Plasmon-Enhanced Ultraviolet Photoluminescence from the Graphene/GaN Nanofilm
Plasmon-Enhanced Ultraviolet Photoluminescence from the Graphene/GaN Nanofilm
复制标题
石墨烯/GaN 纳米膜的等离激元增强紫外光致发光
DOI：
10.1166/jnn.2021.19447
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发表时间：
2021
影响因子：
--
通讯作者：
Saiwen Zhang
中科院分区：
文献类型：
--
作者：
Jitao Li;Qiuxiang Zhu;Jinyang Ding;Guixia Zhang;Jiajia Han;Saiwen Zhang
石墨烯表面等离子体激元(SP)在紫外光(UV)波段的响应及其在石墨烯/半导体短波波长上的功能应用都是一个引人注目的研究领域。为此，设计并制备了一种石墨烯/GaN纳米膜的混合结构。研究了其光致发光性能和耦合动力学。结果表明，石墨烯SPS和GaN激子发射之间的共振耦合是石墨烯/GaN纳米膜结构发光显著增强的原因。的潜在机制。在理论模拟和实验表征的基础上提出了改进后的光致发光性能。研究结果对设计石墨烯/半导体混合结构中基于SP耦合的新型光学和光电子器件具有一定的参考价值。
The response of graphene surface plasmon (SP) in ultraviolet (UV) wavelength region and its functional applications on the short wavelength of graphene/semiconductorare both fascinating research areas. Herein, a hybrid structure of graphene/GaN nanofilm was designed and fabricated to. investigate the photoluminescence (PL) performance and the coupling dynamics. It is demonstrated that the resonant coupling between graphene SPs and GaN exciton emission is responsible for the substantially enhanced PL from the structure of graphene/GaN nanofilm. The underlying mechanism of. the improved PL performance was proposed based on theoretical simulation and experimental characterization. The results are helpful to design new types of optic and photoelectronic devices based on SP coupling in graphene/semiconductor hybrid structures.