*Q:Why carbon does not use as a semiconductor?* Answer
Electricity can conduct through carbon, but carbon does have a significant resistance, and much of the electrical energy will be lost as heat energy when it passes through carbon and it forms diamond crystal structure so when we add impurity atoms it will not make any significant change...+ Carbon is not used as semiconductor it has 4 valence electrons in it valence shell but the energy gap is very small it will conduct electricity even at room temperature ,the size of carbon is very small . It depends upon the structure of carbon.In case of germanium and silicon they have d orbits in the outer shell and they have greater mobility. I think we need to give much energy for conduction because the valance electrons are very close to nucleus and on the case of Silicon and germanium they are so far from nucleus as compared to carbon.and i think it has very hard crystalline structure so change in structure(doping) is harder than other semiconductor little a bit .but latest semiconductor Graphene is the another form of carbon (upper layer) and Konstantin Novoselove and Andre Geim won the Nobel prize in physics in 2010 for this semiconductor.and it is very superior than our convention semiconductor (compound+elemental).another semiconductor Molybdnite is more superior than Graphene it has very high mobility and energy gap(1.8eV Approx) in comparison of others.for more detail about these semiconductor On Jan 29, 2016 10:27 AM, "THIPPESWAMY J" <[email protected]> wrote: > > Dear teachers my doubt is regarding "carbon" why it is not a semi > conductor being 14th group element. Please clarify. > > THIPPESWAMY.J. MSc, B.Ed . > A.M (CBZ) > G.H.S Towdur. > Harapanahalli.Taluk > Davanagere District. > Mobile no 9845357075 > > -- > 1. If a teacher wants to join STF, visit > http://karnatakaeducation.org.in/KOER/en/index.php/Become_a_STF_groups_member > 2. For STF training, visit KOER - > http://karnatakaeducation.org.in/KOER/en/index.php > 4. For Ubuntu 14.04 installation, visit > http://karnatakaeducation.org.in/KOER/en/index.php/Kalpavriksha > 4. For doubts on Ubuntu, public software, visit > http://karnatakaeducation.org.in/KOER/en/index.php/Frequently_Asked_Questions > 5. Are you using pirated software? Use Sarvajanika Tantramsha, see > http://karnatakaeducation.org.in/KOER/en/index.php/Why_public_software > ಸಾರ್ವಜನಿಕ ಇಲಾಖೆಗೆ ಸಾರ್ವಜನಿಕ ತಂತ್ರಾಂಶ > --- > You received this message because you are subscribed to the Google Groups > "Maths & Science STF" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/mathssciencestf. > For more options, visit https://groups.google.com/d/optout. > -- 1. If a teacher wants to join STF, visit http://karnatakaeducation.org.in/KOER/en/index.php/Become_a_STF_groups_member 2. For STF training, visit KOER - http://karnatakaeducation.org.in/KOER/en/index.php 4. For Ubuntu 14.04 installation, visit http://karnatakaeducation.org.in/KOER/en/index.php/Kalpavriksha 4. For doubts on Ubuntu, public software, visit http://karnatakaeducation.org.in/KOER/en/index.php/Frequently_Asked_Questions 5. Are you using pirated software? Use Sarvajanika Tantramsha, see http://karnatakaeducation.org.in/KOER/en/index.php/Why_public_software ಸಾರ್ವಜನಿಕ ಇಲಾಖೆಗೆ ಸಾರ್ವಜನಿಕ ತಂತ್ರಾಂಶ --- You received this message because you are subscribed to the Google Groups "Maths & Science STF" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. Visit this group at https://groups.google.com/group/mathssciencestf. For more options, visit https://groups.google.com/d/optout.
