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Findings from M. Ince et al Has Provided New Information about Molecular Engineering (Molecular Engineering of Phthalocyanine Sensitizers for...

September 3, 2014

Findings from M. Ince et al Has Provided New Information about Molecular Engineering (Molecular Engineering of Phthalocyanine Sensitizers for Dye-Sensitized Solar Cells)

By a News Reporter-Staff News Editor at Journal of Engineering -- Current study results on Molecular Engineering have been published. According to news originating from Gyeonggi Do, South Korea, by VerticalNews correspondents, research stated, "A series of novel near-infrared-absorbing zinc phthalocyanines bearing donor-chromophore-acceptor/anchoring groups have been synthesized to investigate their influence on solar cell performance. With the aim of extending the absorption spectra while maintaining the minimization of aggregation by using 2,6-diphenylphenoxy bulky groups, the benzodithiadazole was used as an electron acceptor moiety and the carboxylic acid and the anhydride unit were adopted as an anchoring group."

Our news journalists obtained a quote from the research, "These dyes have been used as sensitizers in dye-sensitized solar cells, and their performance has been compared with that of phthalocyanine (Pc) sensitizer TT40, which has an ethynyl bridge between the anchoring carboxy group and the macrocycle. The new ZnPcs show an extended pi-conjugated system which produces red maximum of ca. 10 nm in comparison to that of TT40."

According to the news editors, the research concluded: "Despite the red-shifted spectral response, these cells gave modest power conversion efficiencies of ca. 3% because of the lower lowest unoccupied molecular orbital level of the Pcs, which limits the electron injection from the dyes to the TiO2."

For more information on this research see: Molecular Engineering of Phthalocyanine Sensitizers for Dye-Sensitized Solar Cells. Journal of Physical Chemistry C, 2014;118(30):17166-17170. Journal of Physical Chemistry C can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society -; Journal of Physical Chemistry C -

The news correspondents report that additional information may be obtained from M. Ince, Dongjin Semichem Co LTD, R&D Center DSC Team, Hwasung 445935, Gyeonggi, South Korea. Additional authors for this research include J.H. Yum, Y. Kim, S. Mathew, M. Gratzel, T. Torres and M.K. Nazeeruddin.

Keywords for this news article include: Asia, Gyeonggi Do, South Korea, Nanotechnology, Emerging Technologies, Molecular Engineering

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Source: Journal of Engineering

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