TY  - JOUR
A1  - Rychkov, Dmitry
A1  - Gerhard, Reimund
T1  - Stabilization of positive charge on polytetrafluoroethylene electret films treated with titanium-tetrachloride vapor
T2  - Applied physics letters
N2  - The surface of polytetrafluoroethylene films was treated with titanium-tetrachloride vapor. The treatment was carried out in a flow reactor by means of molecular-layer deposition, a method from the arsenal of chemical nanotechnology. X-ray photoelectron spectroscopy reveals that such a treatment results in considerable changes in the chemical composition at and near the surface of the fluoropolymer film. Both, defluorination and oxidation of the surface were observed. At the same time, samples treated with titanium tetrachloride show a significant enhancement in the thermal stability of the positive homocharge. The thermally stimulated surface-potential-decay curves were observed to shift to higher temperatures by more than 100 degrees C.
Y1  - 2011
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/36953
SN  - 0003-6951
VL  - 98
IS  - 12
PB  - American Institute of Physics
CY  - Melville
ER  -