Solid State Science and Technology, Vol. 15, No 1 (2007) 141-146
Corresponding Author: email@example.com
STRUCTURAL AND OPTICAL STUDIES OF MEH-PPV USING TWO
DIFFERENT SOLVENTS PREPARED BY SPIN COATING TECHNIQUE
Nurjuliana Juhari, Wan Haliza Abd. Majid and Zainol Abidin Ibrahim
Solid State Laboratory, Department of Physics, Faculty of Science,
University of Malaya,50603 Kuala Lumpur
Spin coating technique is commonly used to obtain uniform thin films. Conducting
unsaturated polymer of red colour poly [2-methoxy-5-(2’-ethylhexyloxy)-1,4-phenylene
vinylene] (MEH-PPV), can be easily dissolved in non-aromatic and aromatic solvents to
exhibit different optical and structural properties. The MEH-PPV solutions in the two
type of solvents were prepared at concentration of 8mgml-1. They were then spin coated
onto glass and calsium difloride (CaF2) substrates at 4krpm for 10 seconds. The spun
films of MEH-PPV on glass substrates were used for investigating the optical properties
by using UV-Visible-NIR (UV-VIS-NIR) and Photoluminescence (PL) spectroscopy.
The structural properties of the films were investigated by Fourier Transform Infrared
(FTIR) spectroscopy. The structural transformations of the films when annealed at 76°C
and 140ºC were also studied by analysing and comparing the FTIR spectra of the films
at that specific temperature
. Guo, Tzung-Fang, Y.Yang, (2002); Applied Physics Letter, 80 (1), 148.
. Sha-Yu, Li, Xiong, et al., (2004); Chinese Journal of Chemistry, 22, 80.
. Kang, Bonan, Yang, Yong, et al. (2004): Displays, 22,151.
. Ram, Manoj Ku, Sarkar, Nabin, et al. (2001); Synthetic Metals, 122, 369.
. Kim, Kyungkon, Lee, Dong Won et al; (2000) Synthetic Metals, 114, 49.
. Zhang, Hairong, et al. (2001); J. of Photochem and Photobiy A: Chem, 147,
. Nguyen, Thuc-Quyen, et al. (1999); J. of Chem. Physics, 110 (8), 4068.
. Shi, Y., Liu, J. and Yang, Y., (2000); Journal of Applied Physics, 87(9), 4254.
. Vij, D.R., (2004); Handbook of Electroluminescence Material, I0P, Chapter 4.