Water-soluble poly(3,4-ethylenedioxythiophene)/nano-crystalline TiO2 heterojunction solar cells |
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Authors: | Liang Shen |
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Affiliation: | State Key Laboratory on Integrated Optoelectronics, Jilin University, Changchun 130023, People's Republic of China |
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Abstract: | Nanocrystalline titanium dioxide (TiO2) thin films were prepared by the sol-gel method and were then used to fabricate an indium-tin oxide (ITO)/nano-crystalline TiO2/poly(3,4-ethylenedioxythiophene) (PEDOT)/Au device. The junction thus obtained shows a rectifying behavior. Their current-voltage (I-V) characteristics in dark indicate that a heterojunction at the nano-crystalline TiO2/PEDOT interface has been created. The measured open-circuit voltage (Voc) and short-circuit current (Isc) for the device under illumination with 50 mW/cm2 light intensity under AM 1.5 conditions (device dimension was 1 cm2) are Voc=0.39 V, Isc=54.9 μA/cm2, the filling factor (FF)=0.429 and the energy conversion efficiency (η)=0.03%. |
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Keywords: | TiO2 PEDOT Heterojunction |
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