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All Journal Indonesian Journal of Physics (IJP)
Hendro Hendro
Theoretical High Energy Physics and Instrumentation Research Division, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Indonesia
Astronomy Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering

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Effect of Voltage Bias at MEH-PPV Layer on SPR Wavelength observed during in-situ Measurement Method in Polymer Light Emitting Diode Hendro Hendro; Mitra Djamal; Rahmat Hidayat; Daniel Kurnia; Buchari Buchari
Indonesian Journal of Physics Vol 22 No 1 (2011): Vol. 22 No. 1, January 2011
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (454.859 KB) | DOI: 10.5614/itb.ijp.2011.22.1.2

Abstract

The shifting of surface plasmon resonance (SPR) wavelength has been observed during in situ measurement in polymer light emitting diode (pLED). Examination is performed using an pLED sample which has an ITO/PEDOT:PSS/MEH-PPV/Au structure. When the voltage bias is increased from 0 to 9 volt the SPR wavelength shifts from 612 nm to 628 nm and the absorption curve shifts to lower absorbance value. From the theoretical analysis, it can be understood that the change of the SPR dip and the absorption curves correspond to the change of dielectric constant of the MEH-PPV layer. These results show that SPR wavelength depends on the metal and air dielectric constant as well as on the MEH-PPV layer. These results also imply that the SPR wavelength being evaluated can be controlled by varying the voltage bias.
Co-Authors Buchari Buchari Daniel Kurnia Mitra Djamal Rahmat Hidayat