Charge Transport Mechanism in Thin Cuticles Holding Nandi Flame Seeds
Metal-sample-metal sandwich configuration has been used to investigate DC conductivity in 4 𝜇m 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...
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| Format: | Article |
| Language: | English |
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Wiley
2009-01-01
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| Series: | International Journal of Biomaterials |
| Online Access: | http://dx.doi.org/10.1155/2009/548406 |
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| author | Wycliffe K. Kipnusu Gabriel Katana Charles M. Migwi I. V. S. Rathore Joshua R. Sangoro |
| author_facet | Wycliffe K. Kipnusu Gabriel Katana Charles M. Migwi I. V. S. Rathore Joshua R. Sangoro |
| author_sort | Wycliffe K. Kipnusu |
| collection | DOAJ |
| description | Metal-sample-metal sandwich configuration has been used to investigate DC conductivity in 4 𝜇m 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 4.06×10−5(m2V−1s−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(𝐸𝐹)≈9.04×1019(eV−1cm−3) and hopping distance 𝑅≈1.44×10−7 cm, while the hopping energy (𝑊) was in the range of 0.72 eV–0.98 eV. |
| format | Article |
| id | doaj-art-3618ccb465424a92a83529a8ca369b6f |
| institution | Kabale University |
| issn | 1687-8787 1687-8795 |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Biomaterials |
| spelling | doaj-art-3618ccb465424a92a83529a8ca369b6f2025-02-03T07:24:42ZengWileyInternational Journal of Biomaterials1687-87871687-87952009-01-01200910.1155/2009/548406548406Charge Transport Mechanism in Thin Cuticles Holding Nandi Flame SeedsWycliffe K. Kipnusu0Gabriel Katana1Charles M. Migwi2I. V. S. Rathore3Joshua R. Sangoro4Physics Department, Kenyatta University, P.O. Box 43844-00100, Nairobi, KenyaPhysics Department, Kenyatta University, P.O. Box 43844-00100, Nairobi, KenyaPhysics Department, Kenyatta University, P.O. Box 43844-00100, Nairobi, KenyaPhysics Department, Kenyatta University, P.O. Box 43844-00100, Nairobi, KenyaInstitute of Experimental Physics I, University of Leipzig, 04103 Leipzig, GermanyMetal-sample-metal sandwich configuration has been used to investigate DC conductivity in 4 𝜇m 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 4.06×10−5(m2V−1s−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(𝐸𝐹)≈9.04×1019(eV−1cm−3) and hopping distance 𝑅≈1.44×10−7 cm, while the hopping energy (𝑊) was in the range of 0.72 eV–0.98 eV.http://dx.doi.org/10.1155/2009/548406 |
| spellingShingle | Wycliffe K. Kipnusu Gabriel Katana Charles M. Migwi I. V. S. Rathore Joshua R. Sangoro Charge Transport Mechanism in Thin Cuticles Holding Nandi Flame Seeds International Journal of Biomaterials |
| title | Charge Transport Mechanism in Thin Cuticles Holding Nandi Flame Seeds |
| title_full | Charge Transport Mechanism in Thin Cuticles Holding Nandi Flame Seeds |
| title_fullStr | Charge Transport Mechanism in Thin Cuticles Holding Nandi Flame Seeds |
| title_full_unstemmed | Charge Transport Mechanism in Thin Cuticles Holding Nandi Flame Seeds |
| title_short | Charge Transport Mechanism in Thin Cuticles Holding Nandi Flame Seeds |
| title_sort | charge transport mechanism in thin cuticles holding nandi flame seeds |
| url | http://dx.doi.org/10.1155/2009/548406 |
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