Photoconductivity in polyacetylene |
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| Authors: | S Etemad T Mitani M Ozaki TC Chung AJ Heeger AG MacDiarmid |
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| Institution: | Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, PA 19104, U.S.A. |
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| Abstract: | The results of steady state photoconductivity experiments on cis- and trans-(CH)x are interpreted in terms of charged solitons, photogenerated either directly (threshold hv = 4Δ/π) or indirectly through coupling of the lattice to electron-hole pair excitations (hv ? 2Δ). The transient photocurrent, after laser pulse excitation, decays as a power law, I(t) ? t?0.6, suggesting dispersive transport of the photogenerated carriers. |
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