Kusiyana pakati pa polysilicon ndi silicon monocrystalline

Zida za silicon ndiye chinthu chofunikira kwambiri komanso chofunikira kwambiri pamakampani a semiconductor. Njira yovuta yopangira makina a semiconductor iyeneranso kuyambira pakupanga zinthu zoyambira za silicon.

Monocrystalline silicon solar dimba kuwala

Silicon ya monocrystalline ndi mawonekedwe a silicon oyambira. Silicon yosungunuka ikakhazikika, maatomu a silikoni amasanjidwa m'magawo a diamondi kukhala ma nuclei ambiri akristalo. Ngati ma kristalo amtunduwu akukula kukhala njere zokhala ndi mawonekedwe ofanana ndi ndege ya kristalo, njerezi zimaphatikizidwa mofanana kuti ziwonekere mu silicon ya monocrystalline.

Silicon ya monocrystalline imakhala ndi mawonekedwe a quasi-zitsulo ndipo imakhala ndi mphamvu zamagetsi zofooka, zomwe zimawonjezeka ndi kutentha kwakukulu. Panthawi imodzimodziyo, silicon ya monocrystalline imakhalanso ndi makonzedwe apakati amagetsi. Ultra-pure monocrystalline silicon ndi intrinsic semiconductor. Ma conductivity a silicon ultra-pure monocrystal silicon amatha kuwongolera powonjezera ⅢA zinthu (monga boron), ndi P-mtundu wa silicon semiconductor amatha kupangidwa. Monga kuwonjezera kwa trace ⅤA zinthu (monga phosphorous kapena arsenic) kungathenso kusintha mlingo wa conductivity, mapangidwe a N-mtundu wa silicon semiconductor.

polysiliconkuwala kwa dzuwa

Polysilicon ndi mawonekedwe a elemental silicon. Pamene silicon yosungunuka yosungunuka ikhazikika pansi pa kutentha kwakukulu, maatomu a silikoni amasanjidwa kukhala ma nuclei ambiri amtundu wa diamondi. Ngati minyewa ya krustalo ikukula kukhala njere zokhala ndi mawonekedwe osiyanasiyana a kristalo, njerezi zimaphatikizana ndikuwulira kukhala polysilicon. Imasiyana ndi silicon ya monocrystalline, yomwe imagwiritsidwa ntchito pamagetsi ndi ma cell a solar, komanso ku silicon ya amorphous, yomwe imagwiritsidwa ntchito pazida zoonda zamafilimu ndidzuwa maselo munda kuwala

Kusiyana ndi kugwirizana pakati pa awiriwa

Mu monocrystalline silicon, mawonekedwe a kristalo amafanana ndipo amatha kudziwika ndi mawonekedwe akunja a yunifolomu. Mu silicon ya monocrystalline, kristalo wa kristalo wa chitsanzo chonse ndi mosalekeza ndipo alibe malire a tirigu. Makhiristo akuluakulu amodzi ndi osowa kwambiri m'chilengedwe ndipo ndi ovuta kupanga mu labotale (onani recrystallization). Mosiyana ndi izi, malo a ma atomu m'mapangidwe a amorphous amangokhala ndi dongosolo lalifupi.

Magawo a polycrystalline ndi subcrystalline amakhala ndi makristasi ambiri ang'onoang'ono kapena ma microcrystals. Polysilicon ndi chinthu chopangidwa ndi makristalo ang'onoang'ono a silicon. Maselo a polycrystalline amatha kuzindikira mawonekedwe ndi mawonekedwe achitsulo. Makalasi a Semiconductor kuphatikiza ma solar grade polysilicon amasinthidwa kukhala silicon ya monocrystalline, kutanthauza kuti makhiristo olumikizidwa mwachisawawa mu polysilicon amasinthidwa kukhala kristalo imodzi yayikulu. Silicon ya monocrystalline imagwiritsidwa ntchito popanga zida zambiri za silicon-based microelectronic. Polysilicon imatha kukwaniritsa 99.9999% chiyero. Polysilicon yoyera kwambiri imagwiritsidwanso ntchito pamakampani opanga ma semiconductor, monga 2 - mpaka 3 mita kutalika ndodo za polysilicon. M'makampani opanga ma microelectronics, polysilicon imagwiritsa ntchito masikelo akulu ndi ang'onoang'ono. Njira zopangira silicon ya monocrystalline zikuphatikiza njira ya Czeckorasky, kusungunuka kwa madera ndi njira ya Bridgman.

Kusiyana pakati pa polysilicon ndi silicon monocrystalline kumawonekera makamaka muzinthu zakuthupi. Pankhani yamakina ndi magetsi, polysilicon ndi yotsika kuposa silicon ya monocrystalline. Polysilicon ingagwiritsidwe ntchito ngati zopangira pojambula silicon ya monocrystalline.

1. Pankhani ya anisotropy of mechanical properties, optical properties ndi matenthedwe katundu, ndizochepa kwambiri kuposa silicon monocrystalline.

2. Pankhani yamagetsi, mphamvu yamagetsi ya silicon ya polycrystalline ndi yofunika kwambiri kuposa ya silicon ya monocrystalline, kapena pafupifupi palibe magetsi.

3, pankhani ya mankhwala, kusiyana pakati pa awiriwa ndi kochepa kwambiri, nthawi zambiri amagwiritsa ntchito polysilicon kwambiri