Optical and electrical properties of indium tin oxide nanofibers prepared by

   electrospinning

Muhammad Miftahul Munir et al 2008 Nanotechnology 19 145603 (6pp)   doi:10.1088/0957-4484/19/14/145603

Muhammad Miftahul Munir¹, Ferry Iskandar¹, Ki Myoung Yun¹, Kikuo Okuyama¹ and Mikrajuddin Abdullah²

¹ Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, Higashi

 hiroshima, Hiroshima 739-8527, Japan

² Department of Physics, Bandung Institute of Technology (ITB), Jalan Ganesa 10 Bandung 40132,

 Indonesia

E-mail: okuyama@hiroshima-u.ac.jp

Abstract. 

Indium tin oxide (ITO) nanofibers were successfully prepared via an electrospinning method, followed by annealing at 400 °C. Mixed solutions of ITO nanoparticle sol and polyethylene oxide (PEO) were used as precursors of the nanofibers. The PEO decomposed during annealing to yield ITO fibers. The fibers were characterized by scanning electron microscopy (SEM), x-ray diffraction (XRD), thermo-gravimetric/differential thermal analysis (TG/DTA), UV–vis spectrophotometry and four-probe resistivity measurements. The diameter of the prepared fibers was controlled by adjusting the flow rate and the applied electric current. In2O3 crystallized in the ITO nanofibers with a crystallite size of 27 nm. The optical transmittance in the visible region approached 90% in films deposited for 5 min, confirming that the nanofiber film is still transparent in the optical region. The sheet resistance of the nanofiber film was linearly dependent on the inverse of the deposition time and on the PEO/ITO ratio.