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Influence of blend composition and annealing temperature on optical properties of organic photovoltaic cell based on P3HT:PCBM interpenetrating blend

机译:基于P3HT:PCBM互穿共混物的共混物组成和退火温度对有机光伏电池光学性能的影响

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In this paper, the influence of blend composition and annealing temperature on optical properties of organic photovoltaic (OPV) cells based on P3HT:PCBM interpenetrating blend is presented. Optical optimization of the OPV cell is first performed to determine the optimal geometry of the stack. The studied device structure is: glass/ITO/PEDOT:PSS/P3HT:PCBM/Ca/Al. Simulation results give as optimized thicknesses: d(PEDOT:PSS) = 27 nm and d(Active layer) = 91 nm. The optimized OVP cell gives a short-circuit current J(SC) = 12.48 mA/cm(2). The influence of technological parameters on the performance of the optimized P3HT:PCBM blend OPV cell is then clearly defined. Simulation results show that among the mass ratio of P3HT:PCBM blend active layers studied (1:1, 1:2, 2:1, 2:3 and 3:2), the active layer with the higher blend mass ratio (2:1) gives the best optical properties. Also, increasing the annealing temperature of the active layer leads to increase absorption. The blend active layer annealed at 140 degrees C presents the best optical properties of the OPV cell.
机译:本文提出了共混物组成和退火温度对基于P3HT:PCBM互穿共混物的有机光伏电池光学性能的影响。首先执行OPV电池的光学优化,以确定电池组的最佳几何形状。研究的器件结构为:玻璃/ ITO / PEDOT:PSS / P3HT:PCBM / Ca / Al。仿真结果给出了优化的厚度:d(PEDOT:PSS)= 27 nm,d(有源层)= 91 nm。优化的OVP电池可提供短路电流J(SC)= 12.48 mA / cm(2)。然后明确定义工艺参数对优化的P3HT:PCBM共混OPV电池性能的影响。仿真结果表明,在研究的P3HT:PCBM共混活性层的质量比(1:1、1:2、2:1、2:3和3:2)中,共混质量比较高的活性层(2: 1)提供最佳的光学性能。而且,增加活性层的退火温度导致吸收增加。在140摄氏度下退火的共混物活性层具有OPV电池最佳的光学性能。

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