Ka waiwai kino a me ke kemika o ka polyilicon

ʻO ka polysilicon kahi luster metala hina a me ka nui o 2.32 ~ 2.34g / cm3. Ka helu hehee 1410℃. Ka helu paila 2355℃. Hiki ke hoʻoheheʻe ʻia i loko o ka hui ʻana o ka waika hydrofluoric a me ka waikawa nitric, hiki ʻole ke hoʻoheheʻe ʻia i ka wai, ka waikawa nitric a me ka waikawa hydrochloric. ʻO kona paʻakikī ma waena o ka germanium a me ka quartz. He palupalu ma ka lumi wela a hiki ke naha ke oki. E lilo ia i ductile ke hoʻomehana ʻia ma luna o 800℃, a hōʻike i ka deformation maopopo ma 1300℃. ʻAʻole hana ma ka lumi wela a hoʻopili me ka oxygen, nitrogen, sulfur, etc. i nā wela kiʻekiʻe. Ma kahi kūlana hoʻoheheʻe kiʻekiʻe, loaʻa iā ia ka hana kemika nui a hiki ke hoʻopili me nā mea āpau. Loaʻa iā ia nā waiwai semiconductor a he waiwai semiconductor koʻikoʻi a maikaʻi loa, akā hiki i ka nui o nā haumia ke hoʻopilikia nui i kona conductivity. Hoʻohana nui ʻia ia i ka ʻoihana uila ma ke ʻano he kumu kumu no ka hana ʻana i nā lekiō semiconductor, tape recorders, refrigerators, color TVs, video recorders, and electronic computers. Loaʻa ia ma ka chlorinating maloʻo silika pauka a maloʻo hydrogen chloride kinoea ma lalo o kekahi mau kūlana, a laila condensing, distilling, a me ka ho'ēmiʻana.

Hiki ke hoʻohana ʻia ka polysilicon e like me ka mea maka no ka huki ʻana i ka silika aniani hoʻokahi. ʻO ka ʻokoʻa ma waena o ka polysilicon a me ka silika aniani hoʻokahi i hōʻike nui ʻia i nā waiwai kino. No ka laʻana, ʻoi aku ka liʻiliʻi o ka anisotropy o nā waiwai mechanical, nā waiwai optical a me nā waiwai wela ma mua o ka silika aniani hoʻokahi; e pili ana i nā waiwai uila, ʻoi aku ka liʻiliʻi o ka conductivity o nā kristal polysilicon ma mua o ka silika aniani hoʻokahi, a ʻaneʻane ʻaʻohe conductivity. Ma ke ʻano o ka hana kemika, liʻiliʻi loa ka ʻokoʻa ma waena o nā mea ʻelua. hiki ke hoʻokaʻawale ʻia ka polysilicon a me ka silika aniani hoʻokahi mai kekahi i kekahi, akā pono e hoʻoholo ʻia ka ʻike maoli ma ka nānā ʻana i ke kuhikuhi mokulele aniani, ke ʻano conductivity a me ka resistivity o ka aniani. ʻO ka polysilicon ka mea kumu maoli no ka hana ʻana i ka silikoni aniani hoʻokahi, a ʻo ia ka mea ʻike uila kumu no nā mea semiconductor o kēia wā e like me ka naʻauao artificial, ka mana ʻakomi, ka hoʻoili ʻike, a me ka hoʻololi photoelectric.