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Volume 5, Issue 2 (International Journal of Optics and Photonics (IJOP) Vol 5, No 2, Summer-Fall 2011)
IJOP 2011, 5(2): 111-120 |
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Vidya G, Joseph R, Prathapan S, Radhakrishnan P, Vallabhan C P, Nampoori V et al . Multimode Emissions from MEH-PPV Blended with Polystyrene Film Waveguides. IJOP 2011; 5 (2) :111-120
URL: http://ijop.ir/article-1-88-en.html
URL: http://ijop.ir/article-1-88-en.html
G. Vidya1 
, Rani Joseph1 , S. Prathapan2 , P. Radhakrishnan3 , C. P.G. Vallabhan4 , V.P.N. Nampoori3 , G. Sreelekha * 3
, Rani Joseph1 , S. Prathapan2 , P. Radhakrishnan3 , C. P.G. Vallabhan4 , V.P.N. Nampoori3 , G. Sreelekha * 3
1- Department of Polymer Science and Rubber Technology
2- Department of Applied Chemistry, Cochin University of Science and Technology, Cochin-22, Kerala, India
3- aInternational School of Photonics
4- Centre of Excellence in Lasers and Optoelectronic Sciences
2- Department of Applied Chemistry, Cochin University of Science and Technology, Cochin-22, Kerala, India
3- aInternational School of Photonics
4- Centre of Excellence in Lasers and Optoelectronic Sciences
Abstract: (5975 Views)
In the context of conjugated polymers, especially those of the poly (phenylenevinylene) (PPV) family, which are promising candidates as emission material in light emitting devices such as LEDs, field effect transistors and photovoltaic devices, we have, in the present study, prepared MEH-PPV [Poly [2- methoxy-5-(2’-ethyl-hexyloxy)-1,4-phenylen-evinylene] of low molecular weight and low polydispersity index. We discuss the thickness dependent fluorescence emission from the film waveguides fabricated with the above blends.Of the two peaks observed in this fluorescence spectrum, the shorter wavelength peak (562nm) is dominant in the range of lower thickness and as thickness is increased the longer wavelength peak (600nm) predominates. We also discuss the multimode laser emission from free standing MEH-PPV/Polystyrene film waveguides blends which show the nature of improvement in lasing behavior. The gain studies show that free standing film of MEH-PPV blended with Polystyrene can be used as a compact solid state laser.
Type of Study: Research |
Subject:
General
Received: 2013/06/20 | Revised: 2015/03/10 | Accepted: 2013/06/20 | Published: 2015/03/10
Received: 2013/06/20 | Revised: 2015/03/10 | Accepted: 2013/06/20 | Published: 2015/03/10
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