苝酰亚胺衍生物的合成及光谱性能研究

以3,4:9,10-苝四酸二酐为原料,合成了两种新型的苝酰亚胺衍生物:N-(1-己基庚基)-N'-苯基-3,4:9,10-苝四酸二酰亚胺和N-(1-己基庚基)-N'-苯基-1,7-二(4-叔丁基苯氧基)-3,4:9,10-苝四酸二酰亚胺,其结构经¹H NMR和MS表征。用紫外可见吸收光谱和荧光光谱研究了它们的光学性质,研究结果表明苝核海湾区供电子基团的引入,使得苝核的最大吸收波长发生了明显的红移,Stokes位移达到了29 nm。     

苝四羧酸多联体化合物的合成及其光谱特性研究

本文合成了８个四羧酸多联体化合物;测定了这些化合物的吸收光谱、荧光光谱．研究了由供电子分子键连的多联体分子的光谱特性及其分子体系内稳态荧光猝灭机理．首次从吸收光谱和荧光光谱上分析和考察了四羧酸多联体化合物分子体系内的光致电子转移反应．     

聚苯砜对苯二甲酰胺/苝系荧光材料复合静电纺膜的制备与表征

聚苯砜对苯二甲酰胺(PSA)纤维在防护领域具有广泛的应用,笔者在其纺丝溶液中引入苝系荧光功能材料POSS-PDI-POSS,通过静电纺制备了PSA纤维膜。研究了助纺剂聚丙烯腈(PAN)、共溶剂氯仿、荧光功能材料的引入对PSA溶液流变、电导率和纺丝成形性能的影响,发现在PAN添加量为3%(w)、氯仿添加量为6%(w)和0.4%(w)的POSS-PDI-POSS时可制备纤维直径集中分布在250～600 nm的纤维膜,该纤维膜可发射550 nm的黄绿色荧光(490 nm光激发)和发射580 nm的红色荧光(530 nm光激发)。     

Energy Transfer in Nanotube‐Perylene Complexes

A functional surfactant designed to solubilize and individualize nanotubes efficiently in aqueous media and to form energy transfer complexes with the carbon nanotubes through π–π stacking is presented. Upon excitation of the adsorbed perylene unit an emission from the nanotubes is observed that indicates a successful excitation transfer. The efficiency of the indirect excitation via the adsorbant is of the same order of magnitude as the direct excitation of the nanotubes. Under optimized preparation conditions the pH independent perylene‐imido‐diester compound isolates and solubilizes carbon nanotubes in biocompatible aqueous environments without additional surfactants. The resulting solutions are stable over many months.     

苝醌类化合物总量的测定

用分光光度法测定了竹红菌、竹黄和菌寄生菌培养物中艹北 醌类化合物的总量 ;同时研究了以无水乙醇、丙酮和氯仿为溶剂提取 艹北 醌类化合物的相对效率 ,结果发现以丙酮为溶剂最合适。     

Synthesis of Polymer-Metal Complexes and Their Effects on Dielectric Properties and Ageing and UV Resistance of SBR Vulcanizates

Metal free and some metal-perylene polymers as well as some metal phthalocyanine polymers were incorporated into butadiene styrene rubber (SBR) compounds as coloring agents. Ageing and UV resistance of the vulcanizates obtained were studied in terms of the mechanical properties. The dielectric properties of the vulcanizates were also discussed. The results obtained revealed that cobalt perylene and cobalt phthalocyanine polymers showed superior performance in SBR vulcanizates against thermal ageing and UV radiation. The optimum concentration of cobalt phthalocyanine polymer was found to be 1 phr (parts per hundred parts of rubber).     

Triphenylamine-cored star-shape compounds as non-fullerene acceptor for high-efficiency organic solar cells: Tuning the optoelectronic properties by S/Se-annulated perylene diimide

Three novel star-shaped S/Se-annulated perylene diimide (PDI) small molecule acceptors with triphenylamine as the core, namely TPA-PDI, TPA-PDI-S and TPA-PDI-Se, were designed and synthesized. Using the wideband-gap polymer PDBT-T1 as the donor and Se-annulated perylene diimide (TPA-PDI-Se) as the acceptor, power conversion efficiencies (PCE) of up to 6.10% was achieved, which is 38% higher than the reference of TPA-PDI without heteroatom annulation. Impressively, the S/Se-annulated perylene diimides as acceptors showed high open-circuit voltage (V_OC) of 1.00 V. The high efficiency for TPA-PDI-Se can be attributed to complementary absorption spectra with the donor material, relatively high-lying LUMO level, balanced carrier transport and favorable morphologies. To the best of our knowledge, this PCE of 6.10% is among the highest values based on star-shaped non-fullerene acceptors so far.