Electrical and optical properties of phenylene vinylene oligomers obtained by vacuum evaporation

1996 ◽  
Vol 83 (3) ◽  
pp. 185-188 ◽  
Author(s):  
V. Parkhutik ◽  
R. Fenollosa Esteve ◽  
T.P. Nguyen ◽  
P. Le Rendu ◽  
V.H. Tran
Keyword(s):  
Optical Properties ◽  
Vacuum Evaporation ◽  
Phenylene Vinylene ◽  
Electrical And Optical Properties

Tailoring of the electrical and optical properties of poly (p-phenylene vinylene)

1996 ◽  
Vol 76 (1-3) ◽  
pp. 109-112 ◽  
Author(s):  
M. Herold ◽  
J. Gmeiner ◽  
W. Rieβ ◽  
M. Schwoerer
Keyword(s):  
Optical Properties ◽  
Phenylene Vinylene ◽  
Electrical And Optical Properties

Physical Properties of MEH-PPV Thin Films at Different Ageing

2015 ◽  
Vol 1109 ◽  
pp. 534-538
Author(s):  
Najwa Ezira Ahmed Azhar ◽  
A.K.S. Shafura ◽  
Irma Hidayanti Halim Affendi ◽  
Shafinaz Sobihana Shariffudin ◽  
Mohamad Rusop
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Spin Coating ◽  
Ageing Time ◽  
Toluene Solution ◽  
Band Gaps ◽  
Phenylene Vinylene ◽  
Electrical And Optical Properties ◽  
Uv Visible ◽  
Atom Force Microscope

Poly (2-methoxy-5(2’-ethylhexyloxy)-phenylene vinylene) (MEH-PPV) thin films were deposited by spin-coating technique. The MEH-PPV powders were dissolved in toluene solution. In this study, we report the effect of ageing on electrical and optical properties MEH-PPV thin films. The thickness of MEH-PPV increased as ageing time increased. The electrical properties were obtained using 2-point probe. The resistivity of thin films decreased as ageing time increased and vice versa with conductivity. The optical properties were investigated using UV-Visible-NIR (UV-VIS-NIR) and atom force microscope (AFM). From UV-Vis result shows the lower band gaps of films in toluene solution proved MEH-PPV has longer conjugation segments. The surface roughness of thin films decreased with the increased of ageing time; which is caused by the aggregation of the MEH-PPV. The PL spectra show the quenching of emission might be due to the conjugation of length polymer changes in different ageing times.

Electrical and Optical Properties of Poly(p-phenylene vinylene) and Effects of Electrochemical Doping

1986 ◽  
Vol 25 (Part 1, No. 6) ◽  
pp. 881-884 ◽  
Author(s):  
Katsumi Yoshino ◽  
Tohru Takiguchi ◽  
Shigenori Hayashi ◽  
Dae Hee Park ◽  
Ryu-ichi Sugimoto
Keyword(s):  
Optical Properties ◽  
Phenylene Vinylene ◽  
Electrical And Optical Properties ◽  
Electrochemical Doping
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