No ke aha e hana ai ka pepa graphite i ka uila?
No ka mea, loaʻa i ka graphite nā uku hoʻoneʻe manuahi, neʻe manuahi nā uku ma hope o ka electrification e hana i kēia manawa, no laila hiki iā ia ke alakaʻi i ka uila. ʻO ke kumu maoli o ka hana ʻana o ka graphite i ka uila, ʻo ia ka hoʻokaʻawale ʻana o nā ʻātoma kalapona 6 i 6 mau electrons e hana i kahi paʻa ∏66 nui me 6 electrons a me 6 mau kikowaena. I loko o ke apo kalapona o ka papa graphite hoʻokahi, hana nā apo 6-member a pau i ∏-∏ pūnaewele hui. ʻO ia hoʻi, i loko o ke apo kalapona o ka papa graphite hoʻokahi, ua hana nā ʻātoma kalapona a pau i kahi paʻa ∏ nui loa, a hiki i nā electrons a pau i loko o kēia paʻa ∏ nui ke kahe wale i loko o ka papa, ʻo ia ke kumu e hiki ai i ka pepa graphite ke hana. uila.
He ʻano lamellar ka graphite, a aia nā electrons manuahi ʻaʻole i hoʻopaʻa ʻia ma waena o nā papa. Ma hope o ka electrification, hiki iā lākou ke neʻe pololei. Ma kahi o nā mea a pau e hana i ka uila, he mea wale nō ia o ka resistivity. ʻO ke ʻano o ka graphite ka mea i loaʻa ka resistivity liʻiliʻi ma waena o nā mea kalapona.
ʻO ka manaʻo alakaʻi o ka pepa graphite:
ʻO ke kalapona he ʻātoma tetravalent. Ma kekahi ʻaoʻao, e like me nā ʻātoma metala, ua maʻalahi nā electrons o waho. ʻOi aku ka liʻiliʻi o nā electrons waho loa. Ua like loa ia me nā metala, no laila aia kekahi mau conductivity uila. , e hana ʻia nā electrons manuahi a me nā lua. Hoʻohui pū ʻia me nā electrons waho e hiki ke nalowale ke kalapona, ma lalo o ka hana o ka ʻokoʻa kūpono, e neʻe a hoʻopiha i nā puka. E hana i kahi kahe o nā electrons. ʻO kēia ke kumu o nā semiconductor.
Ka manawa hoʻouna: Mar-14-2022