By a News Reporter-Staff News Editor at Electronics Newsweekly -- Current study results on Nitrogen have been published. According to news reporting originating from Oulu, Finland, by VerticalNews correspondents, research stated, "For the first time it is reported that nitrogen-doped titanium oxide with light annealing can improve the device performance by 300% when acting as an interfacial layer between CdSe quantum dot/poly-3-hexylthiophene and the cathode in the photovoltaic devices. Substitutional N doping with a concentration of 1.2 at.% was found by X-ray photoelectron spectroscopy which was responsible for 0.1 eV band gap reduction of TiOx."
Our news editors obtained a quote from the research from the University of Oulu, "Photoluminescence and the external quantum efficiency spectrum confirmed the enhanced charge collection and association rate after light annealing. Three-dimensional atomic force microscopy results agreed with the series resistance measurements, confirming that a good contact was achieved. The topography study also indicated that the active layer morphology changed upon light annealing. Improved stability and longer lifetime were also found with TiOxNy capped devices, which were optimized with light annealing."
According to the news editors, the research concluded: "TiOx capped devices were also evaluated for comparison in this study."
For more information on this research see: Light-induced enhancement of quantum dot photovoltaic devices with nitrogen doped titanium oxide capping layers. Organic Electronics, 2013;14(12):3339-3347. Organic Electronics can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Organic Electronics - www.elsevier.com/wps/product/cws_home/620806)
The news editors report that additional information may be obtained by contacting J.L. Yu, University of Oulu, Oulu 90014, Finland. Additional authors for this research include J.L. Xia, I. Kim, B.L. French, H.M. Haverinen, T.L. Alford and G.E. Jabbour.
Keywords for this news article include: Oulu, Europe, Finland, Nitrogen, Titanium, Electronics, Light Metals, Photovoltaic, Quantum Dots, Nanotechnology, Emerging Technologies
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