苝四羧酸铈在TiO2纳米晶膜上的光电转化性质

报道了Ce³⁺和Ce⁴⁺两种金属离子桥联苝四羧酸在二氧化钛纳米晶电极上自组装膜的制备,并利用紫外可见光谱、红外光谱、光电子能谱等手段对自组装膜进行了表征.通过同步辐射光电子能谱确定了自组装膜的HOMO能级.基于自组装膜敏化二氧化钛纳米晶电极的薄层三明治型太阳能电池具有较好的光电转化性质.在480 nm,苝四羧酸敏化二氧化钛电极产生了26.9%的入射单色光子-电子转化效率(IPCE),而由Ce⁴⁺离子或Ce³⁺离子桥联所形成的自组装膜分别产生了55.8%和39.1%的IPCE.金属离子桥联苝四羧酸自组装膜相当于一种配合物,其HOMO能级比苝四羧酸自组装膜的高,这是形成铈离子桥联苝四羧酸后IPCE提高的一个主要原因.     

苝四羧酸铈在TiO_2纳米晶膜上的光电转化性质

报道了Ce3+和Ce4+两种金属离子桥联苝四羧酸在二氧化钛纳米晶电极上自组装膜的制备,并利用紫外可见光谱、红外光谱、光电子能谱等手段对自组装膜进行了表征. 通过同步辐射光电子能谱确定了自组装膜的HOMO能级. 基于自组装膜敏化二氧化钛纳米晶电极的薄层三明治型太阳能电池具有较好的光电转化性质. 在480 nm, 苝四羧酸敏化二氧化钛电极产生了26.9%的入射单色光子-电子转化效率(IPCE), 而由Ce4+离子或Ce3+离子桥联所形成的自组装膜分别产生了55.8%和39.1%的IPCE. 金属离子桥联苝四羧酸自组装膜相当于一种配合物, 其HOMO能级比苝四羧酸自组装膜的高, 这是形成铈离子桥联苝四羧酸后IPCE提高的一个主要原因.     

Self—assembly and photoelectric properties of cerium compleses with 3,4,9,10—perylenetetracarboxylic acid on nanocrystalline TiO2 films

Self-assembled(SA)films (PMP,M=Ce^3 or Ce^4 )of 3,4,9,10-perylenetetracarboxylic acid(PTA)on nanocrystalline TiO2 films with Ce^3 or Ce^4 as a bridge were fabricated and characterized with UV-Vis,IR,and XPS synchrotron radiation photoelectron spectroscopy (SRPES) which gave the HOMO energy levels for the SA films.It was shown that thin-layer sndwich-type solar cells based on these SA films possess good properties for photoelectric conversion.While PTA-loaded TiO2 electrode(P) generated 26.9?f incident monochromatic phototo-to-electron conversion efficiency (IPCE),PMP-sensitized TiO2 electrodes yielded 55.8?and 39.1?for Ce^4 and Ce^3 respectively.PMP films can be considered as a kind of complexes whose HOMO energy levels were proved to eb higher than that of film P,which is one of the major reasons for the increase in IPCE form film P to film PMP.     

Self-assembly and photoelectric properties of cerium complexes with 3,4,9,10-perylenetetracarboxylic acid on nanocrystalline TiO_2 films

Self-assembled (SA) films (PMP, M = Ce3+ or Ce4+) of 3,4,9,10-perylenetetracarboxylic acid (PTA) on nanocrystalline TiO2 films with Ce3+ or Ce4+ as a bridge were fabricated and characterized with UV-Vis, IR, and XPS synchrotron radiation photoelectron spectroscopy (SRPES) which gave the HOMO energy levels for the SA films. It was shown that thin-layer sandwich-type solar cells based on these SA films possess good properties for photoelectric conversion. While PTA-loaded TiO2 electrode (P) generated 26.9% of incident monochromatic photon-to-electron conversion efficiency (IPCE), PMP-sensitized Ti02 electrodes yielded 55.8% and 39.1% for Ce4+ and Ce3+ respectively. PMP films can be considered as a kind of complexes whose HOMO energy levels were proved to be higher than that of film P, which is one of the major reasons for the increase in IPCE from film P to film PMP.     

Bei四羧酸铈在TiO2纳米晶膜上的光电转化性质

报道了Ce^3 和Ce^4 两种金属离子桥联Bei四羧酸在二氧化钛纳米晶电极上自组装膜的制备,并利用紫外可见光谱、红外光谱、光电子能谱等手段对自组装膜进行了表征．通过同步辐射光电子能谱确定了自组装膜的HOMO能级．基于自组装膜缺化二氧化钛纳米晶电极的薄层三明治型太阳能电池具有较好的光电传化性质．在480nm,Bei四羧酸敏化二氯化钛电极产生了26．9％的入射单色光子-电子转化效率(IPCE),而由Ce^4 离子或Ce^3 离子桥联所形成的自组装膜分别产生了55．8％和39.1％的IPCE．金属离子桥联Bei四羧酸自组装膜相当于一种配合物,其HOM0能级比Bei四羧酸自组装膜的高,这是形成铈离子桥联Bei四羧酸后IPCE提高的一个主要原因,     

ZB-2型制备液相色谱仪的研制

]ZB-2型制备液相色谱仪,是在我所自行研制ZB-1型制备液相色谱仪的基础上进一步改进后研制成功的。该仪器可以满足合成产物中主副产物的分离,天然药物中有效成份的分离要求。经三年多时间的试用,性能稳定,可满足制备分离的要求,效率较高,使用方便,对药物的研究工作起到了一定的作用。