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化学学报 2005

有机金属聚合物/多酸纳米杂化LB膜的制备与光电性质研究

, PP. 2194-2198

柳利,张刚昇,柳士忠,艾伟河,张春梅,杜祖亮,黄维扬

Keywords: 多金属氧酸盐,有机金属聚合物,LB膜,制备,光电性质

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Abstract:

以含有共轭大π键的有机金属聚合物(OMP)作有机组分,以Keggin结构和Dawson结构钨(钼)磷杂多酸作无机组分,以十八胺为辅助成膜剂,用LB技术制备了3种新型有机金属聚合物/十八铵/杂多阴离子OMP/ODA/HPA(HPA=PMo12,PW12,PMo18)杂化LB膜.用π-A曲线、UV-vis吸收光谱、荧光光谱、原子力显微镜(AFM)、扫描隧道显微镜(STM)和表面光电压谱(SPS)对标题LB膜的成膜性能及光电性质进行了研究,结果表明标题杂化LB膜的崩溃压为26.8mN/m,在可见光区有较强的光电压响应,并有好的发光性质.当电压为±8.0V时,隧道电流是-0.1~-2.3nA.

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