The oligo phenylene vinylene(oligo PV)/SiO 2 composite film was prepared by the sol gel process. The surface photovoltage spectroscopy(SPS) and electric field induced surface photovoltage spectroscopy(EFISPS) had been...The oligo phenylene vinylene(oligo PV)/SiO 2 composite film was prepared by the sol gel process. The surface photovoltage spectroscopy(SPS) and electric field induced surface photovoltage spectroscopy(EFISPS) had been used to investigate the charge transport process in olige PV/SiO 2 heterostructured composite. The results show that the oligo PV / SiO 2 composite film not only can improve the stability of oligo PV, but also have some photoelectric activity.展开更多
通过Gilch反应合成了结构新颖、含四官能团单元的超支化PPV聚合物P1～P3.聚合物的结构得到1 H NMR和元素分析结果的确证.通过热重分析(TGA)得知,该类非结晶相的聚合物热分解温度较高,分别为371.7、386.6和391.8℃.所合成的聚合物固态时...通过Gilch反应合成了结构新颖、含四官能团单元的超支化PPV聚合物P1～P3.聚合物的结构得到1 H NMR和元素分析结果的确证.通过热重分析(TGA)得知,该类非结晶相的聚合物热分解温度较高,分别为371.7、386.6和391.8℃.所合成的聚合物固态时的紫外吸收及荧光发射相对于液态的紫外吸收及荧光发射,波长有明显的红移现象,并且该聚合物具有宽吸收、窄发射的特征,在电致发光器件和聚合物太阳能电池器件中将有潜在的应用前景.展开更多
A new water-soluble poly(p-phenylene vinylene-co-methacrylic acid) copolymer was synthesized based on the introducing non-conjugated water-soluble group to conjugated backbone, which was different from previous works ...A new water-soluble poly(p-phenylene vinylene-co-methacrylic acid) copolymer was synthesized based on the introducing non-conjugated water-soluble group to conjugated backbone, which was different from previous works by functionalizing the fully conjugated group side chains to obtain water-solubility. The synthesized copolymer exhibits efficient blue emission.展开更多
基金supported by the National Natural Science Foundation of China(20674021)the Specialized Research Fund for the Doctoral Program of Higher Education,China(20090172120012)~~
文摘The oligo phenylene vinylene(oligo PV)/SiO 2 composite film was prepared by the sol gel process. The surface photovoltage spectroscopy(SPS) and electric field induced surface photovoltage spectroscopy(EFISPS) had been used to investigate the charge transport process in olige PV/SiO 2 heterostructured composite. The results show that the oligo PV / SiO 2 composite film not only can improve the stability of oligo PV, but also have some photoelectric activity.
文摘通过Gilch反应合成了结构新颖、含四官能团单元的超支化PPV聚合物P1～P3.聚合物的结构得到1 H NMR和元素分析结果的确证.通过热重分析(TGA)得知,该类非结晶相的聚合物热分解温度较高,分别为371.7、386.6和391.8℃.所合成的聚合物固态时的紫外吸收及荧光发射相对于液态的紫外吸收及荧光发射,波长有明显的红移现象,并且该聚合物具有宽吸收、窄发射的特征,在电致发光器件和聚合物太阳能电池器件中将有潜在的应用前景.
文摘A new water-soluble poly(p-phenylene vinylene-co-methacrylic acid) copolymer was synthesized based on the introducing non-conjugated water-soluble group to conjugated backbone, which was different from previous works by functionalizing the fully conjugated group side chains to obtain water-solubility. The synthesized copolymer exhibits efficient blue emission.
