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nanotimes News in Brief

discharge cycles before it deteriorates too much to be of practical use.

Colin D. Wessells, Robert A. Huggins, Yi Cui: Copper hexacyanoferrate battery electrodes with long cycle life and high power, In: Nature Communications, Vol. 2(2011), November 22, 2011, Article number: 550, DOI:10.1038/ncomms1563: http://dx.doi.org/10.1038/ncomms1563

11-11/12 :: November/December 2011

is covered, which proves the high efficiency of gold as an anode buffer layer in organic photovoltaic devices.

L. Cattin, S. Tougaard, N. Stephant, S. Morsli und J. C. Bernède:On the ultrathin gold film used as buffer layer at the transparent conductive anode/organic electron donor interface, In: Gold Bulletin, Volume 44, Number 4, Pages 199-205, DOI:10.1007/s13404-011-0032-7: http://dx.doi.org/10.1007/s13404-011-0032-7

The Centre for Research in Advanced Textiles (CReATe) at Nottingham Trent University has an ambitious development strategy which it says allows it to offer an exciting opportunity for a PhD Student- ship, starting in January 2012. The studentships will pay UK/EU fees and provide a maintenance stipend linked to the RCUK rate (£13,590 per annum for 2011/12) for up to four years. The focus of the re- search is to integrate this new dimension of functio- nality into fibres/yarns.

http://www.ntu.ac.uk/research/groups_centres/art/create.html

Researchers from Denmark and France have used two different techniques, such as treated scanning electron microscope images and analysis of the inelastic part of peaks of X-ray photoelectron spec- troscopy spectra, to estimate the gold coverage and island height of the transparent conductive anode. There is an excellent agreement between the results achieved by both methods. Only 15% of the anode

Imec and Holst Centre have made a microma- chined harvester for vibration energy with a record output power of 489µW. Measurements and simulation show that the harvester is also suited for shock-induced energy harvesting in car tires, where it could power built-in sensors. In a tire, at 70km/h, the new device can deliver a constant 42µW, which is enough to power a simple wireless sensor node.

http://www.holstcentre.com http://www.imec.be

Harvesters with various dimensions. The shiny capaci- tor stack on top of the beam is visible through the glass package. © imec, Belgium