Work

Optical Bandgaps of π‐Conjugated Organic Materials at the Polymer Limit: Experiment and Theory

Year: 2007

Type: article

Abstract: In this Review, the extreme care that must be taken when predicting the optical properties of conjugated polymers via the oligomer approach, and when comparing theoretical and experimental data, is illustrated. In the first part, conceptual strategies for the correct determination of optical transitions from experimental spectra and relevant extrapolation procedures at the polymer limit are introduced. The impact of conformational, substitution, solvent, and solid‐state effects on the optical properties is discussed in light of experimental data reported for molecular backbones based on phenylene, phenylenevinylene, and thiophene repeat units. A comparison is then made between experimental results and those provided by standard quantum‐chemical methods, to assess their reliability.

Source: Advanced Materials

DOI: 10.1002/adma.200600277

Authors: J. Gierschner, J. Cornil, H.‐J. Egelhaaf

Institutions: University of Mons, University of Tübingen

Language: English

Topic: Organic Electronics and Photovoltaics

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: Georgia Institute of Technology, Australian Government, Fonds De La Recherche Scientifique - FNRS, University of California, Santa Barbara

OpenAlex ID: W1992667450