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Optical Calculation and Simulation of Organic Photovoltaic Cells

Author: ZuoHaiYue
Tutor: LiangChunJun
School: Beijing Jiaotong University
Course: Optical Engineering
Keywords: Organic photovoltaic devices Optical simulation Optical absorption Active layer
CLC: TM914.4
Type: Master's thesis
Year: 2011
Downloads: 73
Quote: 0
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Abstract


An organic photovoltaic cell production process is simple, low cost, manufacture of a large area, increasing attention has been concern, low but organic photoelectric conversion efficiency of the photovoltaic cell, and affect the main reason for its photoelectric conversion efficiency is divided into the light absorption in the active layer, Exciton transfer, separation, and collection of the free charge at the electrodes. An organic photovoltaic device, the light absorption of the active layer of device performance has an important effect, improve the light absorption of the active layer, it is possible to improve the utilization of incident light to improve the photoelectric conversion efficiency of the photovoltaic device. However, current research on the light absorption in the active layer in organic photovoltaic devices few reasons for affecting the light absorption of the active layer is not clear. This paper is the use of theoretical and computer-aided tools to study the light absorption of the active layer in organic photovoltaic devices are divided into the following sections: a research in photovoltaic devices, organic photovoltaic cells is a multi-layer film structure, optical properties When the application of thin film optical computing theory. By studying the theory of optical film Explore theory to calculate the optical characteristics of the photovoltaic device using the thin film optical methods, and analysis of the absorption factors affect the organic active layer of the photovoltaic device. Second, because the optical characteristics in organic photovoltaic devices is particularly complex, the need to use computer-aided tools to calculate the optical characteristics of the device. The method found Essential Macleod software on the optical characteristics of a photovoltaic device, especially the analysis and calculation of the absorption rate in the active layer of the device. Third, this paper Essential Macleod software ITO / PEDOT: PSS/P3HT: PCBM / Al structure of the photovoltaic device, a detailed simulation analysis, analysis of device structure changes when the impact on the absorption rate of P3HT: PCBM active layer obtained of P3HT: PCBM in the active layer, the device structure in the absorption rate best; also studied to increase the TiO2 layer device of P3HT: PCBM active layer changes in absorption, optimize the design of the device structure so as to increase the TiO2 layer of P3HT: PCBM active layer absorbs increase the TiO2 layer devices. Also studied ITO/P3HT: PCBM / G-PEDOT structure of an organic photovoltaic device, through software simulation and experimental combination again verify the increase in the film can change the absorption in the active layer of the device allows the device to increase of TiOx and a ZnO film the active layer, the absorption rate is improved, and the short-circuit current of the device has been improved, and to improve the device performance.

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CLC: > Industrial Technology > Electrotechnical > Independent power supply technology (direct power) > Photocell > Solar cells
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