ʻO ka mea silikoni ka mea maʻamau a kumu nui i ka ʻoihana semiconductor.Pono e hoʻomaka ke kaʻina hana paʻakikī o ke kaulahao ʻoihana semiconductor mai ka hana ʻana i nā mea silika kumu.
Monocrystalline silicon kukui māla lā
ʻO ke silikoni monocrystalline kahi ʻano o ka silika elemental.Ke hoʻoheheʻe ʻia ke silikona elemental, hoʻonohonoho ʻia nā ʻātoma silikona i loko o ka lattice daimana i loko o nā nuclei aniani he nui.Inā ulu kēia mau nuclei aniani a lilo i mau ʻanoʻano me ke ʻano like o ka mokulele aniani, e hoʻohui ʻia kēia mau kīʻaha e like me ka crystallize i loko o ka silika monocrystalline.
Loaʻa i ka silikoni monocrystalline nā waiwai kino o ka quasi-metal a nāwaliwali ka conductivity uila, e piʻi ana me ka piʻi ʻana o ka mahana.I ka manawa like, he koʻikoʻi ka semi-electrical conductivity monocrystalline silicon.ʻO ke silika monocrystalline ultra-pure he semiconductor intrinsic.Hiki ke hoʻomaikaʻi ʻia ka conductivity o ultra-pure monocrystal silicon ma ka hoʻohui ʻana i ka trace ⅢA element (e like me ka boron), a hiki ke hoʻokumu ʻia ka semiconductor silicon P-type.E like me ka hoʻohui ʻana o ka trace ⅤA mau mea (e like me ka phosphorus a i ʻole arsenic) hiki ke hoʻomaikaʻi i ke kiʻekiʻe o ka conductivity, ka hoʻokumu ʻana o N-type silicon semiconductor.
ʻO ka Polysilicon kahi ʻano o ke silika elemental.I ka wā e hoʻoheheʻe ʻia ai ke silika elemental i hoʻoheheʻe ʻia ma lalo o ke ʻano o ka supercooling, ua hoʻonohonoho ʻia nā ʻātoma silika i loko o nā nuclei aniani he nui i ke ʻano o ka lattice daimana.Inā ulu kēia mau nuclei aniani i mau ʻano me nā ʻano aniani like ʻole, hui pū kēia mau ʻano a crystallize i polysilicon.He ʻokoʻa ia mai ke silika monocrystalline, ka mea i hoʻohana ʻia i ka uila a me nā cell solar, a me ka silicon amorphous, i hoʻohana ʻia i nā mea kiʻiʻoniʻoni lahilahi akukui kīhāpai lā
ʻO kaʻokoʻa a me ka pilina ma waena o lāua
I loko o ka silikoni monocrystalline, ua like ke ʻano o ke aniani aniani a hiki ke ʻike ʻia e ke ʻano o waho.I loko o ka silikoni monocrystalline, hoʻomau ka lattice kristal o ka hāpana holoʻokoʻa a ʻaʻohe palena ʻai.Kakaʻikahi loa nā kristal hoʻokahi nui ma ke ʻano a paʻakikī ke hana ʻia i loko o ka hale hana (e nānā i ka recrystallization).ʻO ka ʻokoʻa, ua kaupalena ʻia nā kūlana o nā ʻātoma i nā hale amorphous i ka hoʻonohonoho pōkole.
ʻO nā māhele polycrystalline a me ka subcrystalline he helu nui o nā kristal liʻiliʻi a i ʻole microcrystals.ʻO Polysilicon kahi mea i hana ʻia me nā kristal silika liʻiliʻi liʻiliʻi.Hiki i nā pūnaewele polycrystalline ke ʻike i ke ʻano me ka hopena metala ʻike ʻia.Hoʻololi ʻia nā māka semiconductor me ka polysilicon solar grade i ke silika monocrystalline, ʻo ia hoʻi, ua hoʻololi ʻia nā kristal i hoʻopili ʻia i loko o ka polysilicon i ke aniani nui.Hoʻohana ʻia ke silika monocrystalline e hana i ka hapa nui o nā mea hana microelectronic pilikika.Hiki i ka Polysilicon ke hoʻokō i ka 99.9999% maʻemaʻe.Hoʻohana pū ʻia ka polysilicon ultra-pure i ka ʻoihana semiconductor, e like me 2 - a 3-mika lōʻihi polysilicon rods.I ka ʻoihana microelectronics, loaʻa ka polysilicon i nā noi ma nā unahi macro a me ka micro.ʻO nā kaʻina hana o ka silika monocrystalline me ke kaʻina Czeckorasky, ka hoʻoheheʻe ʻana a me ke kaʻina Bridgman.
ʻO ka ʻokoʻa ma waena o ka polysilicon a me ka silikon monocrystalline i hōʻike nui ʻia i nā waiwai kino.Ma ke ʻano o nā waiwai mechanical a me nā uila, ʻoi aku ka haʻahaʻa o ka polysilicon i ka silicon monocrystalline.Hiki ke hoʻohana ʻia ka Polysilicon e like me ka mea maka no ke kiʻi ʻana i ke silika monocrystalline.
1. Ma keʻano o ka anisotropy o nā mea mechanical, nā waiwai optical a me nā mea wela, ua emi loa ia ma mua o ka silika monocrystalline.
2. Ma ke ano o na waiwai uwila, ua emi loa ka nui o ka conductivity uila o ke silikoni polycrystalline ma mua o ka silika monocrystalline, a i ʻole aneane ʻaʻohe conductivity uila.
3, ma ke ʻano o ka hana kemika, liʻiliʻi loa ka ʻokoʻa ma waena o nā mea ʻelua, hoʻohana maʻamau i ka polysilicon
Ka manawa hoʻouna: Mar-24-2023