期刊
JOURNAL OF POWER SOURCES
卷 284, 期 -, 页码 178-185出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2015.03.032
关键词
Dye-sensitized solar cell; Polyaniline; Counter electrode; Solid-state electrolyte
资金
- Fundamental Research Funds for the Central Universities [201313001, 201312005]
- Shandong Province Outstanding Youth Scientist Foundation Plan [BS2013CL015]
- Shandong Provincial Natural Science Foundation [ZR2011BQ017]
- Research Project for the Application Foundation in Qingdao [13-1-4-198-jch]
- National Natural Science Foundation of China [51102219, 51342008, U1037604]
- National High Technology Research and Development Program of China [2010AA09Z203, 2010AA0 65104]
- National Key Technology Support Program [2012BAB15B02]
Pursuit of technological implementation with no sacrifice of photovoltaic performances has been a persistent objective for dye-sensitized solar cells (DSSCs). We launch here the experimental realization of a class of DSSCs consisting of polyaniline (PANi) incorporated TiO2 anodes, PANi counter electrodes (CEs), and iodide doped PANi solid-state electrolytes. The PANi filled in photoanode can inject electrons for dye recovery, whereas the PANi CE fulfills the function of reducing triiodide into iodide ions. In particular, the solid PANi electrolyte has an ability of catalyzing triiodide species, shortening charge diffusion path length, and recovering dye molecules at anode/electrolyte interface. The photovoltaic performances are optimized by adjusting assembly process and lithium iodide dosage, yielding a maximum efficiency as high as 3.1% in the resultant DSSC device accompanied with fast start-up, multiple start/stop cycling, and good stability under persistent irradiation. (C) 2015 Elsevier B.V. All rights reserved.
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