✦ LIBER ✦

On the modification of the optical properties of the TCNQ ion-radical salts by mechanical grinding

✍ Scribed by G.C. Papavassiliou; V.M. Yartsev

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 551 KB
Volume: 200
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(92)87070-6

No coin nor oath required. For personal study only.

✦ Synopsis

Absorption spectra of small K-TCNQ particles are interpreted in terms of the Hubbard model for a lincar cluster of four molecules with four electrons. The shift of the electronic excitation band to higher frequency veraus decrease of particle size is attributed to the growth of the on-site Coulomb repulsion energy due to less effective screening.

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