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Ballistic Electron Transport Through Organic Semiconductors: Ballistic Electron Emission Microscopy / Spectroscopy on Metal-organic-semiconductor Heterostuctures
Soner Özcan
Ballistic Electron Transport Through Organic Semiconductors: Ballistic Electron Emission Microscopy / Spectroscopy on Metal-organic-semiconductor Heterostuctures
Soner Özcan
In the framework of this thesis Ballistic Electron Emission Microscopy/ Spectroscopy (BEEM/S) was used to investigate semiconductor heterostructures. Including organic semiconductors like titanylphthalocyanine (TiOPc) and hexa-peri hexabenzocoronene (HBC). Analyzing the BEEM spectra we find that the TiOPc increases the BEEM threshold voltage compared to reference Au/GaAs diodes. The energy dependent electron transmission properties of TiOPc were investigated too. Additionally, an approach for the determination of the attenuation length of TiOPc as a function of energy has been successfully introduced. Finally, the Schottky barrier heights of Au/HBC/GaAs heterostructures were investigated by BEEM. The high barrier at the HBC-GaAs interface makes this material a promising interfacial layer for increasing the open circuit voltage of GaAs Schottky barrier solar cells.
Media | Books Paperback Book (Book with soft cover and glued back) |
Released | October 23, 2008 |
ISBN13 | 9783838100326 |
Publishers | Suedwestdeutscher Verlag fuer Hochschuls |
Pages | 132 |
Dimensions | 152 × 229 × 7 mm · 185 g |
Language | English German |
See all of Soner Özcan ( e.g. Paperback Book )