Izakhiwo zomzimba namakhemikhali ze-polyilicon

i-polysilicon inokucwebezela kwensimbi empunga kanye nokuminyana okungu-2.32~2.34g/cm3. Iphuzu elincibilikayo 1410℃. Iphuzu lokubilisa 2355℃. Incibilika ngengxube ye-hydrofluoric acid ne-nitric acid, engancibiliki emanzini, i-nitric acid ne-hydrochloric acid. Ukuqina kwayo kuphakathi kokwe-germanium ne-quartz. Iba brittle ekamelweni lokushisa futhi iphuka kalula uma isikiwe. Iba yi-ductile uma ishisiswe ibe ngaphezu kuka-800℃, futhi ikhombisa ukuguqulwa okusobala ku-1300℃. Ayisebenzi ekamelweni lokushisa futhi ihlangana nomoya-mpilo, i-nitrogen, isulfure, njll. emazingeni okushisa aphezulu. Esimeni esincibilikisiwe sokushisa okuphezulu, inomsebenzi omkhulu wamakhemikhali futhi ingasabela cishe nganoma iyiphi into. Inezici ze-semiconductor futhi iyinto ebaluleke kakhulu futhi enhle kakhulu ye-semiconductor, kodwa ukulandelela amanani okungcola kungathinta kakhulu ukusebenza kwayo. Isetshenziswa kakhulu embonini ye-elekthronikhi njengento eyisisekelo yokukhiqiza imisakazo ye-semiconductor, ama-tape recorders, amafriji, ama-TV anemibala, amarekhodi evidiyo, namakhompyutha kagesi. Itholakala ngokufaka i-chlorine eyomile ye-silicon powder kanye negesi eyomile ye-hydrogen chloride ngaphansi kwezimo ezithile, bese i-condensing, i-distilling, futhi inciphise.

i-polysilicon ingasetshenziswa njengento eluhlaza yokudonsa i-silicon eyodwa ye-crystal. Umehluko phakathi kwe-polysilicon ne-silicon eyodwa ye-crystal ubonakala ikakhulukazi ezintweni ezibonakalayo. Isibonelo, i-anisotropy yezakhiwo zemishini, izakhiwo ze-optical kanye nezakhiwo ezishisayo azibonakali kakhulu kune-silicon eyodwa ye-crystal; mayelana nezakhiwo zikagesi, ukuqhutshwa kwamakristalu e-polysilicon nakho akubalulekile kakhulu kunalokho kwe-silicon eyodwa ye-crystal, futhi ayinakho ngisho nokuhamba. Mayelana nomsebenzi wamakhemikhali, umehluko phakathi kwalokhu kokubili mncane kakhulu. i-polysilicon kanye ne-silicon eyodwa ye-crystal ingahlukaniswa komunye nomunye ngokubukeka, kodwa ukuhlonza kwangempela kufanele kunqunywe ngokuhlaziya isiqondiso sendiza yekristalu, uhlobo lwe-conductivity kanye nokumelana kwekristalu. i-polysilicon iwukusetshenziswa okuqondile okusetshenziselwa ukukhiqizwa kwe-silicon eyodwa yekristalu, futhi iyisisekelo semininingwane ye-elekthronikhi yamadivayisi wesimanje we-semiconductor afana nobuhlakani bokwenziwa, ukulawula okuzenzakalelayo, ukucutshungulwa kolwazi, nokuguqulwa kwesithombe sikagesi.