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| Modification of poly(pyrrolyl methine) thin film by low energy ion implantation |
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| 西安交通大学 |
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Cite this article:
;. Modification of poly(pyrrolyl methine) thin film by low energy ion implantation. Chin J Mater Res, 2004, 18(4): 419-423.
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Abstract Investigation of optical and electrical properties of
poly[(3--acetylpyrrole--2,5--diyl)p--(N,N--dimethylamino)benzylidenequinomethane]]
(Papdmabeq) thin film implanted by low energy ion was carried out.
The influence of ion implantation on the parameters that were related to the
third--order nonlinear optical susceptibility was especially studied
(energy of nitrogen ion 10$\sim$35 keV, while the dose
1.2$\times$10$^{16}\sim$2.2$\times$10$^{17}$ ions/cm$^{2}$).
The results show that the conjugated chain of the polymer increases when ion
implantation is performed, its film surface conductivity is 5 order of magnitude
higher than that of the intrinsic sample when the dose is about
2.2$\times$10$^{17}$ions/cm$^{2}$ and energy 25 keV, and when the dose is
about 2.2$\times$10$^{17}$ions/cm$^{2}$ and energy 35 keV, its optical band gap
is 1.340 eV, less than that of the intrinsic sample (1.626 eV).
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Received: 01 September 2004
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