Walid Aloui

Comparative Study of Deposit through a Membrane and Spin-Coated MWCNT as a Flexible Anode for Optoelectronic Applications

We present a comparative study between multiwalled carbon nanotubes MWCNTs thin films deposited on polyethylene terephthalate PET substrates using i spin-coating technique and ii deposition through a membrane. We deduce from transparence, electrical properties, and AFM image that deposition through membrane presents better properties than spin-coating method. The concentration comparison shows that the optimum result was achieved at a concentration of 1.2 mg·mL−1 corresponding to a resistance Rs of 180 Ω·cm−2 and an optical transparence of about 81% using a wavelength 550 nm. We will also demonstrate the use of the elaborated electrodes to fabricate the following flexible structure: PET-MWCNTs/MEH-PPV/Al. The series resistance Rs and the ideality factor n were calculated.