Nonlinear optical and transport properties of fullerene crystals

Hugh J. Byrne, Andreas T. Werner, Wolfgang K. Maser, Mathias Kaiser, Lidia Akselrod, Wolfgang W. Rühle, S. Roth

Research output: Contribution to journalConference articlepeer-review

Abstract

Picosecond time resolved photoluminescence and photoconductivity measurements are performed to investigate the influence of high intensity illumination on the properties of Fullerene crystals. A highly nonlinear dependence of both the photoluminescence characteristics and the photoconductive response of the fullerenes is seen and temperature dependent measurements indicate that the nonlinear processes are associated with an insulator-metal phase transition in the material, and thus that the electronic properties of the excited state are dramatically altered at high excited state densities. Application of a simple phenomenological model to calculate the contribution of exchange and correlation energies supports the feasibility of such an interpretation. A further manifestation of this behaviour is the emergence of a broadband electroluminescent emission above a critical injection current density.

Original languageEnglish
Pages (from-to)160-168
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume2284
DOIs
Publication statusPublished - 28 Nov 1994
Externally publishedYes
EventFullerenes and Photonics 1994 - San Diego, United States
Duration: 24 Jul 199429 Jul 1994

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