TY  - JOUR
A1  - Lange, Ilja
A1  - Blakesley, James C.
A1  - Frisch, Johannes
A1  - Vollmer, Antje
A1  - Koch, Norbert
A1  - Neher, Dieter
T1  - Band bending in conjugated polymer layers
T2  - Physical review letters
N2  - We use the Kelvin probe method to study the energy-level alignment of four conjugated polymers deposited on various electrodes. Band bending is observed in all polymers when the substrate work function exceeds critical values. Through modeling, we show that the band bending is explained by charge transfer from the electrodes into a small density of states that extends several hundred meV into the band gap. The energetic spread of these states is correlated with charge-carrier mobilities, suggesting that the same states also govern charge transport in the bulk of these polymers.
Y1  - 2011
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/36844
SN  - 0031-9007
VL  - 106
IS  - 21
PB  - American Physical Society
CY  - College Park
ER  -