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首页> 外文期刊>Physical chemistry chemical physics: PCCP >Thermally-induced single-crystal-to-single-crystal transformations from a 2D two-fold interpenetrating square lattice layer to a 3D four-fold interpenetrating diamond framework and its application in dye-sensitized solar cells
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Thermally-induced single-crystal-to-single-crystal transformations from a 2D two-fold interpenetrating square lattice layer to a 3D four-fold interpenetrating diamond framework and its application in dye-sensitized solar cells

机译：从2D互穿的正方形方晶格到3D互穿的3D金刚石构架的热诱导单晶到单晶转变及其在染料敏化太阳能电池中的应用

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In this work, a rare 2D -> 3D single-crystal-to-single-crystal transformation (SCSC) is observed in metal-organic coordination complexes, which is triggered by thermal treatment. The 2D two-fold interpenetrating square lattice layer [Cd(IBA)(2)](n) (1) is irreversibly converted into a 3D four-fold interpenetrating diamond framework {[Cd(IBA)(2)(H2O)]center dot 2.5H(2)O}(n) (2) (HIBA = 4-(1H-imidazol-1-yl)benzoic acid). Consideration is given to these two complexes with different interpenetrating structures and dimensionality, and their influence on photovoltaic properties are studied. Encouraged by the UV-visible absorption and HOMO-LUMO energy states matched for sensitizing TiO2, the two complexes are employed in combination with N719 in dyesensitized solar cells (DSSCs) to compensate absorption in the ultraviolet and blue-violet region, offset competitive visible light absorption of I-3(-) and reducing charge the recombination of injected electrons. After co-sensitization with 1 and 2, the device co-sensitized by 1/N719 and 2/N719 to yield overall efficiencies of 7.82% and 8.39%, which are 19.94% and 28.68% higher than that of the device sensitized only by N719 (6.52%). Consequently, high dimensional interpenetrating complexes could serve as excellent co-sensitizers and have application in DSSCs.
机译：在这项工作中，在金属-有机配位络合物中观察到罕见的2D-> 3D单晶到单晶转变（SCSC），这是由热处理触发的。将2D互穿的2D正方形方格层[Cd（IBA）（2）]（n）（1）不可逆地转换为3D互穿的4D菱形框架{[Cd（IBA）（2）（H2O）] center点2.5H（2）O}（n）（2）（HIBA = 4-（1H-咪唑-1-基）苯甲酸）。考虑了互穿结构和尺寸不同的这两种配合物，研究了它们对光伏性能的影响。受到紫外可见吸收和HOMO-LUMO能态匹配以激发TiO2的激发，这两种配合物与N719结合用于染料敏化太阳能电池（DSSC）中，以补偿紫外线和蓝紫色区域的吸收，抵消竞争性可见光吸收I-3（-）并减少电荷，使注入的电子重组。与1和2共敏化后，该器件被1 / N719和2 / N719共敏化，产生的总效率为7.82％和8.39％，比仅由N719敏化的器件高19.94％和28.68％。 （6.52％）。因此，高维互穿复合物可以用作出色的共敏剂，并在DSSC中得到应用。

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