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Title
Japanese:Enhancing the Photoelectric Effect with a Potential-Programmed Molecular Rectifier 
English:Enhancing the photoelectric effect with a potential-programmed molecular rectifier. 
Author
Japanese: 今岡 享稔, 上田 拓明, 山元 公寿.  
English: Takane Imaoka, Hiroaki Ueda, Kimihisa Yamamoto.  
Language English 
Journal/Book name
Japanese:Journal of the American Chemical Society 
English:J Am Chem Soc 
Volume, Number, Page Vol. 134    No. 20    pp. 8412-8415
Published date May 2012 
Publisher
Japanese: 
English:American Chemical Society 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL http://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=22568570&retmode=ref&cmd=prlinks
 
DOI https://doi.org/10.1021/ja3027373
Abstract Dendrimer-based electron rectifiers were applied to photoconducting devices. A remarkable enhancement of the photocurrent response was observed when a zinc porphyrin as the photosensitizer was embedded in the dendritic phenylazomethine (DPA) architecture. The dendrimer-based sensitizer exhibited a 20-fold higher current response than the non-dendritic zinc porphyrin. In sharp contrast, a similar application of the dendrimer with poly(vinylcarbazole) as the electron donor resulted in a decreased response. This is consistent with the idea that the DPA facilitates electron transfer from the core to its periphery along a potential gradient, as predicted by density functional theory calculations.

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