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Highly efficiency p-type dye sensitized solar cells based on polygonal star-morphology Cu2O material of photocathodes

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Abstract

Cuprous oxide(Cu2O), as an important p-type semiconductor, has been widely investigated due to its high electron transmission and facile preparation. However, the electrode made of only Cu2O has been rarely investigated. In order to demonstrate the possibility that material Cu2O can be applied to the electrode of p-type dye sensitized solar cells(DSSCs), the photo-electrodes made of prepared Cu2O powder and commercial Cu2O particles have been fabricated. The results show that the electrode based on as-prepared Cu2O(Cu2O-2) powder exhibits higher performance than that based on commercial Cu2O(Cu2O-1) particle. The device based on Cu2O-2 electrode reaches into an open-circuit voltage of 0.71 V, a short-circuit current density of 1.3 mA/cm2, a fill factor(FF) of 46%, and a conversion efficiency of 0.42% measured under AM 1.5G(100 mW/cm2) illumination. The enhancement performance of Cu2O-2 is attributed to the high dye adsorption of Cu2O-2 compared with that of Cu2O-1. To the best of our knowledge, this is the highest conversion efficiency value reported for solar cells based on Cu2O-DSSC. This work provides that Cu2O is also a candidate for constructing the electrode of p-type dye sensitized solar cells.

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Authors and Affiliations

  1. State Key Laboratory on Integrated Optoelectronics(Jilin University Region), College of Electronic Science and Engineering, Jilin University, Changchun, 130012, P. R. China

    Sisi Du, Pengfei Cheng, Peng Sun, Biao Wang, Yaxin Cai, Fengmin Liu, Jie Zheng & Geyu Lu

Authors
  1. Sisi Du
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  2. Pengfei Cheng
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  3. Peng Sun
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  4. Biao Wang
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  5. Yaxin Cai
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  6. Fengmin Liu
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  7. Jie Zheng
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  8. Geyu Lu
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Corresponding authors

Correspondence to Fengmin Liu or Geyu Lu.

Additional information

Supported by the National Natural Science Foundation of China(Nos.60906036, 61134010 and 61327804), the Program for Changjiang Scholars and Innovative Research Team in University of China(No.IRT13018), the National High Technolgy Research and Development Program of China(No.2013AA030902) and the Project Development Plan of Science and Technology of Jilin Province, China(No.20130521009JH).

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Du, S., Cheng, P., Sun, P. et al. Highly efficiency p-type dye sensitized solar cells based on polygonal star-morphology Cu2O material of photocathodes. Chem. Res. Chin. Univ. 30, 661–665 (2014). https://doi.org/10.1007/s40242-014-4020-3

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  • DOI: https://doi.org/10.1007/s40242-014-4020-3

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