【摘要】 采用还原β-萘基锂与蒽醌的加成物制备了有机电致蓝光材料9,10-二(β-萘基)蒽(ADN)。通过红外、核磁共振对其结构进行了表征。利用紫外可见吸收光谱、循环伏安法和荧光光谱等研究了其HOMO、LUMO能级及发光性能。紫外可见吸收光谱有2个吸收带,其中E带有2个吸收峰,波长分别为232nm、260nm;B带有3个吸收峰,其波长分别为359nm、377nm、398nm,ADN的吸收带边为420nm,计算其能级差为2.95eV。采用398nm的激发光激发,荧光发射峰值波长为426nm,半峰宽为56nm,有很好的蓝光色纯度。通过循环伏安法测得其氧化峰电位为1.28 V,推算出ADN的HOMO能级为5.60 eV,LUMO能级为2.65 eV。更多还原

【Abstract】 9,10-Di(β-naphthyl)anthracene was synthesized by reducing the addition product ofβ-naphthyl- lithium with anthraquinone.Its structure was determined by FTIR and ~1H NMR.Its HOMO,LUMO and luminescence characteristics were studied by UV-Vis absorption spectra,cyclic voltammetry method and fluorescence spectra.In the UV-Vis absorption spectra of ADN,there are two absorption bands,two absorption peaks at 232 nm,260 nm in E band,three peaks at 359 nm,377 nm,398 nm in B band.By the edge of UV absorption 420 nm,we can calculate energy gap of ADN is 2.95 eV. When excited by 398 nm photos,ADN emits blue fluorescence peaked at 426 nm and a full width at half-maximum of 56 nm,showing a very good blue purity.By cyclic voltammetry and the energy gap we can calculate the HOMO energy and LUMO energy of ADN are 5.60 eV and 2.65 eV,respectively.更多还原