期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 179, 期 -, 页码 297-304出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2017.12.024
关键词
Flexible transparent conductive film; Flexible solar cell; CuS film; Crackle pattern
资金
- National Nature Science Foundation of China [51502253, U1405226]
- Fujian Provincial Bureau of Science Technology [2014H6022]
- Guangdong Natural Science Foundation [2016A030310369]
- 1000 Talents Program from Xiamen University
- Fundamental Research Funds for the Central Universities of China [20720150030]
- 111 Project [B16029]
- Beijing Natural Science Foundation [2164076]
Here we present a highly flexible and large-area CuS transparent conductive film (TCF) fabricated by colloidal crackle pattern as a counter electrode (CE) for flexible dye sensitized solar cell (DSSC). This rectangular CuS TCF can be fabricated on arbitrary flexible substrates at low temperature and exhibits superior mechanical robustness in bending cycling measurement. The transmittance and conductivity can be accurately controlled by controlling the sizes and shapes of the crackle patterns, similar to 90% transmittance can be achieved when the sheet resistances (R-s) are similar to 60 Omega sq(-1). Moreover, such CuS TCF has strong receivable ability of pH (1-13) and temperature changes (0-100 degrees C). In the application of DSSC as CE, the cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) analyses of the CuS networks exhibit a comparable electrocatalytic behavior with the platinum (Pt) networks on polyethylene terephthalate (PET), yielding a power conversion efficiency (PCE) of 4.54% for DSSC based on CuS networks as CE and retaining > 90% PCE after 500 bending cycles. Such CuS TCF with high transparency, flexibility, conductivity and electrochemical catalytic ability shows great potentials in other wearable, light-weight electrochemical cells.
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