【摘要】：有機太陽能電池具有重量輕、成本低、耗能低、易于制造、延展性好、易于與其他設備兼容等優(yōu)點,已成為新型能源領域的研究熱點。然而,有機太陽能電池低的光電轉化效率一直是有機太陽能電池研究的瓶頸,因此,提高有機太陽能電池的光電轉化效率仍是當今研究的熱點。本論文就是在有機太陽能電池中加入金屬納米結構,利用表面等離子體共振效應提高光吸收,從而提高光電轉化效率。同時,本論文還研究了斜入射條件下,有機太陽能電池的光電特性。之后,在此基礎上研究了小周期有機太陽能電池的光電特性。本文主要運用頻域有限差分法(FDFD)對太陽能電池中的方程進行求解,從而對其光電特性進行研究和分析。本文的主要研究工作如下:1.簡要闡述有機太陽能電池的基本理論,包括有機太陽能電池的發(fā)展歷程、基本結構、工作原理以及衡量工作性能的特性參數(shù)。在傳統(tǒng)有機太陽能電池的基礎上,引入了表面等離子體納米結構,介紹了表面等離子體共振效應對提高有機太陽能電池光電轉化效率的原理。2.介紹了頻域有限差分方法的基本原理,并與其他算法進行對比。在處理頻域問題、斜入射問題以及周期結構上,頻域有限差分方法存在著較大的優(yōu)勢。將FDFD方法引入有機太陽能電池的研究中,用FDFD方法對有機太陽能電池中的麥克斯韋方程組、泊松方程、漂移-擴散方程進行處理。3.在傳統(tǒng)有機太陽能電池的基礎上,引入了 Ag納米光柵結構,利用表面等離子體效應來增強有機太陽能電池的光吸收,從而提高光電轉化效率。同時,還研究了在斜入射狀況下,有機太陽能電池的光電特性。4.縮小含Ag光柵的有機太陽能電池的周期,研究小周期有機太陽能電池的光吸收,光電轉化效率;改變光柵的間隔寬度,研究光柵間隔寬度對有機太陽能電池光電特性的影響。
[Abstract]:Organic solar cells have many advantages, such as light weight, low cost, low energy consumption, easy manufacture, good ductility and compatibility with other equipments. However, the low photoconversion efficiency of organic solar cells has been the bottleneck of the research of organic solar cells. Therefore, improving the photoelectric conversion efficiency of organic solar cells is still a hot topic. In this paper, metal nanostructures are added to the organic solar cells to improve the optical absorption by using the surface plasmon resonance (SPR) effect, thus improving the photoelectric conversion efficiency. At the same time, the photoelectric characteristics of organic solar cells under oblique incidence are studied. Then, the photoelectric characteristics of small period organic solar cells are studied. In this paper, the finite difference method in frequency domain (FDFD) is used to solve the equations of solar cells, and the photoelectric characteristics of solar cells are studied and analyzed. The main work of this paper is as follows: 1. This paper briefly describes the basic theory of organic solar cells, including the development of organic solar cells, the basic structure, working principle and the characteristic parameters to measure the performance of the organic solar cells. Based on the traditional organic solar cells, the surface plasma nanostructure is introduced, and the principle of surface plasmon resonance effect on improving the photoconversion efficiency of organic solar cells is introduced. 2. The basic principle of frequency domain finite difference method is introduced and compared with other algorithms. In frequency domain problem, oblique incidence problem and periodic structure, the finite difference method in frequency domain has great advantages. The FDFD method is introduced into the study of organic solar cells, and the Maxwell equations, Poisson equations and drift-diffusion equations in organic solar cells are treated by FDFD method. Based on the traditional organic solar cells, the Ag nano-grating structure is introduced, and the photoabsorption of the organic solar cells is enhanced by the surface plasma effect, thus improving the photoelectric conversion efficiency. At the same time, the photoelectric characteristics of organic solar cells under oblique incidence are studied. 4. 4. Reduce the period of organic solar cells with Ag grating, study the light absorption and photoelectric conversion efficiency of small period organic solar cells, and study the influence of grating spacing width on the photovoltaic characteristics of organic solar cells by changing the grating spacing width.
【學位授予單位】：安徽大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TM914.4

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本文編號：2295056