Photovoltaic performance of solution-processed ternary solar cells based on PTB7: PCBM and squaraine dye

B. Anitha, A. Alexander, M. Namboothiry
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引用次数: 1

Abstract

The performance of poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl] [3-fluoro-2-[(2-ethylhexyl)carbonyl] thieno[3,4-b]thiophenediyl]]: [6,6]-phenyl-C70-butyric-acid-methyl-ester) (PTB7: PC70BM) based inverted bulk heterojunction organic solar cell by introducing squaraine (SQ) dye as the third component is investigated. The photovoltaic devices with an architecture ITO/ ZnO/ active layer/ MoO3 /Ag in which active layers of pristine PTB7: PCBM, and PTB7: PCBM: SQ with different concentrations of SQ are fabricated, and the J-V characteristics are measured under an illumination intensity of 100 mWcm−2. The effect of the introduction of SQ on the photovoltaic parameters of PTB7: PCBM solar cells are analyzed in detail. UV-Vis-NIR absorption spectra of the binary and ternary blends are recorded to study the variations in the absorption with different loadings of SQ in the ternary blends. The morphology of the blend films is analyzed by atomic force microscopy. To study the influence of device area on the cell parameters, solar cells of different active areas viz. 0.09, 0.25, 0.49, and 1 cm2 are made and the variation of cell parameters like short circuit current density, open circuit voltage and fill factor with device area is also studied.The performance of poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl] [3-fluoro-2-[(2-ethylhexyl)carbonyl] thieno[3,4-b]thiophenediyl]]: [6,6]-phenyl-C70-butyric-acid-methyl-ester) (PTB7: PC70BM) based inverted bulk heterojunction organic solar cell by introducing squaraine (SQ) dye as the third component is investigated. The photovoltaic devices with an architecture ITO/ ZnO/ active layer/ MoO3 /Ag in which active layers of pristine PTB7: PCBM, and PTB7: PCBM: SQ with different concentrations of SQ are fabricated, and the J-V characteristics are measured under an illumination intensity of 100 mWcm−2. The effect of the introduction of SQ on the photovoltaic parameters of PTB7: PCBM solar cells are analyzed in detail. UV-Vis-NIR absorption spectra of the binary and ternary blends are recorded to study the variations in the absorption with different loadings of SQ in the ternary blends. The morphology of the blend films is analyzed by atomic force microscopy. To study the influence of ...
基于pptb7: PCBM和方碱染料的溶液法制备三元太阳能电池的光伏性能
通过引入方碱(SQ)染料作为第三组分,研究了聚[[4,8-二[(2-乙基己基)氧]苯并[1,2-b:4,5-b ']二噻吩-2,6-二基][3-氟-2-[(2-乙基己基)羰基]噻吩[3,4-b]噻吩二基]]:[6,6]-苯基- c70 -丁酸甲酯)(PTB7: PC70BM)基倒置体异质结有机太阳能电池的性能。制备了ITO/ ZnO/有源层/ MoO3 /Ag结构的光电器件,其中原初PTB7: PCBM有源层和不同SQ浓度的PTB7: PCBM: SQ有源层,并在100 mWcm−2的光照强度下测量了其J-V特性。详细分析了SQ的引入对PTB7: PCBM太阳能电池光伏参数的影响。记录了二元和三元共混物的紫外-可见-近红外吸收光谱,研究了三元共混物中SQ的不同添加量对其吸收的影响。用原子力显微镜分析了共混膜的形貌。为了研究器件面积对电池参数的影响,制作了0.09、0.25、0.49、1 cm2不同有效面积的太阳能电池,研究了短路电流密度、开路电压、填充因子等电池参数随器件面积的变化。通过引入方碱(SQ)染料作为第三组分,研究了聚[[4,8-二[(2-乙基己基)氧]苯并[1,2-b:4,5-b ']二噻吩-2,6-二基][3-氟-2-[(2-乙基己基)羰基]噻吩[3,4-b]噻吩二基]]:[6,6]-苯基- c70 -丁酸甲酯)(PTB7: PC70BM)基倒置体异质结有机太阳能电池的性能。制备了ITO/ ZnO/有源层/ MoO3 /Ag结构的光电器件,其中原初PTB7: PCBM有源层和不同SQ浓度的PTB7: PCBM: SQ有源层,并在100 mWcm−2的光照强度下测量了其J-V特性。详细分析了SQ的引入对PTB7: PCBM太阳能电池光伏参数的影响。记录了二元和三元共混物的紫外-可见-近红外吸收光谱,研究了三元共混物中SQ的不同添加量对其吸收的影响。用原子力显微镜分析了共混膜的形貌。研究……的影响
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