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首页> 外文期刊>Applied Surface Science >Near 5% DMSO is the best: A structural investigation of PEDOT: PSS thin films with strong emphasis on surface and interface for hybrid solar cell
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Near 5% DMSO is the best: A structural investigation of PEDOT: PSS thin films with strong emphasis on surface and interface for hybrid solar cell

机译：接近5％的DMSO最佳：PEDOT的结构研究：PSS薄膜，其重点是混合太阳能电池的表面和界面

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摘要

Effect of dimethyl sulfoxide (DMSO) doping on poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) thin films have been optimized for obtaining better hole transport layer in hybrid solar cell. The correlation between morphology and conductivity is established through atomic force microscopy and transmission length method measurements. On the other hand, change in the shape of the building blocks (from spheroidal-like to ellipsoidal-like) in the PEDOT:PSS films with DMSO concentration is apparent from their electron density profiles and topographies, suggesting possible conformational change (from coil-like to rod-like) in film by X-ray reflectivity. Such change is further evident from their compositional profiles, work functions and electronic band structures estimated from X-ray and ultraviolet photoelectron spectroscopies. In fact, complementary information suggest that near 5% DMSO doped PEDOT:PSS film is governed through maximum inplane extended ellipsoidal-like blocks as well as well-organized in out-of-plane ordering which is likely to be the optimum structure for increased the highest electrical conductivity up to 1230 S/cm. Finally, maximum power conversion efficiency of 11% with open-circuit voltages around 600 mV, a short-circuit current density higher than 30 mA/cm(2) and a fill factor of 59.4% is achieved for the 5% DMSO doped PEDOT:PSS-Si hybrid solar cell, which is perfectly correlated with their structure.
机译：已对二甲基亚砜（DMSO）掺杂对聚（3,4-乙撑二氧噻吩）-聚（苯乙烯磺酸盐）（PEDOT：PSS）薄膜的影响进行了优化，以在混合太阳能电池中获得更好的空穴传输层。形态和电导率之间的相关性是通过原子力显微镜和透射长度法测量确定的。另一方面，具有DMSO浓度的PEDOT：PSS膜的结构块形状的变化（从球形到椭圆形）从其电子密度分布和形貌上很明显，表明可能的构象变化（从线圈通过X射线反射率在胶片中呈棒状）。从其组成轮廓，功函数和根据X射线和紫外光电子能谱估计的电子能带结构，这种变化更加明显。实际上，补充信息表明，接近5％DMSO掺杂的PEDOT：PSS薄膜是通过最大的面内延伸椭圆形块控制的，并且组织合理地以面外有序排列，这很可能是增加膜厚的最佳结构。最高电导率高达1230 S / cm。最后，对于5％DMSO掺杂的PEDOT，在600 mV左右的开路电压，短于30 mA / cm（2）的短路电流密度和59.4％的填充系数的情况下，最大功率转换效率为11％： PSS / n-Si混合太阳能电池，与其结构完美相关。

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  • 来源
    《Applied Surface Science》 |2020年第1期|143967.1-143967.9|共9页
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  • 作者单位

    Saha Inst Nucl Phys 1-AF Bidhannagar Kolkata 700064 India|Univ Politecn Cataluna Dept Elect Engn ES-08034 Barcelona Spain;

    Univ Politecn Cataluna Dept Elect Engn ES-08034 Barcelona Spain;

    Saha Inst Nucl Phys 1-AF Bidhannagar Kolkata 700064 India;

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  • 正文语种 eng
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  • 关键词

    PEDOT:PSS; DMSO doping; Morphology; Conductivity; Hybrid solar cell;

    机译：PEDOT：PSS;DMSO掺杂;形态学;电导率混合太阳能电池;

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