Linewidth of the Exciton Absorption in Naphthalene Crystals
- 15 January 1964
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 40 (2), 551-554
- https://doi.org/10.1063/1.1725152
Abstract
The crystal spectrum of naphthalene near 3200 Å is studied in the temperature range 4° to 80°K. The intensity and half‐linewidth of the a band of the first purely electronic transition are found to be strongly dependent upon temperature and proportional to the density of phonons with energy of 14 cm—1. The b band shows very little temperature dependence. It is concluded from the line shape and linewidth of the a band that mobile excitons are possible in naphthalene.Keywords
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