| 光谱学与光谱分析 |
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| Study of Poly (3,4-Ethylene Dioxythiophene):Poly (Styrene Sulfonate) by In-Situ Resonance Raman Spectroscopy |
| LIN Hai-bo, XU Xiao-xuan*,WANG Bin, WU Bin-lin, XU Jia-lin, YU Gang, ZHANG Cun-zhou |
| TEDA Applied Physics School, Nankai University, Tianjin 300457, China |
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Abstract Poly (3,4-ethylene dioxythiophene)(PEDOT): Poly (styrene sulfonate)(PSS) has attracted a lot of interest for application in organic electronics due to good stability and high electronic conductivity in its doped state. Indeed, thin layers of PEDOT: PSS was regularly used in light emitting diodes (PLEDs) as hole injection and transportation layer. Here, Doping and dedoping states of PEDOT:PSS were studied by absorbance spectra and Raman spectra. A new absorption band centered at 620 nm was observed on dedoped PEDOT:PSS. Consistently, Raman signals of dedoped PEDOT:PSS are resonantly intensified since the Raman excitation wavelength (633 nm) is set in the enhanced absorption band. So it gives a sensitive way to study the doping and dedoping states of PEDOT:PSS. Furthermore, for the encapsulated polymer light-emitting diodes, Raman spectroscopy is a powerful way to study the polymer layers inside the devices.
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Received: 2005-01-08
Accepted: 2005-04-06
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Corresponding Authors:
XU Xiao-xuan
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| Cite this article: |
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LIN Hai-bo,XU Xiao-xuan,WANG Bin, et al. Study of Poly (3,4-Ethylene Dioxythiophene):Poly (Styrene Sulfonate) by In-Situ Resonance Raman Spectroscopy [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(04): 646-648.
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https://www.gpxygpfx.com/EN/Y2006/V26/I04/646 |
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