Enhanced photoluminescence from self-organized rubrene single crystal surface structures
Thu, 2011-02-17 16:24 - Daniel Rudolph
Date:
2010-06-07
Reference:
Appl. Phys. Lett. 96, 231902 (2010)
We report on crystalline pyramidal structures grown via self-organization on the rubrene (001) surface. The analysis of their spectral response by means of photoluminescence with micrometer lateral resolution reveals an intensity enhancement on-top of the surface structures. As we demonstrate this intensity increase can be related to the excitation processes at the molecular level in combination with exciton confinement within the pyramids.
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