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Ảnh hưởng của trường điện bên trong đối với đặc tính quang phổ của diốt phát quang siêu phát sáng trên nền GaN màu xanh
Iranian Journal of Science and Technology, Transactions A: Science - Tập 44 - Trang 1259-1268 - 2020
Tóm tắt
Các tác động của trường điện bên trong lên các đặc tính quang phổ của diốt phát quang siêu phát sáng InxGa1−xN/GaN được nghiên cứu lý thuyết. Các phương trình Schrödinger và Poisson cùng với các phương trình tốc độ và lan truyền quang học được giải trong sự có mặt của trường điện bên trong. Bằng cách tăng tỷ lệ mol indium trong giếng lượng tử, trường điện bên trong tăng lên theo dạng tuyến tính. Dòng bơm ảnh hưởng đến cường độ, băng thông và bước sóng của quang phổ. Kết quả cho thấy rằng trường điện bên trong dẫn đến sự dịch chuyển của bức xạ quang phổ sang vùng đỏ. Ngoài ra, trong sự có mặt của trường điện bên trong, cường độ cực đại của quang phổ tăng lên, trong khi đó độ lợi quang giảm xuống.
Từ khóa
#trường điện bên trong #diốt phát quang siêu phát sáng #đặc tính quang phổ #InxGa1−xN/GaN #cường độ quang phổ #bước sóngTài liệu tham khảo
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