mechanical bending tests, showcasing their potential for seamless integration into flexible and wearable applications. Furthermore, the absence of a cavity in the laser structure simplifies the device design and fabrication process, making them highly versatile and scalable. The GLN-functionalized WS2 QDs exhibit strong photoluminescence emission, and their integration with wrinkled graphene structure and Au NPs creates a synergistic effect that enhances the emission efficiency and enables the realization of cavity-free 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 wrinkled graphene structure. The findings of this study underscore the significant potential of localized surface plasmon resonance and wrinkled graphene structure induced stretchable and cavity-free white lasers based on 2D GLN-functionalized WS2 quantum dots for a wide range of applications in the field of flexible and wearable photonics, which is a critical step toward the development of next-generation optoelectronic devices with enhanced performance and versatility.