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Silicon

Companies Silicon

Silicium de Provence, France

Silicium de Provence is a company dedicated to the production of highly pure silicon for high power solar cells. The high quality polysilicon chunks can be used in any casting and wafering process, leading to highest efficiency solar cells. With an initial annual output of more than 4,500 metric more

Schmid Silicon Technology GmbH, Germany

The Schmid Silicon Technology built the first chemical plant manufacturers own production plant for polysilicon which Schmid Polysilicon Production (SPP). more

RW silicium GmbH, Germany

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News Silicon

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Infographics Silicon

The Chemical Elements of a Smartphone

There are an isolated few graphics online that look at elements involved in the manufacture of a smartphone – for example, this ‘Periodic Table of iPhones’ – but there’s actually remarkably little easily accessible information out there that details the specific compounds used for specific purposes more

Group 4 Elements

This latest infographic focuses on the Group 4 (Group 14 in IUPAC nomenclature) elements. One extra fact to add for the curious: although tin has the greatest number of stable isotopes, Xenon trumps it comprehensively if unstable isotopes are also included in the count, with well over 30 possible is more

The Chemistry of Silly Putty

Silly putty (or science putty, as it’s sometimes referred to) is an odd material. Stretch it slowly and it happily deforms, and can be molded very easily. However, pull it apart with enough force and it’ll snap clean in two. It flows imperceptibly slowly, as if it were a thick liquid, but when rolle more

q&more articles Silicon

  • How the Avogadro constant was measured for the last time

    Since the 20th of May 2019, the mass unit kilogram is no longer defined by the international kilogram prototype but by the numerical value of the Planck constant, the most important fundamental constant in quantum physics. For this definition, the Planck constant needed to be measured with the greatest possible accuracy by two independent methods. more

  • The Best Measurement

    It is now more than 30 years since attempts started to find a way of defining the kilogram based on an atomic constant or a fundamental physical constant. Since then, two methods have advanced sufficiently far to make it likely that there will be a new definition within the coming years, namely the Watt balance ­experiment for determination of Planck‘s constant h and the Avogadro experiment for determining the ­Avogadro Constant NA. more

Definition

Silicon

Silicon Silicon ( or , ) is the chemical element that has the symbol Si and atomic number 14. A tetravalent metalloid , silicon is less reactive than its chemical analog carbon . As the eighth most common element in the universe by mass, sil ... more

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