Please use this identifier to cite or link to this item:
https://doi.org/10.1063/1.4734502
DC Field | Value | |
---|---|---|
dc.title | Polarization effects on energy-level alignment at the interfaces of polymer organic semiconductor films | |
dc.contributor.author | Zhao, L.-H. | |
dc.contributor.author | Png, R.-Q. | |
dc.contributor.author | Chiam, C.C.H. | |
dc.contributor.author | Guo, H. | |
dc.contributor.author | Zhuo, J.-M. | |
dc.contributor.author | Chua, L.-L. | |
dc.contributor.author | Wee, A.T.S. | |
dc.contributor.author | Ho, P.K.H. | |
dc.date.accessioned | 2014-10-16T08:37:18Z | |
dc.date.available | 2014-10-16T08:37:18Z | |
dc.date.issued | 2012-07-30 | |
dc.identifier.citation | Zhao, L.-H., Png, R.-Q., Chiam, C.C.H., Guo, H., Zhuo, J.-M., Chua, L.-L., Wee, A.T.S., Ho, P.K.H. (2012-07-30). Polarization effects on energy-level alignment at the interfaces of polymer organic semiconductor films. Applied Physics Letters 101 (5) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4734502 | |
dc.identifier.issn | 00036951 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/94545 | |
dc.description.abstract | The thickness-dependent evolutions of the Fermi level E F and ionization potential I p of ultrathin films of regioregular poly(3-hexylthiophene) and poly[2,5-bis(3-tetradecylthiophene-2-yl)thieno[3,2-b] thiophene], deposited as edge-on π-stacked lamellae on gold and on p-doped poly(3,4-ethylenedioxythiophene) electrodes, have been measured by ultraviolet photoemission spectroscopy. The I p increases by 0.3 eV on going from a monolayer film to a few-nanometer-thick film. Correspondingly, the E F pinning depth increases from 0.2 eV to 0.5 eV. This valence band bending which occurs for a constant vacuum level can be quantitatively modeled by microelectrostatic self-consistent polarization field calculations that incorporate both substrate and organic semiconductor film effects. The E F pinning to the first monolayer is relatively shallow. © 2012 American Institute of Physics. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1063/1.4734502 | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | PHYSICS | |
dc.contributor.department | CHEMISTRY | |
dc.description.doi | 10.1063/1.4734502 | |
dc.description.sourcetitle | Applied Physics Letters | |
dc.description.volume | 101 | |
dc.description.issue | 5 | |
dc.description.page | - | |
dc.description.coden | APPLA | |
dc.identifier.isiut | 000307676600083 | |
Appears in Collections: | Staff Publications |
Show simple item record
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.