| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Electrical Characteristics of Al/CNT/NiPc/PEPC/Ag Surface-Type Cell |
| Mutabar Shah1, Kh. S. Karimov1,2, Zubair Ahmad1,3, M. H. Sayyad1 |
1Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi-23640, Swabi, N.W.F.P, Pakistan
2Physical Technical Institute of Academy of Sciences, Rudaki Ave.33, Dushanbe, 734025, Tajikistan
3Department of Mechanical Engineering, University of Auckland, 20 Symonds Street Auckland, New Zealand
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| Cite this article: |
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Mutabar Shah, Kh. S. Karimov, Zubair Ahmad et al 2010 Chin. Phys. Lett. 27 106102 |
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Abstract The blend of nickel phthalocyanine (NiPc) (2 wt.%) poly-N-epoxypropylcarbazole (PEPC), (1 wt.%) and carbon nano-tube (CNT) powder (2 wt.%) in benzole is deposited by drop-casting on glass substrates with pre-deposited metallic electrodes to fabricate Ag/CNT/NiPc/PEPC/Al surface type cell. It is assumed that the high nonlinearity of the I−V characteristics is related to deep traps in the nano-scale depletion region in NiPc that is observed experimentally. The values of ideality factor and barrier height are determined from the I−V curve and they are found to be 8.4 and 1.05 eV, respectively. The values of mobility and conductivity are calculated to be 7.94×10−8 cm2/Vs and 3.5×10−6 Ω-1cm−1. The values of ideality factor and series resistance are also calculated by using Cheung's functions, which are in good agreement with the values calculated from the I−V curve.
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| Keywords:
61.82.Pv
07.07.Df
61.82.Fk
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Received: 22 March 2010
Published: 26 September 2010
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| PACS: |
61.82.Pv
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(Polymers, organic compounds)
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07.07.Df
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(Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing)
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61.82.Fk
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(Semiconductors)
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