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Effect of Chemical Doping and Ion Implantation on Cond uctivity of Poly(p-phenylene vinylene) Derivatives 被引量:1
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作者 LI Bao-ming WU Hong-cai LIU Xiao-zeng LI Xiao-qi GAO Chao 《Semiconductor Photonics and Technology》 CAS 2005年第3期188-191,共4页
The surface conductivity of poly [ 2-methoxy-5-(3'-methyl) butoxy]-p-phenylene vinylene (PMOMBOPV) films doped with FeCl3 and H2SO4 by chemical method and implanted by N^+ ions was studied and the comparison of ... The surface conductivity of poly [ 2-methoxy-5-(3'-methyl) butoxy]-p-phenylene vinylene (PMOMBOPV) films doped with FeCl3 and H2SO4 by chemical method and implanted by N^+ ions was studied and the comparison of environmental stability of conductive behavior was also investigated. The energy and dose of N^+ ions were in the rang 15~35 keV and 3. 8×10^15~9. 6×10^16 ions/cm^2, respectively. The conductivity of PMOMBOPV film was enhanced remarkably with the increases of the energy and dose of N^+ ions. For example, the conductivity of PMOMBOPV film was 3. 2×10^-2S/cm when ion implantation was performed with an energy of 35 keV at a dose of 9. 6 × 10^14 ions/cm^2 , which was almost seven orders of magnitude higher than that of film unimplanted. The environmental stability of conductive behavior for ionimplanted film was much better than that of chemical doped films. Moreover, the conductive activation energy of ion-implanted films was measured to be about 0.17 eV. 展开更多
关键词 Ion implantation Chemical doping poly[2-methoxy-5-(3'-methyl)butoxy]-p-phenylene vinylene Surface conductivity Conductive activation energy
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Investigation of Intrachain Exciton Diffusion of MEH-PPV in Solution with Different Polarity
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作者 Xue-cong Li Qi-lin Yuan +1 位作者 Fang Zhang Han-zhuang Zhang 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2019年第2期273-276,I0003,共5页
Femtosecond time-resolved transient grating technique was adopted to insight into the intra-chain exciton diffusion of MEH-PPV in solution with different polarity. Broadband white-light continuum was introduced as the... Femtosecond time-resolved transient grating technique was adopted to insight into the intra-chain exciton diffusion of MEH-PPV in solution with different polarity. Broadband white-light continuum was introduced as the probe to observe the transient absorption and the femtosecond time-resolved transient grating information simultaneously. The vibrational dephasing behaviors, single exciton relaxation, and population relaxation dynamics of MEH-PPV were systematically investigated. The result shows that the relaxation processes of the sample solution will be accelerated in the solvent with larger polarity. 展开更多
关键词 Transient grating Exciton diffusion poly[2-methoxy-5-(2'-ethylhexoxy)]-1 4-phenylene vinylene
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