Database

Creator

Date

Thumbnail

# Search results

15 records were found.

## Elucidation of the electronic structure of semiconducting single-walled carbon nanotubes by electroabsorption spectroscopy

Comment: 3 figures, 2 tables

## Designing emissive conjugated polymers with small optical gaps: a step towards organic polymeric infrared lasers

Comment: 5 pages, RevTex, to appear in Phys. Rev. Letters

## Electron-electron interaction effects on optical excitations in semiconducting single-walled carbon nanotubes

Comment: 5 pages, 3 figures, To appear in PRL

## Is there a common theme behind the correlated-electron superconductivity in organic charge-transfer solids, cobaltates, spinels and fullerides?

Comment: 5 pages 1 figure

## pi-Electron theory of transverse optical excitons in semiconducting single-walled carbon nanotubes

Comment: 5 pages, 3 figures. to appear in Physical Review B

## Essential optical states in $\pi$-conjugated polymer thin films

We develop a theory of the electronic structure and photophysics of interacting chains of $\pi$-conjugated polymers to understand the differences between solutions and films. While photoexcitation generates only the exciton in solutions, the optical exciton as well as weakly allowed excimers are generated in films. Photoinduced absorption in films is primarily from the lowest excimer. We are also able to explain peculiarities associated with photoluminescence, including delayed photoluminescence and its quenching by electric field.

## Photophysics of charge-transfer excitons in thin films of \pi-conjugated polymers

Comment: 10 pages,4 figures, submitted to Phys Rev B

## Universality in the Photophysics of pi-Conjugated Polymers and Single-Walled Carbon Nanotubes

We describe both pi-conjugated polymers and semiconducting single-walled carbon nanotubes because of the remarkable similarities in their behavior under photoexcitation. The common themes between these two seemingly different classes of materials are pi-conjugation, quasi one-dimensionality, and strong Coulomb interactions. Theoretical understanding of both systems requires going beyond traditional band theory. We present our current understanding of the electronic structures and excited state absorptions in both systems within a common theoretical model. Our aim is to give physical interpretations of experiments that have been performed and to give guidance to future experimental work.

## Triplet excitations in carbon nanostructures

Comment: 9 pages, 2 tables, 4 figures

## Similarities in electronic properties of organic charge-transfer solids and layered cobaltates

Comment: 4 pages and 2 figs