Magnesium Silicide, Mg2Si

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Magnesium Silicide, Mg2Si

ʻO Mg2Si wale nō ka mea paʻa paʻa o Mg Si binary ʻōnaehana. Loaʻa iā ia nā ʻano o ke kiko hoʻoheheʻe kiʻekiʻe, paakiki kiʻekiʻe a me ka modulus elima kiʻekiʻe. ʻO ia kahi kaha kaha kaha n-type semiconductor material. Loaʻa iā ia nā mea noi noi nui i nā pono optoelectronic, nā pono uila, nā pono ikehu, ka laser, ka hana semiconductor, ke kamaʻilio ʻana o ka mahana a me nā ʻano ʻē aʻe.


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ʻO ka inoa Pākē magnesium silicide
Pelekane inoa: magnesium silicon
ʻIʻike ʻia hoʻi me ke kumu metala
Hoʻohālikelike kemika mg Ψ Si
ʻO ke kaumaha o ka mole mole 76.71 CAS
Helu komo 22831-39-6
Kahi hoʻoheheʻe 1102 ℃
Hoʻokomo ʻole ʻia i ka wai a ʻoi aku ka nui ma mua o ka wai
Ka nui: 1.94g / cm
Noi: ʻO Mg2Si wale nō ka mea paʻa paʻa o Mg Si binary ʻōnaehana. Loaʻa iā ia nā ʻano o ke kiko hoʻoheheʻe kiʻekiʻe, paakiki kiʻekiʻe a me ka modulus elima kiʻekiʻe. ʻO ia kahi kaha kaha kaha n-type semiconductor material. Loaʻa iā ia nā mea noi noi nui i nā pono optoelectronic, nā pono uila, nā pono ikehu, ka laser, ka hana semiconductor, ke kamaʻilio ʻana o ka mahana a me nā ʻano ʻē aʻe.
ʻO ka magnesium silicide (Mg2Si) kahi semiconductor kuhikuhi ʻole me ka hakahaka o ka band. I kēia manawa, hoʻokumu ʻia ka ʻoihana microelectronics ma nā mea Si. ʻO ke kaʻina o ka hoʻoulu ʻana i ke kiʻi ʻoniʻoni ʻo Mg2Si ma Si substrate e kūlike me ke kaʻina Si. No laila, he waiwai noiʻi maikaʻi kā Mg2Si / Si Heterojunction. I loko o kēia pepa, hoʻomākaukau ʻia nā kiʻi ʻoniʻoni lahilahi Mg2Si lahilahi ma luna o Si substrate a me ka mea hoʻoheheʻe ʻia e ka magnetron sputtering. Ua aʻo ʻia ka hopena o ka sputtering mg mānoanoa kiʻiʻoniʻoni i ka maikaʻi o nā kiʻi ʻoniʻoni Mg2Si. Ma kēia kumu, ua aʻo ʻia ka ʻenehana hoʻomākaukau o Mg2Si e pili ana i nā hāmeʻa heterojunction LED, a ua hoʻopaʻa ʻia nā uila a me nā pono opua o nā kiʻi ʻoniʻoni lahilahi Mg2Si. ʻO ka mea mua, waiho ʻia nā kiʻi ʻoniʻoni Mg ma luna o Si substrates e ka magnetron sputtering i ka mahana wela, waiho ʻia nā kiʻi ʻoniʻoni a me nā kiʻi Mg ma nā substrates aniani insulate, a laila hoʻomākaukau ʻia nā kiʻi ʻoniʻoni ʻo Mg2Si e ka hoʻomaʻamaʻa wela ʻana i ka hakahaka haʻahaʻa (10-1pa-10-2pa). Hōʻike nā hopena o XRD a me SEM i ka manawa hoʻokahi Mg2Si kiʻi ʻoniʻoni i hoʻomākaukau ʻia e ka hoʻopili ʻana ma 400 ℃ no 4h, a ʻo ka mea i hoʻomākaukau ʻia ʻo Mg2Si lahilahi i loaʻa i nā hua palaoa, kūlike a me ka hoʻomau mau, ka ʻalalā a me ka crystallinity maikaʻi. ʻO ka lua, ka hopena o ka mānoanoa o ke kiʻi Mg i ka ulu ʻana o ke kiʻi semiconductor Mg2Si a me ka pilina ma waena o ka mānoanoa o ke kiʻi ʻoniʻoni Mg a me ka mānoanoa o ke kiʻi Mg2Si ma hope o ka hoʻopaʻa ʻia ʻana o ka hoʻohui ʻāina. Hōʻike nā hopena i ka manawa o ka mānoanoa o ka kiʻi Mg 2.52 μ m a me 2.72 μ m, hōʻike ia i ka crystallinity maikaʻi a me ka pālahalaha. Hoʻonui ka mānoanoa o ke kiʻi ʻoniʻoni Mg2Si me ka hoʻonui ʻana o ka mānoanoa Mg, ma kahi o 0.9-1.1 mau manawa o kēlā o Mg. E hana nui kēia haʻawina i ke alakaʻi ʻana i ka hoʻolālā ʻana o nā hāmeʻa e pili ana i nā kiʻi lahilahi Mg2Si. ʻO ka mea hope loa, ua hoʻopaʻa ʻia ka hana ʻana o Mg2Si i hoʻokumu ʻia i nā hāmama heterojunction māmā. Hana ʻia nā hāmeʻa Mg2Si / Si a me Si / Mg2Si / Si Heterojunction ma luna o Si substrate.

Ke aʻo ʻia nei nā pono uila a me nā pono opua o Mg2Si / Si a me Si / Mg2Si / Si eter ma o nā ʻōnaehana ʻehā probetest, anamanaʻo semiconductor ʻano a me ka spectrometer paʻa / neʻe mau o ka fluorescence. Hōʻike nā hualoaʻa: ʻo ka resistivity a me ke pale pale o Mg2Si ʻoniʻoni lahilahi e hoʻemi me ka hoʻonui ʻana o ka mānoanoa Mg2Si; Hōʻike ʻo Mg2Si / Si a me Si / Mg2Si / Si heterostruktur i nā ʻano conduction maikaʻi maikaʻi, a me ka uila o Si / Mg2Si / Si pālua heterostructure ʻenehana ma kahi o 3 V; ʻo ka ikaika o ka photoluminescence o Mg2Si / n-Si heterojunction mea kiʻekiʻe loa ke lōʻihi ka lōʻihi o ka 1346 nm. Ke 1346 nm ka nalu, ʻo ka photoluminescence intensity o Mg2Si ʻoniʻoni lahilahi i hoʻomākaukau ʻia ma nā substrates insulate ka mea kiʻekiʻe loa; hoʻohālikelike ʻia me ka photoluminescence o Mg2Si ʻoniʻoni lahilahi i hoʻomākaukau ʻia ma nā substrates like ʻole, nā kiʻi ʻoniʻoni Mg2Si i hoʻomākaukau ʻia ma ka substrate quartz kiʻekiʻe kiʻekiʻe i loaʻa ka luminescence maikaʻi a me nā ʻano luminescence infrared monochromatic.


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