Electrical properties of inverted poly(3-hexylthiophene): Methano-fullerene [6,6]-phenyl C-71-butyric acid methyl ester bulk hetero-junction solar cell with Cs2CO3 and MoO3 layers

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We report the electrical properties of inverted P3HT:PC71BM bulk hetero-junction (IBHJ) with Cs2CO3 and MoO3 interlayers. The current density (J)-voltage (V) characteristics of the inverted P3HT:PC71BM bulk hetero-junction solar cells are studied, where MoO3 thickness is varied from 0.5 to 2 nm. The temperature independent, symmetric J-V characteristics in dark were found in the low bias voltage region between -0.35 and 0.35 V, and they exhibited the power law relationship J-V-1,V-2 when the MoO3 thickness is between 1 and 2 nm. Open-circuit voltages at various light intensities of the IBIAJ cell plotted as a function of absolute temperature converge to similar to 0.965 Vat zero temperature, which is very close to the energy difference between LUMO of PC71BM and HOMO of P3HT. (C) 2011 Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2011-12
Language
English
Article Type
Article
Keywords

POLYMER PHOTOVOLTAIC CELLS; TEMPERATURE; BLENDS

Citation

SOLAR ENERGY MATERIALS AND SOLAR CELLS, v.95, no.12, pp.3276 - 3280

ISSN
0927-0248
URI
http://hdl.handle.net/10203/99629
Appears in Collection
PH-Journal Papers(저널논문)
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