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Comprehensive study of efficient dye-sensitized solar cells based on the binary ionic liquid electrolyte by modifying with additives and iodine

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Abstract

The photovoltaic performance of dye-sensitized solar cells (DSSCs) is enhanced by modifying the binary room temperature ionic liquid (RTIL) electrolyte with additives and iodine. The average photoelectric conversion efficiency (PCE) of 6.39% is achieved. Through electrochemical impedance spectroscopy (EIS), cyclic voltammetry scans and incident photon-to-current conversion efficiency (IPCE) data, the working principles are analyzed. The enhancement is mainly attributed to the improvement of short circuit current which is caused by the reduction of overall internal resistance of the devices. Durability tests are measured at room temperature, and the long-term stability performance can be maintained.

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Authors and Affiliations

  1. School of Optoelectronic Engineering, Nanjing University of Posts & Telecommunications, Nanjing, 210023, China

    Ao-qiang Mo  (莫敖强), Wu-yang Wang  (汪午阳) & Zhong-cheng Liang  (梁忠诚)

  2. School of Material Science and Engineering, Nanjing University of Posts & Telecommunications, Nanjing, 210023, China

    Da-peng Cao  (曹大鹏), Xue-yan Li  (李薛燕), Bao-xiu Mi  (密保秀) & Zhi-qiang Gao  (高志强)

  3. ZTE Nanjing Branch, Nanjing, 210023, China

    Wu-yang Wang  (汪午阳)

  4. National Synergetic Innovation Center for Advanced Materials, Nanjing University of Posts&Telecommunications, Nanjing, 210023, China

    Bao-xiu Mi  (密保秀)

Authors
  1. Ao-qiang Mo  (莫敖强)
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  2. Da-peng Cao  (曹大鹏)
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  3. Wu-yang Wang  (汪午阳)
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  4. Xue-yan Li  (李薛燕)
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  5. Bao-xiu Mi  (密保秀)
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  6. Zhi-qiang Gao  (高志强)
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  7. Zhong-cheng Liang  (梁忠诚)
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Corresponding author

Correspondence to Zhong-cheng Liang  (梁忠诚).

Additional information

This work has been supported by the National Natural Science Foundation of China (No.61474064).

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Mo, Aq., Cao, Dp., Wang, Wy. et al. Comprehensive study of efficient dye-sensitized solar cells based on the binary ionic liquid electrolyte by modifying with additives and iodine. Optoelectron. Lett. 13, 263–267 (2017). https://doi.org/10.1007/s11801-017-7088-4

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  • DOI: https://doi.org/10.1007/s11801-017-7088-4

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