Photoemission of Holes from Metals into the Organic Polymer Poly-N-Vinyl-Carbazole
- 11 November 1968
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 21 (20), 1444-1447
- https://doi.org/10.1103/physrevlett.21.1444
Abstract
Photoemission of holes from various metals into the organic polymer poly-N-vinyl-carbazole has been observed. The photoemission threshold was measured to be 1.28 eV for Au, 1.48 eV for Cu, and 1.53 eV for Al. The position of the valence-band edge relative to the vacuum level is calculated to be 6.1 ± 0.4 eV. A periodic fine structure in the spectral dependence of the quantum yield is attributed to the splitting of the electronic energy levels by molecular vibrations.Keywords
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