Silicide ea Magnesiamo, Mg2Si

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Silicide ea Magnesiamo, Mg2Si

Mg2Si ke eona feela kompone e tsitsitseng ea sistimi ea Mg Si. E na le litšobotsi tsa ntlha e phahameng ea ho qhibiliha, ho thatafala ho phahameng le modulus e phahameng ea elastic. Ke lesela le moqotetsane la mofuta oa semiconductor. E na le tebello ea bohlokoa ea ts'ebeliso ho lisebelisoa tsa motlakase, lisebelisoa tsa elektroniki, lisebelisoa tsa matla, laser, tlhahiso ea semiconductor, puisano ea taolo ea mocheso khafetsa le likarolo tse ling.


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Lebitso la China la magnesium silicide
Lebitso la Senyesemane: magnesium silicon
E tsejoa hape e le motheo oa tšepe
Mokelikeli oa lik'hemik'hale mg-Si
Boima ba limolek'hule ke 76.71 CAS
Nomoro ea kamohelo 22831-39-6
Qhibiliha ntlha 1102 ℃
Ha e kenelle ka metsing ebile e tebile ho feta metsi
Boikarabello: 1.94g / cm
Kopo: Mg2Si ke eona feela kompone e tsitsitseng ea Mg Si binary system. E na le litšobotsi tsa ntlha e phahameng ea ho qhibiliha, ho thatafala ho phahameng le modulus e phahameng ea elastic. Ke lesela le moqotetsane la mofuta oa semiconductor. E na le tebello ea bohlokoa ea ts'ebeliso ho lisebelisoa tsa motlakase, lisebelisoa tsa elektroniki, lisebelisoa tsa matla, laser, tlhahiso ea semiconductor, puisano ea taolo ea mocheso khafetsa le likarolo tse ling.
Magnesium silicide (Mg2Si) ke semiconductor e sa tobang e nang le lekhalo le lenyane la sehlopha. Hajoale, indasteri ea microelectronics e thehiloe haholo ho lisebelisoa tsa Si. Ts'ebetso ea ho holisa filimi e tšesaane ea Mg2Si ho Si substrate e tsamaellana le ts'ebetso ea Si. Ka hona, sebopeho sa Mg2Si / Si Heterojunction se na le boleng bo bongata ba lipatlisiso. Leqepheng lena, lifilimi tse tšesaane tsa tikoloho tsa Mg2Si li ile tsa hlophisoa ho Si substrate le ho sutumetsa substrate ka magnetron sputtering. Ho ile ha ithutoa sephetho sa botenya ba filimi ea mg ea boleng ba lifilimi tse tšesaane tsa Mg2Si. Motheong ona, theknoloji ea boitokisetso ea lisebelisoa tsa LED tsa heterojunction tsa Mg2Si e ile ea ithutoa, 'me ho ile ha ithutoa thepa ea motlakase le khanya ea lifilimi tse tšesaane tsa Mg2Si. Taba ea mantlha, lifilimi tsa Mg li ne li kentsoe ka litulong tsa Si ka makenete a magnetron mocheso oa mohatsela, lifilimi tsa Si le lifilimi tsa Mg li ne li behiloe ho li-substrates tsa khalase, ebe lifilimi tsa Mg2Si li lokisoa ke kalafo ea mocheso ka vacuum e tlase (10-1pa-10-2pa). Liphetho tsa XRD le SEM li bonts'a hore karolo e le 'ngoe ea filimi e tšesaane ea Mg2Si e hlophisitsoe ka ho kenyelletsa 400 ℃ bakeng sa 4h, mme filimi e tšesaane ea Mg2Si e na le lithollo tse teteaneng, tse ts'oanang le tse tsoelang pele, bokaholimo bo boreleli le khanya e ntle. Taba ea bobeli, phello ea botenya ba filimi ea Mg ka kholo ea filimi ea Mg2Si semiconductor le kamano lipakeng tsa botenya ba filimi ea Mg le botenya ba filimi ea Mg2Si kamora ho koaloa. Liphetho li bonts'a hore ha botenya ba filimi ea Mg e le 2.52 μ m le 2.72 μ m, e bonts'a khanya e hlakileng le ho ba bonolo. Botenya ba filimi ea Mg2Si bo eketseha ka keketseho ea botenya ba Mg, e ka bang makhetlo a 0.9-1.1 ho feta a Mg. Boithuto bona bo tla bapala karolo ea bohlokoa ho tataiseng moralo oa lisebelisoa tse ipapisitseng le lifilimi tse tšesaane tsa Mg2Si. Kamora nako, boithuto ba lisebelisoa tse hlahisang khanya ea heterojunction tsa Mg2Si bo a ithutoa. Lisebelisoa tsa LED tsa Mg2Si / Si le Si / Mg2Si / Si Heterojunction li entsoe ka Si substrate.

Thepa le motlakase oa Mg2Si / Si le Si / Mg2Si / Si heterostructures li ithutoa ka sistimi e 'ne ea li-probetest, semiconductor sebali se hlahlobang le ts'ebetso e tsitsitseng / e fetang ea fluorescence. Liphetho li bonts'a hore: resistivity le sheet sheet ea Mg2Si tšesaane lifilimi lia fokotseha ka keketseho ea botenya ba Mg2Si; Mg2Si / Si le Si / Mg2Si / Si heterostructures e bonts'a litšobotsi tse ntle tsa unctionirectional conduction, 'me matla a Si / Mg2Si / Si a habeli a heterostructure a ka ba 3 V; matla a photoluminescence a sesebelisoa sa heterojunction ea Mg2Si / n-Si ke a phahameng ka ho fetisisa ha bokahohle bo le 1346 nm. Ha bokahohle bo le 1346 nm, matla a photoluminescence a lifilimi tse tšesaane tsa Mg2Si tse lokiselitsoeng ho li-substrate tse sirelletsang ke tsona tse phahameng ka ho fetisisa; ha e bapisoa le photoluminescence ea Mg2Si lifilimi tse tšesaane tse lokiselitsoeng litsing tse fapaneng, lifilimi tsa Mg2Si tse lokiselitsoeng karolong e phahameng ea quartz e na le ts'ebetso e ntle ea khanya le infrared monochromatic luminescence.


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