What do nonlinear optical spectroscopy and picosecond photinduced absorption have to say about excited states in conjugated polymers?

M. Chandross, Sumitendra Mazumdar

Research output: Contribution to journalArticle

Abstract

We present a self-consistent picture of the excited state energy spectrum of poly(para-phenylene vinylene) based on theoretical calculations of exicted states and and experimental electroabsorption (EA) and picosecond photoinduced absorption measurements (PA). Our calculations place the one electron-one hole continuum (nBu) at 0.9 ± 0.2 eV above the 1Bu exciton. This is in agreement with EA and ps PA in the i.r., which finds an even-parity exciton (the mAg) about 0.7 eV away from the 1Bu. The high energy ps PA at 1.5 - 1.7 eV is to a biexciton whose energy is consistent with our estimates.

Original languageEnglish (US)
Pages (from-to)1095-1096
Number of pages2
JournalSynthetic Metals
Volume85
Issue number1-3
StatePublished - Mar 15 1997

Fingerprint

Conjugated polymers
Excited states
Excitons
polymers
excitons
spectroscopy
excitation
parity
energy spectra
continuums
energy
Electrons
estimates
Optical spectroscopy
electrons
LDS 751

Keywords

  • Multiphoton absorption spectroscopy
  • Poly(phenylene vinylene) and derivatives
  • Semi-empirical models and model calculations

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

Cite this

What do nonlinear optical spectroscopy and picosecond photinduced absorption have to say about excited states in conjugated polymers? / Chandross, M.; Mazumdar, Sumitendra.

In: Synthetic Metals, Vol. 85, No. 1-3, 15.03.1997, p. 1095-1096.

Research output: Contribution to journalArticle

@article{1f7aea4728864cb5952401bed480067a,
title = "What do nonlinear optical spectroscopy and picosecond photinduced absorption have to say about excited states in conjugated polymers?",
abstract = "We present a self-consistent picture of the excited state energy spectrum of poly(para-phenylene vinylene) based on theoretical calculations of exicted states and and experimental electroabsorption (EA) and picosecond photoinduced absorption measurements (PA). Our calculations place the one electron-one hole continuum (nBu) at 0.9 ± 0.2 eV above the 1Bu exciton. This is in agreement with EA and ps PA in the i.r., which finds an even-parity exciton (the mAg) about 0.7 eV away from the 1Bu. The high energy ps PA at 1.5 - 1.7 eV is to a biexciton whose energy is consistent with our estimates.",
keywords = "Multiphoton absorption spectroscopy, Poly(phenylene vinylene) and derivatives, Semi-empirical models and model calculations",
author = "M. Chandross and Sumitendra Mazumdar",
year = "1997",
month = "3",
day = "15",
language = "English (US)",
volume = "85",
pages = "1095--1096",
journal = "Synthetic Metals",
issn = "0379-6779",
publisher = "Elsevier BV",
number = "1-3",

}

TY - JOUR

T1 - What do nonlinear optical spectroscopy and picosecond photinduced absorption have to say about excited states in conjugated polymers?

AU - Chandross, M.

AU - Mazumdar, Sumitendra

PY - 1997/3/15

Y1 - 1997/3/15

N2 - We present a self-consistent picture of the excited state energy spectrum of poly(para-phenylene vinylene) based on theoretical calculations of exicted states and and experimental electroabsorption (EA) and picosecond photoinduced absorption measurements (PA). Our calculations place the one electron-one hole continuum (nBu) at 0.9 ± 0.2 eV above the 1Bu exciton. This is in agreement with EA and ps PA in the i.r., which finds an even-parity exciton (the mAg) about 0.7 eV away from the 1Bu. The high energy ps PA at 1.5 - 1.7 eV is to a biexciton whose energy is consistent with our estimates.

AB - We present a self-consistent picture of the excited state energy spectrum of poly(para-phenylene vinylene) based on theoretical calculations of exicted states and and experimental electroabsorption (EA) and picosecond photoinduced absorption measurements (PA). Our calculations place the one electron-one hole continuum (nBu) at 0.9 ± 0.2 eV above the 1Bu exciton. This is in agreement with EA and ps PA in the i.r., which finds an even-parity exciton (the mAg) about 0.7 eV away from the 1Bu. The high energy ps PA at 1.5 - 1.7 eV is to a biexciton whose energy is consistent with our estimates.

KW - Multiphoton absorption spectroscopy

KW - Poly(phenylene vinylene) and derivatives

KW - Semi-empirical models and model calculations

UR - http://www.scopus.com/inward/record.url?scp=0031069604&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031069604&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0031069604

VL - 85

SP - 1095

EP - 1096

JO - Synthetic Metals

JF - Synthetic Metals

SN - 0379-6779

IS - 1-3

ER -