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Dynamics of Photoexcited Carriers in Poly(P-Phenylenevinylene) and Its Soluble Derivative
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Changhee | - |
dc.contributor.author | Yu, G. | - |
dc.contributor.author | Moses, D. | - |
dc.contributor.author | Heeger, A. J. | - |
dc.date.accessioned | 2009-11-23T04:32:22Z | - |
dc.date.available | 2009-11-23T04:32:22Z | - |
dc.date.issued | 1995 | - |
dc.identifier.citation | Synth. Met. 69 (1995) 429 | en |
dc.identifier.issn | 0379-6779 | - |
dc.identifier.uri | https://hdl.handle.net/10371/13731 | - |
dc.description.abstract | The dynamics of photoexcited carriers in poly(p-phenylene vinylene) (PPV) and its soluble derivative, poly[2-methoxy-5-(2′-ethylhexyloxy)-p-phenylenevinylene] (MEH-PPV) are studied using the measurement of subnanosecond transient photoconductivity (PC). An initial transient photocurrent decays in the subnanosecond time regime, followed by a thermally-activated slow tail. The magnitude of the peak transient PC is almost temperature independent and proportional to the light intensity and electric field. The results are interpreted as a free carrier generation via a π-π* interband transition. The transient PC in MEH-PPV is an order of magnitude smaller than that in PPV, indicating that the decrease of the interchain coupling due to the bulky side-chains results in a smaller quantum efficiency for carrier generation. | en |
dc.language.iso | en | - |
dc.publisher | Elsevier | en |
dc.title | Dynamics of Photoexcited Carriers in Poly(P-Phenylenevinylene) and Its Soluble Derivative | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 이창희 | - |
dc.identifier.doi | 10.1016/0379-6779(94)02515-Z | - |
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