ETRI Journal

  • 제27권3호
  • /
  • Pages.319-325
  • /
  • 2005
  • /
  • 1225-6463(pISSN)
  • /
  • 2233-7326(eISSN)
한국전자통신연구원 (Electronics and Telecommunications Research Institute)
권호 표지

Estimation of Electrical Parameters of OD Organic Semiconductor Diode from Measured I-V Characteristics

  • Moiz, Syed Abdul (Ghulam Ishaq Khan Institute of Engg. Sc. & Tech.,) ;
  • Ahmed, Mansoor M. (Ghulam Ishaq Khan Institute of Engg. Sc. & Tech.,) ;
  • Karimov, Kh. S. (Ghulam Ishaq Khan Institute of Engg. Sc. & Tech.,)
  • 투고 : 2004.06.22
  • 발행 : 2005.06.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper the effect of temperature on the electrical properties of organic semiconductor disperse orange dye 25 (OD) have been examined. Thin films of OD have been deposited on $In_{2}O_{3}$ substrates using a centrifugal machine. DC current-voltage (I-V) characteristics of the fabricated devices $(Al/OD/In_{2}O_{3)$ have been evaluated at varying temperatures ranging from 40 to $60^{\circ}C$. A rectification behavior in these devices has been observed such that the rectifying ratio increases as a function of temperature. I-V characteristics observed in $Al/OD/In_{2}O_{3)$ devices have been classified as low temperature $({\leq} 50^{\circ}C)$ and high temperature characteristics (approximately $60^{\circ}C$). Low temperature characteristics have been explained on the basis of the charge transport mechanism associated with free carriers available in OD, whereas high temperature characteristics have been explained on the basis of the trapped space-charge-limited current. Different electrical parameters such as traps factor, free carrier density, trapped carrier density, trap density of states, and effective mobility have been determined from the observed temperature dependent I-V characteristics. It has been shown that the traps factor, effective mobility, and free carrier density increase with increasing values of temperature, whilst no significant change has been observed in the trap density of states.

키워드

참고문헌

  1. J. of Material Chemistry v.10 Organic Materials for Electronic and Optoelectronic Devices Shirota, Y.
  2. Int’l J. of High Speed Electronics and Systems v.11 no.2 Electrical Transport in Organic Semiconductor Campbell, I.H.;Smith, D.L.
  3. Eurasian ChemTech J. v.5 Electrical Properties of Organic Semiconductor Orange Nitrogen Dye Thin Film Deposited from Solution at High Gravity Karimov, Kh.S.;Ahmed, M.M.;Moiz, S.A.;Babadzhanov, P.;Marupov, R.;Turaeva, M.A.
  4. Int’l Workshop on Physics and Technology of Thin Films Electrical Properties of Organic Semiconductor Thin Films Deposited from Solution at High Gravity Karimov, Kh.S.;Ahmed, M.M.;Khan, M.N.;Moiz, S.A.;Tureava, M.A.
  5. J. of Applied Physics v.82 no.12 Space Charge Limited Conduction with Traps in Poly (phenylene vinylene) Light Emitting Diode Chempbell, A.J.;Bradley, D.D.C.;Lidzey, D.G.
  6. J. of Applied Physics v.92 no.7 Temperature Dependence of Carrier Transport in Conducting Polymers: Similarity to Amorphous Inorganic Semiconductor Kapoor, A.K.;Jain, S.C.;Poortmans, J.;Kumar, V.;Mertens, R.
  7. Applied Physics Lett. v.76 no.25 Electric Field Dependence of Mobility in Conjugated Polymer Films Rakhmanova, S.V.;Conwell, E.M.
  8. J. of Applied Physics v.33 no.1 Space Charge Limited Currents in Organic Crystals Mark, P.;Helfrich, W.
  9. Phys. Stat. Sol.(a) no.6 Electronic Traps in Organic Transport Layers Schmechel, R.;Seggern, H.V.
  10. Polymer International no.53 Space Charge Limited Conduction in Polyaniline Films Nazeer, K.P.;Jacob, S.A.;Thamilselvan, M.T.;Mangalaraj, D.;Narayandass, S.K.;Yi, J.
  11. J. of Applied Physics v.94 no.2 Trap Density in Conducting Organic Semiconductors Determined from Temperature Dependence of J-V Characteristics Kumar, V.;Jain, S.C.;Kapoor, A.K.;Poortmans, J.;Mertens, R.
  12. IEEE Tran. on Electron Devices v.51 no.1 Temperature-Dependent I-V Characteristics of Organic-Inorganic Heterojunction Diodes Ahmed, M.M.;Karimov, Kh.S.;Moiz, S.A.
  13. Current Injection in Solids Lampert, M.A.
  14. IBM J. Res and Dev. v.45 no.1 Influence of Trapped and Interfacial Charges in Organic Multilayer Light Emitting Devices Riess, W.;Reil, H.;Beielein, T.;Brutting, W.;Muller, P.;Seidler, P.F.
  15. Semiconducting Polymers: Chemistry, Physics and Engineering Hadziioannou, G.;Hutten, P.F.