دوره 5، شماره 2 - ( 4-1390 )                   جلد 5 شماره 2 صفحات 111-120 | برگشت به فهرست نسخه ها

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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-fa.html
Multimode Emissions from MEH-PPV Blended with Polystyrene Film Waveguides. نشریه انجمن اپتیک و فوتونیک ایران. 1390; 5 (2) :111-120

URL: http://ijop.ir/article-1-88-fa.html


چکیده:   (1586 مشاهده)
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.
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نوع مطالعه: پژوهشي | موضوع مقاله: عمومى
دریافت: ۱۳۹۲/۳/۳۰ | ویرایش نهایی: ۱۳۹۳/۱۲/۱۹ | پذیرش: ۱۳۹۲/۳/۳۰ | انتشار: ۱۳۹۳/۱۲/۱۹

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