Solid State Science and Technology, Vol. 15, No 1 (2007) 141-146

ISSN 0128-7389

Corresponding Author: juliana_juhari@yahoo.com

141

 

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

 

ABSTRACT

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 76C

and 140C were also studied by analysing and comparing the FTIR spectra of the films

at that specific temperature

http://journal.masshp.net/wp-content/uploads/Journal/2007/Jilid%201/Nurjuliana%20Juhari%20141-146.pdf

REFERENCES

[1]. Guo, Tzung-Fang, Y.Yang, (2002); Applied Physics Letter, 80 (1), 148.

[2]. Sha-Yu, Li, Xiong, et al., (2004); Chinese Journal of Chemistry, 22, 80.

[3]. Kang, Bonan, Yang, Yong, et al. (2004): Displays, 22,151.

[4]. Ram, Manoj Ku, Sarkar, Nabin, et al. (2001); Synthetic Metals, 122, 369.

[5]. Kim, Kyungkon, Lee, Dong Won et al; (2000) Synthetic Metals, 114, 49.

[6]. Zhang, Hairong, et al. (2001); J. of Photochem and Photobiy A: Chem, 147,

43.

[7]. Nguyen, Thuc-Quyen, et al. (1999); J. of Chem. Physics, 110 (8), 4068.

[8]. Shi, Y., Liu, J. and Yang, Y., (2000); Journal of Applied Physics, 87(9), 4254.

[9]. Vij, D.R., (2004); Handbook of Electroluminescence Material, I0P, Chapter 4.

pp 531.