ʻO ka ʻokoʻa ma waena o ka polysilicon a me ka monocrystalline silicon

ʻO ka mea Silicon ka mea kumu a me ke koʻikoʻi loa i ka ʻoihana semiconductor. Pono e hoʻomaka ke kaʻina hana paʻakikī o ke kaulahao ʻoihana semiconductor mai ka hana ʻana o nā mea silicon kumu.

Kukui māla lā silicon monocrystalline

ʻO ka silicon monocrystalline kahi ʻano o ka silicon elemental. Ke paʻa ka silicon elemental i hoʻoheheʻe ʻia, ua hoʻonohonoho ʻia nā ʻātoma silicon ma ka lattice daimana i loko o nā nuclei kristal he nui. Inā ulu kēia mau nuclei kristal i loko o nā hua me ke kuhikuhi like o ka mokulele kristal, e hui pū ʻia kēia mau hua ma ke ʻano like e crystallize i loko o ka silicon monocrystalline.

Loaʻa i ka silicon monocrystalline nā ʻano kino o kahi quasi-metal a he nāwaliwali ka conductivity uila, kahi e hoʻonui ai me ka piʻi ʻana o ka mahana. I ka manawa like, loaʻa i ka silicon monocrystalline ka conductivity semi-electrical koʻikoʻi. ʻO ka silicon monocrystalline ultra-pure kahi semiconductor intrinsic. Hiki ke hoʻomaikaʻi ʻia ka conductivity o ka silicon monocrystal ultra-pure ma ka hoʻohui ʻana i nā mea trace ⅢA (e like me ka boron), a hiki ke hoʻokumu ʻia ka semiconductor silicon ʻano P. E like me ka hoʻohui ʻana o nā mea trace ⅤA (e like me ka phosphorus a i ʻole arsenic) hiki ke hoʻomaikaʻi i ke kiʻekiʻe o ka conductivity, ka hoʻokumu ʻana o ka semiconductor silicon ʻano N.

polysiliconkukui lā

ʻO Polysilicon kahi ʻano o ka silicon elemental. Ke paʻa ka silicon elemental i hoʻoheheʻe ʻia ma lalo o ke kūlana o ka supercooling, hoʻonohonoho ʻia nā ʻātoma silicon i loko o nā nuclei kristal he nui ma ke ʻano o ka lattice daimana. Inā ulu kēia mau nuclei kristal i loko o nā hua me ke kuhikuhi kristal ʻokoʻa, hui pū kēia mau hua a crystallize i loko o polysilicon. He ʻokoʻa ia mai ka silicon monocrystalline, ka mea i hoʻohana ʻia i nā mea uila a me nā cell solar, a mai ka silicon amorphous, ka mea i hoʻohana ʻia i nā mea hana ʻili lahilahi a mekukui māla o nā pūnaewele solar

ʻO ka ʻokoʻa a me ka pilina ma waena o nā mea ʻelua

I loko o ka silicon monocrystalline, ua like ke ʻano o ke kiʻikuhi kristal a hiki ke ʻike ʻia e ke ʻano like o waho. I loko o ka silicon monocrystalline, ua hoʻomau ka lattice kristal o ka hāpana holoʻokoʻa a ʻaʻohe ona palena palaoa. He mea kakaikahi loa nā kristal nui hoʻokahi ma ke ʻano a paʻakikī ke hana i loko o ka hale hana (e ʻike i ka recrystallization). I ka hoʻohālikelike ʻana, ua kaupalena ʻia nā kūlana o nā ʻātoma i loko o nā ʻano amorphous i ke kauoha pōkole.

ʻO nā pae Polycrystalline a me nā subcrystalline he nui nā kristal liʻiliʻi a i ʻole microcrystals. ʻO Polysilicon kahi mea i hana ʻia me nā kristal silicon liʻiliʻi he nui. Hiki i nā cell Polycrystalline ke ʻike i ke ʻano ma o ka hopena metala pepa i ʻike ʻia. Hoʻololi ʻia nā papa Semiconductor me ka polysilicon papa solar i monocrystalline silicon, ʻo ia hoʻi, ua hoʻololi ʻia nā kristal i hoʻopili ʻia i loko o ka polysilicon i loko o kahi kristal hoʻokahi nui. Hoʻohana ʻia ka silicon Monocrystalline e hana i ka hapa nui o nā mea microelectronic e pili ana i ka silicon. Hiki i ka Polysilicon ke hoʻokō i ka maʻemaʻe 99.9999%. Hoʻohana ʻia ka polysilicon Ultra-pure i ka ʻoihana semiconductor, e like me nā koʻokoʻo polysilicon 2 - a 3-mika ka lōʻihi. I ka ʻoihana microelectronics, loaʻa nā noi polysilicon ma nā unahi macro a me micro. ʻO nā kaʻina hana o ka silicon monocrystalline e komo pū me ke kaʻina Czeckorasky, ka hoʻoheheʻe ʻana o ka zone a me ke kaʻina Bridgman.

ʻO ka ʻokoʻa ma waena o ka polysilicon a me ka monocrystalline silicon e hōʻike nui ʻia ana ma nā waiwai kino. Ma ke ʻano o nā waiwai mechanical a me nā uila, ʻoi aku ka haʻahaʻa o ka polysilicon ma mua o ka monocrystalline silicon. Hiki ke hoʻohana ʻia ka Polysilicon ma ke ʻano he mea maka no ke kaha kiʻi ʻana i ka monocrystalline silicon.

1. Ma ke ʻano o ka anisotropy o nā waiwai mechanical, nā waiwai optical a me nā waiwai thermal, ʻoi aku ka liʻiliʻi o ka ʻike ma mua o ka silicon monocrystalline

2. Ma ke ʻano o nā waiwai uila, ʻoi aku ka liʻiliʻi o ke koʻikoʻi o ka conductivity uila o ka polycrystalline silicon ma mua o ka monocrystalline silicon, a ʻaneʻane ʻaʻohe conductivity uila.

3, ma ke ʻano o ka hana kemika, ʻo ka ʻokoʻa ma waena o nā mea ʻelua he mea liʻiliʻi loa ia, ʻoi aku ka hoʻohana ʻana i ka polysilicon