By a News Reporter-Staff News Editor at Electronics Newsweekly -- Current study results on Optoelectronics have been published. According to news reporting from Mulhouse, France, by VerticalNews journalists, research stated, "Block copolymers have been widely investigated over the past decades for their ability to microphase separate into well-defined nanostructured thin films with tailored physical properties. The aim of the present study is to investigate the thin film properties of rod coil block copolymer/phenyl-C-61-butyric acid methyl ester (PCBM) blends as a function of the blend weight ratio, using a copolymer which is based on a poly(3-hexylthiophene) (P3HT) rod block and poly(4-vinylpyridine) (P4VP) coil block."
The news correspondents obtained a quote from the research from the Institute of Science, "Atomic force microscopy, transmission electron microscopy and grazing incidence X-ray diffraction analysis are used to study the influence of PCBM on the copolymer self-assembling. UV-visible absorption and photoluminescence spectroscopies as well as field-effect mobility measurements are performed in order to get further insight into the blend optoelectronic properties. It is found that the block copolymer phase-separated morphology and charge carrier mobilities strongly depend on the PCBM loading and thermal annealing. In particular, the results point out that PCBM enhances the block copolymer microphase separation within a narrow range of the polymer:PCBM weight ratio."
According to the news reporters, the research concluded: "In addition, clear evidence for PCBM accumulation within the P4VP domains is found by monitoring the P3HT fluorescence and charge carrier mobilities."
For more information on this research see: Microstructure and Optoelectronic Properties of P3HT-b-P4VP/PCBM Blends: Impact of PCBM on the Copolymer Self-Assembly. Macromolecules, 2013;46(22):8824-8831. Macromolecules can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Macromolecules - www.pubs.acs.org/journal/mamobx)
Our news journalists report that additional information may be obtained by contacting V. Gernigon, CNRS, UMR 7361, Inst Sci Mat Mulhouse, F-68057 Mulhouse, France. Additional authors for this research include P. Leveque, F. Richard, N. Leclerc, C. Brochon, C.H. Braun, S. Ludwigs, D.V. Anokhin, D.A. Ivanov, G. Hadziioannou and T. Heiser.
Keywords for this news article include: France, Europe, Mulhouse, Optoelectronics
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