Surface functionalization and electronic interactions of ZnO nanorods with a porphyrin derivative.
Surface functionalization and electronic interactions of ZnO nanorods with a porphyrin derivative.
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DOI：
10.1021/am5004552
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发表时间：
2014-04
影响因子：
9.5
通讯作者：
M. Klaumünzer;A. Kahnt;A. Burger;M. Mačković;C. Münzel;R. Srikantharajah;E. Spiecker;A. Hirsch;W. Peukert;D. Guldi
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文献类型：
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作者：
M. Klaumünzer;A. Kahnt;A. Burger;M. Mačković;C. Münzel;R. Srikantharajah;E. Spiecker;A. Hirsch;W. Peukert;D. Guldi
为了优化电子纳米颗粒薄膜中的电子转移和光电性能，我们通过用氧化还原有机成分（即带有 5,10,15,20-（苯氧基乙酸酯）-卟啉）取代表面活性 2-[2-(2-甲氧基乙氧基)乙氧基]乙酸 (TODA) 来实现 ZnO 纳米棒的表面功能化 四种羧酸作为可能的 ZnO 锚定物。显微镜——透射电子显微镜——和光谱——光学光谱——验证了卟啉成功且均匀地整合到 ZnO 纳米棒表面上，这是四个锚定基团促进的过程。基于发射光谱和吸收光谱的光物理研究提示了 ZnO 纳米棒和卟啉之间不同的电子相互作用。因此，我们进行了进一步的光物理研究，并进行了脉冲放射分解测定，以证实电子相互作用的性质。
To optimize electron transfer and optoelectronic properties in nanoparticulate thin films for electronics we show the surface functionalization of ZnO nanorods by means of replacing surface active 2-[2-(2-methoxyethoxy)ethoxy]acetic acid (TODA) by a redoxactive organic component, that is, 5,10,15,20-(phenoxyacetat)-porphyrin bearing four carboxylic acids as possible ZnO anchors. Microscopy-transmission electron microscopy-and spectroscopy-optical spectroscopy-verifies the successful and homogenous integration of the porphyrin onto the surface of ZnO nanorods, a process that is facilitated by the four anchoring groups. Photophysical investigations based on emission and absorption spectroscopy prompt to distinct electronic interactions between ZnO nanorods and the porphyrins. Consequently, we performed further photophysical studies flanked by pulse radiolysis assays to corroborate the nature of the electronic interactions.