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首页> 外文期刊>New Journal of Chemistry >Molecular photosensors of self-assembled monolayers: electron acceptor-photosensitizer dyad on an ITO surface
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Molecular photosensors of self-assembled monolayers: electron acceptor-photosensitizer dyad on an ITO surface

机译：自组装单分子层的分子光电传感器：ITO表面上的电子受体-光敏剂二聚体

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摘要

Self-assembled monolayers of di-(3-diaminopropyl)-viologen (DAPV) were prepared on a tin-doped indium oxide (ITO) surface as acceptor layers. Photoactive layers of Ru(2,2'-bipyridine-4,4'-dicarboxylic acid)(2)( NCS)(2) were formed on DAPV to give an acceptor - sensitizer dyad on ITO. The photon energy was monitored by measuring the ITO conductivity change. Under illumination, the ITO conductivity increased with the current increasing by increments of 8 nA indicating the construction of molecular photosensors on the ITO surface. The concept of a molecular photosensor was further applied to a molecular photovoltaic system. The presence of the viologen moiety bridges the energy levels between the LUMO of the Ru sensitizer and ITO, and improves the efficiency of a photovoltaic cell with a quantum yield of 18.4% at 3.3 mW cm(-2).
机译：在掺锡的氧化铟（ITO）表面上制备二（3-二氨基丙基）-紫精（DAPV）的自组装单层作为受体层。 Ru（2,2'-联吡啶-4,4'-二羧酸）（2）（NCS）（2）的光敏层在DAPV上形成，从而在ITO上形成受体-敏化剂二元组。通过测量ITO电导率变化来监测光子能量。在光照下，ITO电导率随电流的增加而增加，增量为8 nA，这表明在ITO表面上构造了分子光电传感器。分子光电传感器的概念进一步应用于分子光伏系统。紫胶部分的存在桥接了Ru敏化剂的LUMO和ITO之间的能级，并提高了3.3 mW cm（-2）时量子产率为18.4％的光伏电池的效率。

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