Abstract
Polyacetylene was doped with hydrogen bromide (HBr) solution. The electrical conductivity of the solution-doped polyacetylene increased by an order of six from 5×10-9 S/cm to 4×10-3 S/cm. Here the stability of HBr-doped polyacetylene is discussed with respect to the changes in conductivity due to heat treatment and exposure to air, in comparison with I2-doped polyacetylene. The HBr-doped polyacetylene is slightly more stable than the I2-doped polyacetylene. The Al/cis-[CH(HBr)y]x/Au M-S Schottky barrier solar cell was fabricated, and its properties were investigated. The maximum energy conversion efficiency of the cell was 0.9% under the illumination of an incident light intensity of 10 mW/cm2.
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