Charge Transport Mechanism in Thin Cuticles Holding Nandi Flame Seeds
dc.contributor.author | Rathore, I. V. S. | |
dc.contributor.author | Kipnusu, Wycliffe K | |
dc.contributor.author | Katana, Gabriel | |
dc.contributor.author | Migwi, C. M. | |
dc.contributor.author | Sangoro, Joshua R | |
dc.date.accessioned | 2013-10-29T11:48:22Z | |
dc.date.available | 2013-10-29T11:48:22Z | |
dc.date.issued | 2009 | |
dc.description | DOI:10.1155/2009/548406 | en_US |
dc.description.abstract | Metal-sample-metal sandwich configuration has been used to investigate DC conductivity in 4 mum thick Nandi flame [Spathodea campanulata P. Beauv.] seed cuticles. J-V characteristics showed ohmic conduction at low fields and space charge limited current at high fields. Charge mobility in ohmic region was 4.06 x 10(-5) (m(2)V(-1)s(-1)). Temperature-dependent conductivity measurements have been carried out in the temperature range 320 K < T > 450 K. Activation energy within a temperature of 320 K-440 K was about 0.86 eV. Variable range hopping (VRH) is the main current transport mechanism at the range of 330-440 K. The VRH mechanism was analyzed based on Mott theory and the Mott parameters: density of localized states near the Fermi-level N(E(F)) approximately 9.04 x 10(19) (eV(-1)cm(-3)) and hopping distance R approximately 1.44 x 10(-7) cm, while the hopping energy (W) was in the range of 0.72 eV-0.98 eV. | en_US |
dc.identifier.citation | International Journal of Biomaterials 01/2009; 2009:548406 | en_US |
dc.identifier.uri | http://ir-library.ku.ac.ke/handle/123456789/7539 | |
dc.language.iso | en | en_US |
dc.publisher | International Journal of Biomaterials | en_US |
dc.title | Charge Transport Mechanism in Thin Cuticles Holding Nandi Flame Seeds | en_US |
dc.type | Article | en_US |
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