Is 'semiconductor' always just another name for 'transition metal'?

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Discussion Overview

The discussion revolves around the relationship between the terms 'semiconductor' and 'transition metal', exploring whether semiconductors can be classified as a subset of transition metals or if they represent a distinct category of materials. The scope includes conceptual clarifications and technical explanations regarding the definitions and properties of these materials.

Discussion Character

  • Conceptual clarification, Debate/contested, Technical explanation

Main Points Raised

  • One participant questions whether 'semiconductor' is simply another name for 'transition metal', suggesting that other materials could also qualify as semiconductors.
  • Another participant argues that transition metals and semiconductors are fundamentally different, defining transition metals as those with partially-filled f-orbitals and noting that semiconductors have a specific band gap in their energy structure.
  • Examples of semiconductors provided include silicon and germanium, which are not transition metals, as well as compound semiconductors like gallium arsenide and cadmium sulfide.
  • A question is raised about carbon's status as a semiconductor, with a later reply affirming that diamond, a form of carbon, can act as a semiconductor due to its wide bandgap.

Areas of Agreement / Disagreement

Participants express disagreement regarding the classification of semiconductors and transition metals, with multiple competing views on the definitions and examples of each category remaining unresolved.

Contextual Notes

The discussion highlights the complexity of material classifications and the specific conditions under which certain materials are categorized as semiconductors, without resolving the definitions or relationships between these terms.

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Or is 'semiconductor' more specific, referring to only some transition metals?

After looking up the etymology*, I guess that a hypothetical material besides the transition elements which had properties which met the definition of 'semiconductor' would qualify; but that doesn't completely answer my question.

*http://www.etymonline.com/index.php?term=semiconductor
 
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Huh?? Where did you get this idea? The two terms are very different. Transition metals are the elements in the middle of the periodic table which have partially-filled f-orbitals. Examples are iron, copper, titanium, etc. I think all of these are metals. 'Semiconductor' refers to substances which have a band gap in their energy band structure, and so have electrical conductivities that are midway between metals and insulators. Elemental semiconductors include silicon and germanium (neither of which are transition metals), but there are compound semiconductors as well, such as gallium arsenide and cadmium sulfide.
 
Is carbon a semiconductor then?
 
skeptic2 said:
Is carbon a semiconductor then?

Yes, as diamond, it definitely is. Due to it's wide bandgap diamond may become a useful semiconductor for high power high temperature applications.
 

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