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High-performance photovoltaic behavior of oriented purple membrane polymer composite films

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dc.contributorVirginia Techen
dc.contributor.authorZhang, L. M.en
dc.contributor.authorZeng, T. Y.en
dc.contributor.authorCooper, K. L.en
dc.contributor.authorClaus, Richard O.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessed2014-02-05en
dc.date.accessioned2014-02-26T19:10:06Zen
dc.date.available2014-02-26T19:10:06Zen
dc.date.issued2003-04-01en
dc.description.abstractThe photovoltaic behavior of films in which bacteriorhodopsin molecules are embedded in a polyvinyl alcohol matrix has been investigated by using both pulsed laser excitation and regular light illumination. Response times as short as milliseconds, photocurrents as great as 120 muA/cm(2), and photovoltages as large as 3.8 V have been obtained. A theoretical model has been developed and used to extract several physical parameters and fit the experimental results. Some important intrinsic parameters have been obtained. Theoretical results indicate that the average displacement of the excited protons is on the order of several tens of microns. Other curve fits show that photocurrent and photovoltage increase linearly with external field, but increase exponentially with flash power. These theoretical models and results can be extended to other kinds of photoactive polymeric materials.en
dc.description.sponsorshipOptical Science and Engineering Research Centeren
dc.format.mimetypeapplication/pdfen
dc.identifier.citationZhang, LM; Zeng, TY; Cooper, K; et al. "High-performance photovoltaic behavior of oriented purple membrane polymer composite films," Biophysical Journal 84(4), 2502-2507 (2003); doi: 10.1016/s0006-3495(03)75055-3en
dc.identifier.doihttps://doi.org/10.1016/s0006-3495(03)75055-3en
dc.identifier.issn0006-3495en
dc.identifier.urihttp://hdl.handle.net/10919/25783en
dc.identifier.urlhttp://www.sciencedirect.com/science/article/pii/S0006349503750553en
dc.language.isoenen
dc.publisherCell Pressen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectElectric fieldsen
dc.subjectBacteriorhodopsin photocycleen
dc.subjectHalobacterium-halobiumen
dc.subjectProton pumpen
dc.subjectSignalsen
dc.titleHigh-performance photovoltaic behavior of oriented purple membrane polymer composite filmsen
dc.title.serialBiophysical Journalen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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