基于手性聚噻吩嵌段共聚物的圆偏振光探测器

手性有机半导体由于具有光谱可调和易于加工的优点，在小型化和集成化的圆偏振光检测中具有广泛的应用前景。本文通过控制手性异腈(PPI)的加入合成了聚(3-己基噻吩-嵌段-聚(苯基异氰))(P3HT₈₀和P3HT₈₀-PPI(L)₃₀)。实验结果证明了两种半导体聚合物被成功合成。测试了两种半导体聚合物的光学特性，发现嵌段聚合物P3HT₈₀-PPI(L)₃₀具有手性光学活性。制备了基于有机场效应晶体管的圆偏振光探测器，研究器件对于450 nm的圆偏振光旋向的区分性能。实验结果表明，手性异腈(PPI)的加入虽然降低了P3HT₈₀的电学性能，但引入了手性光学活性，使基于P3HT₈₀-PPI(L)₃₀制备的器件能够区分圆偏振光的旋向，并且在450 nm的光电流不对称因子g_res达到了0.083。     

有机半导体材料制造柔性LED

康奈尔大学的研究者发明了一种具有电致发光性能的新型有机半导体器件，可以作为光电池，制作在纸张和布料上用作显示器件，或制作出发光的体恤衫，或者制成太阳能沙滩伞为便携电视供电。以前就有科学家预测“离子结（ionic junction）”可以提高性能，这是第一次真正应用。由于有机半导体可以做得很薄，可以做在布料和纸张上作显示器。     

Fabrication of Alq3／PBD OMQW Structures and Its Photoluminescence Characteristics

Organic multiple quantum well(OMQW)structures consisting of alternating layers of tris(8-quinolinolato)aluminum(Ⅲ）（Alq3)an 2-(4-biphenylyl)-5-(4-ter-butylphenyl)-(1,3,3-oxadiazole)(PBD)have been fabricated by organic molecular beam deposition(OMBD).The individual layer thickness in the multilayer samples was varied from 6 nm tp 20nm.The multiple quantum well structures were determined by low angle X-ray diffraction,optical absorption and photoluminescence(PL).The PL spectra narrow and the emission energy has been observed to shift to higher energy compared with that in the monolayer structure,suggesting a quantum size effect.     

聚乙炔的结构、合成与应用研究进展

有机半导体材料制备工艺简单,可实现大面积、柔性器件,且材料品种较多,成为目前研究的一个热点。聚乙炔是研究最早的一种有机半导体材料,介绍了聚乙炔的结构,综述了聚乙炔的合成与应用研究进展。     

科学家有望开发出低成本性能卓越的有机太阳能电池

<正>据海外媒体报道,美国罗格斯大学研究人员发现,激子在有机半导体晶体红荧烯中的扩散距离是以前认为的1 000多倍,该距离与激子在制备无机太阳能电池的硅、砷化镓等材料中的距离相媲美。新     

十六氯酞菁锌有机半导体材料的合成及其气敏性研究

Due to the difficulty in synthesizing perhalogenated metallophthalocyanine, the method of ammonium molybdate solid phase catalysis was introduced, and by using tetrachlorophthalic anhydride and urea as the raw materials, hexadecachloro zinc phthalocyanine （ZnPcCl16） was synthesized. Components of the composite were analyzed by energy spectrum, and its functional group structures and absorption peaks were characterized by IR and UV-vis spectroscopy. The thin films of gas sensors were prepared in a vacuum evaporation system and evaporated onto SiO2 substrates, where sensing electrodes were made by MEMS micromachining. The optimal conditions for the films are： substrate temperature of 150 ℃ evaporation current of 95 A and film thickness of 50 nm. The result showed that the sensors were ideally sensitive to Cl2 gas and could detect the minimum concentration of 0.3 ppm.