Electroabsorption spectroscopy of poly(m-phenylenevinylene-co-2,5-dioctoxy-p-phenylenevinylene) and related materials

Helen Mellor; Andreas Bleyer; Donal D.C. Bradley; Paul A. Lane; Simon J. Martin; Frank Rohlfing; Ali Tajbakhsh

doi:10.1117/12.279289

Electroabsorption spectroscopy of poly(m-phenylenevinylene-co-2,5-dioctoxy-p-phenylenevinylene) and related materials

Helen Mellor, Andreas Bleyer, Donal D.C. Bradley, Paul A. Lane, Simon J. Martin, Frank Rohlfing, Ali Tajbakhsh

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Scopus citations

Abstract

We report experimental studies of poly(m-phenylenevinylene-co-2,5-dioctoxy-phenylenevinylene) (PmPV-co-DOctOPV). Model oligomers based on this polymer have been synthesised and results on these materials are also presented. Electroabsorption measurements have been performed on spin coated films between 1.5 eV and 5 eV with electric fields of up to 200 KV/cm. Using Stark shift analysis the electroabsorption spectra are compared with the first derivative of the corresponding low temperature absorption spectra. We also investigate the effect of changes in chemical structure by studying the variation between the electroabsorption spectra of related materials. Samples of these polymers and oligomers that differ by the proportion of trans and cis vinylene bonds are also compared to see what effect the trans or cis bond has on the electronic structure. Increased cis content enhances emission efficiency but little alters the electroabsorption spectra. The results for the different materials are compared and several features occurring at the onset and at the minima of the electroabsorption spectra are considered. These features do not depend on the trans/cis ratio and we present evidence that suggests aggregation effects play an important role in these samples.

Original language	English (US)
Title of host publication	Proceedings of SPIE - The International Society for Optical Engineering
DOIs	https://doi.org/10.1117/12.279289
State	Published - Dec 1 1997
Externally published	Yes

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@inproceedings{3275a66fb6094a6d84e9e08d4a5662fc,

title = "Electroabsorption spectroscopy of poly(m-phenylenevinylene-co-2,5-dioctoxy-p-phenylenevinylene) and related materials",

abstract = "We report experimental studies of poly(m-phenylenevinylene-co-2,5-dioctoxy-phenylenevinylene) (PmPV-co-DOctOPV). Model oligomers based on this polymer have been synthesised and results on these materials are also presented. Electroabsorption measurements have been performed on spin coated films between 1.5 eV and 5 eV with electric fields of up to 200 KV/cm. Using Stark shift analysis the electroabsorption spectra are compared with the first derivative of the corresponding low temperature absorption spectra. We also investigate the effect of changes in chemical structure by studying the variation between the electroabsorption spectra of related materials. Samples of these polymers and oligomers that differ by the proportion of trans and cis vinylene bonds are also compared to see what effect the trans or cis bond has on the electronic structure. Increased cis content enhances emission efficiency but little alters the electroabsorption spectra. The results for the different materials are compared and several features occurring at the onset and at the minima of the electroabsorption spectra are considered. These features do not depend on the trans/cis ratio and we present evidence that suggests aggregation effects play an important role in these samples.",

author = "Helen Mellor and Andreas Bleyer and Bradley, {Donal D.C.} and Lane, {Paul A.} and Martin, {Simon J.} and Frank Rohlfing and Ali Tajbakhsh",

note = "Generated from Scopus record by KAUST IRTS on 2019-11-27",

year = "1997",

month = dec,

day = "1",

doi = "10.1117/12.279289",

language = "English (US)",

booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",

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T1 - Electroabsorption spectroscopy of poly(m-phenylenevinylene-co-2,5-dioctoxy-p-phenylenevinylene) and related materials

AU - Mellor, Helen

AU - Bleyer, Andreas

AU - Bradley, Donal D.C.

AU - Lane, Paul A.

AU - Martin, Simon J.

AU - Rohlfing, Frank

AU - Tajbakhsh, Ali

N1 - Generated from Scopus record by KAUST IRTS on 2019-11-27

PY - 1997/12/1

Y1 - 1997/12/1

N2 - We report experimental studies of poly(m-phenylenevinylene-co-2,5-dioctoxy-phenylenevinylene) (PmPV-co-DOctOPV). Model oligomers based on this polymer have been synthesised and results on these materials are also presented. Electroabsorption measurements have been performed on spin coated films between 1.5 eV and 5 eV with electric fields of up to 200 KV/cm. Using Stark shift analysis the electroabsorption spectra are compared with the first derivative of the corresponding low temperature absorption spectra. We also investigate the effect of changes in chemical structure by studying the variation between the electroabsorption spectra of related materials. Samples of these polymers and oligomers that differ by the proportion of trans and cis vinylene bonds are also compared to see what effect the trans or cis bond has on the electronic structure. Increased cis content enhances emission efficiency but little alters the electroabsorption spectra. The results for the different materials are compared and several features occurring at the onset and at the minima of the electroabsorption spectra are considered. These features do not depend on the trans/cis ratio and we present evidence that suggests aggregation effects play an important role in these samples.

AB - We report experimental studies of poly(m-phenylenevinylene-co-2,5-dioctoxy-phenylenevinylene) (PmPV-co-DOctOPV). Model oligomers based on this polymer have been synthesised and results on these materials are also presented. Electroabsorption measurements have been performed on spin coated films between 1.5 eV and 5 eV with electric fields of up to 200 KV/cm. Using Stark shift analysis the electroabsorption spectra are compared with the first derivative of the corresponding low temperature absorption spectra. We also investigate the effect of changes in chemical structure by studying the variation between the electroabsorption spectra of related materials. Samples of these polymers and oligomers that differ by the proportion of trans and cis vinylene bonds are also compared to see what effect the trans or cis bond has on the electronic structure. Increased cis content enhances emission efficiency but little alters the electroabsorption spectra. The results for the different materials are compared and several features occurring at the onset and at the minima of the electroabsorption spectra are considered. These features do not depend on the trans/cis ratio and we present evidence that suggests aggregation effects play an important role in these samples.

UR - http://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.279289

UR - http://www.scopus.com/inward/record.url?scp=0031288628&partnerID=8YFLogxK

U2 - 10.1117/12.279289

DO - 10.1117/12.279289

M3 - Conference contribution

BT - Proceedings of SPIE - The International Society for Optical Engineering

ER -

Electroabsorption spectroscopy of poly(m-phenylenevinylene-co-2,5-dioctoxy-p-phenylenevinylene) and related materials

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