Color Change Effect in an Organic–Inorganic Hybrid Material Based on a Porphyrin Diacid
Color Change Effect in an Organic–Inorganic Hybrid Material Based on a Porphyrin Diacid
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DOI：
10.1021/acs.jpcc.6b11188
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发表时间：
2016-11
影响因子：
3.7
通讯作者：
Bettina Wagner;Natalie Dehnhardt;M. Schmid;Benedikt P. Klein;Lukas Ruppenthal;Philipp Müller;Malte Zugermeier;J. M. Gottfried;S. Lippert;M. Halbich;A. Rahimi‐Iman;Johanna Heine
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文献类型：
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作者：
Bettina Wagner;Natalie Dehnhardt;M. Schmid;Benedikt P. Klein;Lukas Ruppenthal;Philipp Müller;Malte Zugermeier;J. M. Gottfried;S. Lippert;M. Halbich;A. Rahimi‐Iman;Johanna Heine
卟啉材料显示出一系列有趣和有用的光学和电学性质。在这项工作中，已经使用了不太知名的卟啉二酸亚类，与卤代三羧酸根阴离子结合，构建离子型有机-无机杂化材料。所得化合物[H6 TPyP][BiCl 6]2（1）（TPyP =四（4-吡啶基）卟啉）已通过基于简单溶液的合成以单晶形式获得。该材料在室温下具有650和850 nm之间的宽光致发光发射带。[H6 TPyP][BiCl 6]2的单晶显示出fA的光电流和nA范围内的高得多的暗电流。它们在用不同液体润湿时还显示出意想不到的可逆颜色变化。这一现象已与光学光谱，SEM，XPS和NEXAFS技术进行了研究，表明基于表面的结构着色效应是颜色变化的来源。这与其他材料形成鲜明对比，其中结构着色类型...
Porphyrinic materials show a range of interesting and useful optical and electrical properties. The less well-known subclass of porphyrin diacids has been used in this work to construct an ionic hybrid organic–inorganic material in combination with a halogenidometalate anion. The resulting compound, [H6TPyP][BiCl6]2 (1) (TPyP = tetra(4-pyridyl)porphyrin), has been obtained via a facile solution-based synthesis in single crystalline form. The material exhibits a broad photoluminescence emission band between 650 and 850 nm at room temperature. Single crystals of [H6TPyP][BiCl6]2 show a photocurrent in the fA and a much higher dark current in the nA range. They also display an unexpected reversible color change upon wetting with different liquids. This phenomenon has been investigated with optical spectroscopy, SEM, XPS, and NEXAFS techniques, showing that a surface-based structural coloration effect is the source of the color change. This stands in contrast to other materials where structural coloration typ...