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Electronic Structure of Single Crystal α-Perylene



Sujitra J. Pookpanratana, Katelyn Goetz, Ruslan Ovsyannikov, Erika Giangrisostomi, Emily G. Bittle, Oana Jurchescu, Steven W. Robey, Christina A. Hacker


In organic electronics, the highest estimated charge mobility in a device is typically achieved when the organic semiconductor is a single crystal. However, the measurement of the electronic and chemical structure of organic single crystals by photoemission lags far behind of the thin- film counterpart. The measurement challenge is due to two reasons: the insulating nature of the crystal surface and relatively small size of the crystals (millimeter to a few hundred micrometers). X-ray and ultraviolet-based photoemission measurements are achievable on single crystal α-perylene with measurement assistance from a blue light emitting laser to enhance photoconductivity of the crystal surface. We are able to clearly resolve multiple highest molecular orbitals and determine the ionization energy of α-perylene. We are able to obtain high-resolution C 1s spectrum which we can clearly distinguish contribution from carbon atoms in the two inequivalent sites and shake-up satellite features. Electronic ``band'' structure measurements of α-perylene are realized using a novel angle-resolved time-of-flight electron spectrometer and the complete α-perylene electronic structure and impact on electrical performance will be discussed.
Proceedings Title
Bulletin of the American Physical Society
Conference Dates
March 13-17, 2017
Conference Location
New Orleans, LA
Conference Title
American Physical Society March Meeting 2017


Pookpanratana, S. , Goetz, K. , Ovsyannikov, R. , Giangrisostomi, E. , Bittle, E. , Jurchescu, O. , Robey, S. and Hacker, C. (2017), Electronic Structure of Single Crystal α-Perylene, Bulletin of the American Physical Society, New Orleans, LA (Accessed February 28, 2024)
Created March 16, 2017, Updated September 15, 2017