Prosiectau fesul blwyddyn
Crynodeb
The transport and optical band gaps for the organic semiconductor tin (II) phthalocyanine (SnPc) and the complete energy band profiles have been determined for organic-inorganic interfaces between SnPc and III-V semiconductors. High throughput measurement of interface energetics over timescales comparable to the growth rates was enabled using in situ and real-time photoelectron spectroscopy combined with Organic Molecular Beam Deposition. Energy band alignment at SnPc interfaces with GaAs, GaP, and InP yields interface dipoles varying from -0.08 (GaP) to -0.83 eV (GaAs). Optical and transport gaps for SnPc and CuPc were determined from photoelectron spectroscopy and from optical absorption using spectroscopic ellipsometry to complete the energy band profiles. For SnPc, the difference in energy between the optical and transport gaps indicates an exciton binding energy of (0.6 +- 0.3) eV.
Iaith wreiddiol | Saesneg |
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Rhif yr erthygl | 123701 |
Nifer y tudalennau | 8 |
Cyfnodolyn | Journal of Applied Physics |
Cyfrol | 114 |
Rhif cyhoeddi | 12 |
Dyddiad ar-lein cynnar | 26 Medi 2013 |
Dynodwyr Gwrthrych Digidol (DOIs) | |
Statws | Cyhoeddwyd - 01 Hyd 2013 |
Ôl bys
Gweld gwybodaeth am bynciau ymchwil 'Transport and optical gaps and energy band alignment at organic-inorganic interfaces'. Gyda’i gilydd, maen nhw’n ffurfio ôl bys unigryw.Prosiectau
- 1 Wedi Gorffen
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Photoelectron Spectroscopy and Microscopy using Synchrotron Radiation for Exploiting Diamond surfaces and Interfaces
Evans, A. (Prif Ymchwilydd)
Engineering & Physical Sciences Research Council
01 Hyd 2009 → 30 Medi 2013
Prosiect: Ymchwil a ariannwyd yn allanol