Dangantaka tsakanin graphite da semiconducto

Ba daidai ba ne a ce graphite semiconductor ne. a wasu filayen bincike na kan iyaka, kayan carbon kamar carbon nanotubes, fina-finai na simintin ƙwayoyin carbon da lu'u-lu'u kamar fina-finai na carbon (mafi yawansu suna da wasu mahimman kaddarorin semiconductor a ƙarƙashin wasu yanayi) suna cikingraphite kayan, amma ƙananan tsarin su ya bambanta sosai da tsarin graphite na yau da kullun.

A cikin graphite, akwai electrons guda huɗu a cikin mafi girman Layer na carbon atoms, uku daga cikinsu suna yin haɗin gwiwa tare da electrons na sauran atom ɗin carbon, ta yadda kowane carbon atom yana da electrons guda uku don samar da haɗin gwiwa, sauran kuma ana kiransa π electrons. . Waɗannan π electrons suna motsawa kusan da yardar rai a cikin sarari tsakanin yadudduka, kuma aikin graphite ya dogara ne akan waɗannan π electrons. Ta hanyoyin sinadarai, bayan carbon da ke cikin graphite ya juya ya zama wani barga mai ƙarfi, kamar carbon dioxide, ƙarfin aiki yana raunana. Idan graphite ya kasance oxidized, waɗannan π electrons za su samar da covalent bond tare da electrons na oxygen atom, don haka ba za su iya motsawa cikin yardar kaina ba, kuma za a rage yawan aiki. Wannan shi ne Conductive manufa nagraphite madugu.

Masana'antar semiconductor galibi sun ƙunshi haɗaɗɗun da'irori, optoelectronics, masu rarrabawa da na'urori masu auna firikwensin. Sabbin kayan semiconductor suna buƙatar bin dokoki da yawa don maye gurbin kayan siliki na al'ada da cin nasarar ƙimar kasuwa. Tasirin Photoelectric da tasirin Hall sune dokoki biyu mafi mahimmanci a yau. Masana kimiyya sun lura da tasirin graphene na jimla a cikin dakin da zafin jiki kuma sun gano cewa graphene ba zai haifar da warwatsewar baya ba bayan cin karo da ƙazanta, wanda ke nuna cewa yana da kaddarorin gudanarwa. Graphene yana da kyawawan kaddarorin gani kuma zai canza tare da kauri. Ya dace da aikace-aikace a fagen optoelectronics. Graphene yana da kyawawan kaddarorin da yawa kuma za'a yi amfani dashi a fagage da yawa, kamar allon nuni, capacitor, firikwensin da sauransu.