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Low temperature processed ITO-free perovskite solar cells without a hole transport layer

机译：低温加工ITO的钙钛矿太阳能电池，没有空穴传输层

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摘要

Perovskite solar cells (PSCs) have been considered as a promising photovoltaic technology due to their attractive power conversion efficiency (PCE) exceeding 20% and ease of processability at low temperature. However, there have been a few reports on low temperature processed ITO-free PSCs. In this work, highly transparent and conductive poly(3,4-ethylenedioxythiophene): polystyrene sulfonate (HC-PEDOT:PSS, PH1000) was employed as electrode as an alternative material to ITO. PSCs built on three different electrodes (PH1000-5%, PH1000-10% and PH1000-H) with or without a hole transport layer (HTL) were fabricated. The factors that influence the performance of PSCs such as conductivity, morphology, work function and wettability of the electrode, morphology of perovskite films and different electrode treatments were investigated. A comparison of different electrodes as well as their corresponding impact on the device performance were also presented. The optimized average PCE of 7.95% with the highest PCE up to 9.65% for PSCs built on the PH1000-10% electrode without HTL were achieved. When a layer of PEDOT: PSS was spin coated on PH1000-H to prevent perovskite from decomposing, the optimized PCE of 6.98% with the highest up to 9.31% was achieved. Our results indicate that PH-1000 is a promising material to replace both ITO electrode and HTL, providing a much simpler architecture for flexible PSC applications.
机译：由于它们的功率转换效率（PCE）超过20％并且在低温下的加工性易于加工，因此被认为是一种有前景的光伏技术的光伏技术被认为是有前途的光伏技术。但是，在低温处理的ITO的PSC上有一些报道。在该工作中，高度透明和导电聚（3,4-亚乙二氧基噻吩）：聚苯乙烯磺酸盐（HC-PEDOT：PSS，PH100​​0）用作电极作为ITO的替代材料。制造在三种不同电极（pH1000-5％，pH1000-10％和pH1000-H）上构建的PSC，具有或不具有空穴传输层（HTL）。研究了影响PSC的性能，例如电导率，形态，功函数和电极的润湿性，钙钛矿膜的形态和不同电极处理的因素。还提出了不同电极的比较以及它们对设备性能的相应影响。优化的平均PCE为7.95％，最高PCE高达9.65％，对于没有HTL的PH100​​0-10％电极基于PH100​​0-10％电极。当一层PEDOT：PSS被旋涂在pH1000-H上以防止钙钛矿分解，最优化的PCE为6.98％，最高可达9.31％。我们的结果表明，PH-1000是更换ITO电极和HTL的有希望的材料，为灵活的PSC应用提供更简单的架构。

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  • 来源
    《RSC Advances》 |2015年第115期|共7页
  • 作者

    Liu Tang; Zuo Lijian; Ye Tao; Wu Jiake; Xue Guobiao; Fu Weifei; Chen Hongzheng;

  • 作者单位

    Zhejiang Univ State Key Lab Silicon Mat MOE Key Lab Macromol Synth &

    Functionalizat Dept Polymer Sci &

    Engn Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat MOE Key Lab Macromol Synth &

    Functionalizat Dept Polymer Sci &

    Engn Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat MOE Key Lab Macromol Synth &

    Functionalizat Dept Polymer Sci &

    Engn Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat MOE Key Lab Macromol Synth &

    Functionalizat Dept Polymer Sci &

    Engn Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat MOE Key Lab Macromol Synth &

    Functionalizat Dept Polymer Sci &

    Engn Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat MOE Key Lab Macromol Synth &

    Functionalizat Dept Polymer Sci &

    Engn Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat MOE Key Lab Macromol Synth &

    Functionalizat Dept Polymer Sci &

    Engn Hangzhou 310027 Zhejiang Peoples R China;

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