Variation of MEH-PPV layers with/without PEDOT:PSS layer in organic solar cells

International Conference on Advanced Materials for Better Future 2017

Suryana, R.^1,2 ; Tyas, L.K.^1 ; Nurosyid, F.^1,2

Physics Department of Graduate Program, Universitas Sebelas Maret, Indonesia^1

Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Sebelas Maret, Indonesia^2

关键词: 2 layer;    Absorbances;    Exciton diffusion;    MEH-PPV;    PEDOT:PSS;    Photocarrier;    Spin-coating method;    UV-vis spectroscopy;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/333/1/012022/pdf
DOI  :  10.1088/1757-899X/333/1/012022

来源: IOP

【 摘 要 】

Organic solar cell in structures of Glass/FTO/TiO2/MEH-PPV and Glass/FTO/TiO2/PEDOT:PSS/MEH-PPV were fabricated using spin coating method. The MEH-PPV layer was variated at 1 layer, 2 layer, 3 layer and 4 layer. All samples without/with PEDOT:PSS for each MEH-PPV layer were characterized using the UV-Vis spectroscopy to evaluate the absorbance, the cross-section SEM to determine the thickness of MEH-PPV layer and the I-V meter to calculate the performance of organic solar cell. The thickness for each MEH-PPV layer was 0.88 μm (1 layer), 1.14 μm (2 layer), 2.35 μm (3 layer) and 5.81 μm (4 layer). The absorbance of samples without/with PEDOT:PSS increase with increasing the thickness of MEH-PPV. Adding PEDOT:PSS can improve the performance of samples. It is considered that PEDOT:PSS can enhance hole collection, exciton diffusion and photocarrier transport.