Blue-Gap Poly(p-phenylene vinylene)s with Fluorinated Double Bonds: Interplay Between Supramolecular Organization and Optical Properties in Thin Films

2009 ◽  
Vol 21 (10-11) ◽  
pp. 1115-1120 ◽  
Author(s):  
Maria Losurdo ◽  
Maria M. Giangregorio ◽  
Pio Capezzuto ◽  
Antonio Cardone ◽  
Carmela Martinelli ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Phenylene Vinylene ◽  
Supramolecular Organization ◽  
Double Bonds

Nonlinear Optical Properties of Poly(P-Phenylene Vinylene) Thin Films

1989 ◽  
pp. 143-147 ◽  
Author(s):  
C. Bubeck ◽  
A. Kaltbeitzel ◽  
R. W. Lenz ◽  
D. Neher ◽  
J. D. Stenger-Smith ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Phenylene Vinylene

Optical properties of single crystals and vacuum-deposited thin films of a substituted oligo(p-phenylene vinylene)

1998 ◽  
Vol 227 (1-2) ◽  
pp. 65-74 ◽  
Author(s):  
H.J. Brouwer ◽  
V.V. Krasnikov ◽  
T.A. Pham ◽  
R.E. Gill ◽  
P.F. van Hutten ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Single Crystals ◽  
Phenylene Vinylene

Impact of fluorinated vinylene units on supramolecular organization and optical properties of poly(p-phenylenedifluorovinylene) thin films as a class of blue band gap conjugated polymers

Polymer ◽  
2008 ◽  
Vol 49 (19) ◽  
pp. 4133-4140 ◽  
Author(s):  
Maria Losurdo ◽  
Maria M. Giangregorio ◽  
Pio Capezzuto ◽  
Giovanni Bruno ◽  
Francesco Babudri ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Conjugated Polymers ◽  
Band Gap ◽  
Supramolecular Organization ◽  
Blue Band

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.

Thickness effects on the optical properties of layer-by-layer poly(p-phenylene vinylene) thin films and their use in energy-modulated structures

2012 ◽  
Vol 12 (3) ◽  
pp. 870-874 ◽  
Author(s):  
E. Laureto ◽  
M.A.T. da Silva ◽  
R.V. Fernandes ◽  
J.L. Duarte ◽  
I.F.L. Dias ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Phenylene Vinylene ◽  
Layer By Layer ◽  
Modulated Structures

Effect of Different Solvents on the Optical Properties and Surface Morphology of MEH-PPV Thin Films

2013 ◽  
Vol 667 ◽  
pp. 402-406 ◽  
Author(s):  
N.Y. Zayana ◽  
Mohamad Rusop
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Surface Morphology ◽  
Spin Coating ◽  
Smooth Surface ◽  
Red Shift ◽  
Phenylene Vinylene ◽  
Sem Images ◽  
Aromatic Solvents ◽  
Peak Assignment

Thin films of poly [2-methoxy-5(2’-ethyl hexyloxy)-phenylene vinylene] (MEH-PPV) prepared from aromatic and non-aromatic solvents were obtained by spin coating techniques. The non-aromatic solvents used are chloroform and tetrahydrofuran (THF), while the aromatic solvents used are toluene and xylene. The UV-Vis and PL spectra of MEH-PPV thin films prepared from toluene and xylene slightly red shift compared to thin films from chloroform and THF. The shifting due to the aggregation formed in thin films. The SEM images of thin films prepared from aromatic solvents shows smooth surface while surface of thin films from non-aromatic is rough. The FTIR spectra of all samples show the same peak assignment of MEH-PPV.

OPTICAL PROPERTIES OF THIN FILMS ON ROUGH SURFACES

1983 ◽  
Vol 44 (C10) ◽  
pp. C10-363-C10-366 ◽  
Author(s):  
J. Vlieger ◽  
M. M. Wind
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Rough Surfaces
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