【作者】 张鹏；

【导师】 付广伟；

【作者基本信息】 燕山大学 ， 光学工程， 2019， 硕士

【摘要】 石墨烯作为一种独特的零带隙能带结构材料,具有许多优异的电学、光学特性,被广泛应用于光电器件的研究之中。然而,目前普遍需要通过转移的方法将石墨烯从衬底转移至目标衬底,这大大降低了石墨烯的应用范围。因此,本文针对如何在无催化剂条件下在光子晶体光纤空气孔内直接进行石墨烯的生长展开探究。论文的主要内容如下。首先,对基于石墨烯的光纤器件,如光纤调制器、光纤传感器以及光纤激光器等研究现状进行了综述,并且阐明了在光子晶体光纤空气孔内直接进行石墨烯生长的优越性;其次,研究了在光子晶体光纤孔内生长石墨烯的制备方法和基础理论,研究了在不同衬底表面通过化学气相沉积法进行石墨烯生长的不同原理及生长过程,证明了在光子晶体光纤这一绝缘衬底上进行石墨烯生长的可行性;再次,研究了在五层空气孔光子晶体光纤空气孔内通过化学气相沉积法进行石墨烯生长的实验参数以及实验步骤,通过实验得出了单层、双层以及多层石墨烯薄膜生长的具体实验参数;最后,研究了前驱气体的比例、生长时间、生长温度以及降温方式等不同实验参数对五层空气孔光子晶体光纤孔内生长得到的石墨烯层数以及缺陷的影响,并且根据实验结果进行了相应的理论分析,并最终建立了光子晶体光纤孔内石墨烯生长的参数控制模型。更多还原

【Abstract】 Graphene with unique zero-gap band structure,has many excellent electrical and optical properties and has been widely used in the research of optoelectronic devices in recent years.However,it is generally necessary to transfer graphene from the substrate to the target substrate,which greatly reduces the application fileds of graphene greatly.Therefore,this paper explores how to directly grow graphene in the air holes of photonic crystal fibers without catalyst.The article will start from the following aspects:Firstly,the research status of graphene-based fiber optic devices,such as fiber modulators,fiber sensors and fiber lasers,is reviewed,and clarified the superiority of direct graphene growth in the air hole of photonic crystal fiber.Secondly,study the preparation method and basic theory of graphene growth in photonic crystal fiber pores,the different principles and growth processes of graphene growth by chemical vapor deposition on different substrate surfaces were also studied,which prove the feasibility of graphene growth on an insulating substrate of photonic crystal fiber.Thirdly,the experimental parameters and experimental steps of graphene growth by chemical vapor deposition in the air hole of a five-layer air hole photonic crystal fiber were studied,the experimental parameters of single layer,double layer and multilayer graphene film growth were obtained through experiments.Finally,the effects of different experimental parameters such as the proportion of precursor gas,growth time,growth temperature and cooling mode on the number of graphene layers and defects in the pores of five-layer air hole photonic crystal fiber were studied,and the corresponding theory was carried out according to the experimental results,the parameter control model of graphene growth in the photonic crystal fiber pores was finally analyzed.更多还原