Can I read Toward a Rational Design of Poly(2,7-Carbazole) Derivatives for Solar Cells on EtoBox?

Toward a Rational Design of Poly(2,7-Carbazole) Derivatives for Solar Cells by Nicolas Blouin; Alexandre Michaud; David Gendron; Salem Wakim; Emily Blair; Rodica Neagu-Plesu; Michel Belletête; Gilles Durocher; Ye Tao; Mario Leclerc is a Chemistry article available to read on EtoBox.

What is Toward a Rational Design of Poly(2,7-Carbazole) Derivatives for Solar Cells about?

On the basis of theoretical models and calculations, several alternating polymeric structures have been investigated to develop optimized poly(2,7-carbazole) derivatives for solar cell applications. Selected low band gap alternating copolymers have been obtained via a Suzuki coupling reaction. A good correlation between DFT theoretical calculations performed on model compounds and the experimental HOMO, LUMO, and band gap energies of the corresponding polymers has been obtained. This study reveals that the alternating copolymer HOMO energy level is mainly fixed by the carbazole moiety, whereas the LUMO energy level is mainly related to the nature of the electron-withdrawing comonomer. However, solar cell performances are not solely driven by the energy levels of the materials. Clearly, the molecular weight and the overall organization of the polymers are other important key parameters to consider when developing new polymers for solar cells. Preliminary measurements have revealed hole mobilities of about 1 × 10 -3 cm 2 ‚V -1 ‚s -1 and a power conversion efficiency (PCE) up to 3.6%. Further improvements are anticipated through a rational design of new symmetric low band gap poly(2,7

Who reads Toward a Rational Design of Poly(2,7-Carbazole) Derivatives for Solar Cells?

Author

Nicolas Blouin; Alexandre Michaud; David Gendron; Salem Wakim; Emily Blair; Rodica Neagu-Plesu; Michel Belletête; Gilles Durocher; Ye Tao; Mario Leclerc

Publisher

American Chemical Society (ACS)

Published

2007

Language

EN

Field

Chemistry (Physical Sciences)