Kashe Magnesium, Mg2Si

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Kashe Magnesium, Mg2Si

Mg2Si shine kawai tabbataccen mahaɗin tsarin Mg Si binary. Yana da halaye na babban narkewar narkewa, tsananin tauri da haɓakar roba mai ƙarfi. Isaramar ƙungiya ce ta n-nau'in semiconductor. Yana da mahimman aikace-aikacen aikace-aikace a cikin na'urorin optoelectronic, na'urorin lantarki, na'urorin makamashi, laser, masana'antar semiconductor, sadarwar sarrafa zafin jiki na yau da kullun da sauran fannoni.


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Sunan kasar Sin yana kashe silsilar magnesium
Sunan Turanci: magnesium silicon
Har ila yau an san shi azaman ƙarfe
Kayan sunadarai mg Ψ Si
Nauyin kwayoyin shine 76.71 CAS
Lambar shiga 22831-39-6
Makin narkewa 1102 ℃
Rashin narkewa cikin ruwa kuma yafi ruwa yawa
Yawa: 1.94g / cm
Aikace-aikace: Mg2Si ne kawai tabbataccen mahaɗin tsarin Mg Si binary. Yana da halaye na babban narkewar narkewa, tsananin tauri da haɓakar roba mai ƙarfi. Isaramar ƙungiya ce ta n-nau'in semiconductor. Yana da mahimman aikace-aikacen aikace-aikace a cikin na'urorin optoelectronic, na'urorin lantarki, na'urorin makamashi, laser, masana'antar semiconductor, sadarwar sarrafa zafin jiki na yau da kullun da sauran fannoni.
Magnesium silicide (Mg2Si) semiconductor ne kai tsaye ba tare da tazara ba. A halin yanzu, masana'antar lantarki da lantarki sun dogara ne da kayan Si. Tsarin girma fim na Mg2Si siriri akan sikan Si yana dacewa da tsarin Si. Saboda haka, tsarin Mg2Si / Si Heterojunction yana da darajar darajar bincike. A cikin wannan takarda, an shirya finafinan sihiri na Mg2Si masu saukin muhalli akan matattarar Si da murfin magnetron da ke motsawa. An yi nazari akan tasirin kaurin fim na MG akan ingancin finafinan Mg2Si siriri. A kan wannan tushen, aka yi nazarin fasahar shiri na na'urorin Mg2Si wanda ke da alaƙa da keɓaɓɓiyar LED, kuma an yi nazarin kimiyyar lantarki da kayan gani na Mg2Si ƙananan finafinan. Da fari dai, an saka fina-finai Mg a kan matatun Si ta hanyar magnetron da ke zafin zafin a dakin, fina-finan Si da fim na Mg an ajiye su a kan madarar gilashin gilashi, sannan kuma an shirya fina-finan Mg2Si ta hanyar maganin zafi a ƙarancin yanayi (10-1pa-10-2pa). Sakamakon XRD da SEM sun nuna cewa fim ɗin Mg2Si madaidaiciya fim an shirya shi ta haɗewa a 400 ℃ don 4h, kuma fim ɗin Mg2Si siriri yana da hatsi mai ɗimbin yawa, mai ɗimbin daidaito da ci gaba, shimfida mai santsi da kyakkyawan kristal. Abu na biyu, an yi nazarin tasirin kaurin Mg akan haɓakar Mg2Si semiconductor fim da alaƙar da ke tsakanin kaurin Mg fim da kaurin Mg2Si fim bayan annealing. Sakamakon ya nuna cewa lokacin da kaurin fim na Mg ya kai 2.52 μ m da 2.72 μ m, yana nuna kyakkyawan kristalness da flatness. Kaurin Mg2Si yana ƙaruwa tare da haɓakar Mg, wanda yake kusan sau 0.9-1.1 na na Mg. Wannan binciken zai taka muhimmiyar rawa wajen jagorantar tsara na'urori dangane da finafinan Mg2Si siriri. A ƙarshe, ana nazarin ƙirar na'urori masu fitar da haske na Mg2Si. Mg2Si / Si da Si / Mg2Si / Si Heterojunction LED na'urorin an ƙirƙira su akan Si substrate.

Kayan lantarki da na gani na Mg2Si / Si da Si / Mg2Si / Si heterostructures ana nazarin su ta hanyar tsarin probetest guda hudu, mai nazarin sifofin semiconductor da kuma tsayayyen / wucin gadi hasken rana spectrometer. Sakamakon ya nuna cewa: juriya da jakar takardar Mg2Si na bakin ciki fina-finai sun ragu tare da ƙaruwar kaurin Mg2Si; Mg2Si / Si da Si / Mg2Si / Si heterostructures suna nuna kyawawan halayen unidirectional conduction, kuma akan ƙarfin lantarki na Si / Mg2Si / Si tsarin heterostructure biyu yana da kusan 3 V; ƙarfin photoluminescence na na'urar Mg2Si / n-Si heterojunction shine mafi girma lokacin da ƙarfin nisan shine 1346 nm. Lokacin da zango yakai 1346 nm, ƙarfin tasirin hoto na Mg2Si siraran sirara waɗanda aka shirya akan abubuwan hana ruɓa shine mafi girma; idan aka kwatanta da hotunan hoto na Mg2Si siraran finafinai waɗanda aka shirya akan abubuwa daban-daban, finafinan Mg2Si waɗanda aka shirya akan ma'adini mai maɗaukaki masu tsayi suna da kyakkyawan yanayin haske da halayen infrared monochromatic luminescence.


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