Four lectures on secant varieties

This paper is based on the first author's lectures at the 2012 University of Regina Workshop "Connections Between Algebra and Geometry". Its aim is to provide an introduction to the theory of higher secant varieties and their applications. Several references and solved exercises are also included.Comment: Lectures notes to appear in PROMS (Springer Proceedings in Mathematics & Statistics), Springer/Birkhause

Electrical and optical characterisation of MQW solar cells under elevated temperature and illumination levels

SIGLEAvailable from British Library Document Supply Centre-DSC:DXN035372 / BLDSC - British Library Document Supply CentreGBUnited Kingdo

InGaP/GaAs inverted dual junction solar cells for CPV applications using metal-backed epitaxial lift-off

Contains fulltext : 84345.pdf (publisher's version ) (Open Access)6th International Conference on Concentrating Photovoltaic, ICPV-

Inverted thin film InGaP/GaAs tandem solar cells for CPV applications using epitaxial lift off

Contains fulltext : 174583.pdf (publisher's version ) (Closed access) Contains fulltext : 174583.pdf (preprint version ) (Open Access)35th IEEE Photovoltaic Specialists Conference, Hawaiian Convention Center Honolulu, Hawaii, June 20-25, 2010

An STM study of the development of surface features on gold under low-energy helium ion bombardment

The development of small-scale surface topography on initially atomically flat gold surfaces under irradiation with 3 keV helium ions has been investigated using a scanning tunneling microscope (STM). The study has revealed surface features that appear to result from the underlying defect morphology in the implanted metal rather than from sputter-erosion processes occurring at the surface. These features are stable at room temperature. Smaller, sub-monolayer height “bumps” have also been observed under some conditions. It is postulated that these features may be an electronic rather than an elastic effect

Radiative recombination in strain-balanced quantum well solar cells

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Progress in quantum well solar cells

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