نوع مقاله : پژوهشی
نویسنده
دانشکده فنی و مهندسی، دانشگاه آیت الله بروجردی
چکیده
تاکنون بیشتر پژوهش ها و بررسی ها پیرامون جذب و انتشار امواج پلاسمون سطحی بر گرافین و الگوهای مختلف ایجاد شده بر آن، بر اساس لایه های نشانده شده بر زیرلایه های همسانگرد بوده است. در این مقاله، ابتدا ساختار گرافین بر زیرلایه نیترید بور هگزاگونال، به عنوان یک زیرلایه ناهمسانگرد، ضریب گذردهی الکتریکی مؤثر و ضریب بازتاب آن، و نیز امکان کنترل آنها از طریق تغییر در تراز پتانسیل شیمیایی گرافین مطالعه میشود. در ادامه، ویژگی های انتشار امواج پلاسمون سطحی، بر نانونوارهای گرافین نشانده شده بر این زیرلایه ناهمسانگرد تک محوره بهصورت تحلیلی و شبیه سازی بررسی میشود. به کارگیری چنین زیرلایه هایی میتواند تلفات انتشار را در مقایسه با دیگر زیرلایه ها به میزان قابل توجهی کاهش دهد. نتایج این بررسی میتواند در تحلیل جاذب ها و آرایه هایی متناوب از نانونوار گرافین بر زیرلایه های نیترید بور هگزاگونال به کار گرفته شود.
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