SiGe powder, obeye aziwe njengoi-silicon germanium powder, ukwaziswa okuthole ukunakwa okukhulu emkhakheni wobuchwepheshe be-semiconductor.Lesi sihloko sihlose ukukhombisa ukuthi kunganiSiGeisetshenziswa kabanzi ezinhlelweni ezahlukahlukene futhi ihlola izakhiwo zayo eziyingqayizivele kanye nezinzuzo.
I-silicon germanium powderiyinhlanganisela yezinto ezakhiwe nge-silicon nama-athomu e-germanium.Inhlanganisela yalezi zakhi ezimbili idala into enezici eziphawulekayo ezingatholakali ku-silicon ehlanzekile noma i-germanium.Esinye sezizathu eziyinhloko zokusebenzisaSiGeukuhambisana kwayo okuhle kakhulu nobuchwepheshe obusekelwe ku-silicon.
UkuhlanganisaSiGekumadivayisi asekelwe ku-silicon inikeza izinzuzo eziningana.Enye yezinzuzo eziyinhloko ikhono layo lokushintsha izakhiwo zikagesi ze-silicon, ngaleyo ndlela ithuthukise ukusebenza kwezingxenye ze-elekthronikhi.Uma kuqhathaniswa ne-silicon,SiGeine-electron ephakeme kanye nokuhamba kwezimbobo, okuvumela ukuthuthwa kwe-electron ngokushesha kanye nesivinini esikhulayo sedivayisi.Lesi sakhiwo sizuzisa kakhulu izinhlelo zokusebenza zemvamisa ephezulu, njengezinhlelo zokuxhumana ezingenantambo namasekhethi ahlanganisiwe anesivinini esikhulu.
Ngaphezu kwalokho,SiGeinegebe eliphansi lebhande kune-silicon, elivumela ukuthi limunce futhi likhiphe ukukhanya ngokuphumelelayo.Lesi sakhiwo sikwenza kube yinto ebalulekile kumadivayisi we-optoelectronic afana nama-photodetectors nama-light-emitting diode (ama-LED).SiGefuthi ine-thermal conductivity enhle kakhulu, eyivumela ukuthi ikhiphe ukushisa kahle, iyenze ilungele amadivayisi adinga ukuphathwa okushisayo okusebenzayo.
Esinye isizathuSiGeUkusetshenziswa okusabalele ukuhambisana kwayo nezinqubo ezikhona zokukhiqiza i-silicon.SiGe powderingaxutshwa kalula ne-silicon bese ifakwa ku-silicon substrate kusetshenziswa amasu ajwayelekile okukhiqiza ama-semiconductor afana ne-chemical vapor deposition (CVD) noma i-molecular beam epitaxy (MBE).Lokhu kuhlanganiswa okungenamthungo kukwenza kungabizi kakhulu futhi kuqinisekisa ukuguquguquka okushelelayo kubakhiqizi asebevele sebesungule izindawo zokukhiqiza ezisekelwe ku-silicon.
SiGe powderingakha futhi i-silicon ehlutshiwe.I-Strain idalwe kungqimba lwe-silicon ngokufaka ungqimba oluncane lweSiGephezu kwe-silicon substrate bese ususa ngokukhetha ama-athomu e-germanium.Lolu hlobo lushintsha ukwakheka kwebhendi ye-silicon, kuthuthukise izici zayo zikagesi.I-silicon egxilile isiyingxenye ebalulekile kuma-transistors asebenza kahle kakhulu, evumela isivinini sokushintsha ngokushesha kanye nokusetshenziswa kwamandla okuphansi.
Ngaphezu kwalokho,SiGe powderinezinhlobonhlobo zokusetshenziswa emkhakheni wamadivayisi we-thermoelectric.Imishini kagesi eshisayo iguqula ukushisa kube ugesi futhi ngokuphambene nalokho, okuyenza ibaluleke kakhulu ezinhlelweni ezifana nokuphehla amandla kanye nezinhlelo zokupholisa.SiGeine-conductivity ephezulu ye-thermal kanye nezakhiwo zikagesi eziguqulekayo, ihlinzeka ngezinto ezifanele zokuthuthukiswa kwamadivayisi asebenza kahle ka-thermoelectric.
Ekuphetheni,SiGe powder or i-silicon germanium powderinezinzuzo ezihlukahlukene kanye nokusetshenziswa emkhakheni wobuchwepheshe be-semiconductor.Ukuhambisana kwayo nezinqubo ze-silicon ezikhona, izakhiwo ezinhle kakhulu zikagesi kanye ne-thermal conductivity kwenza kube yinto ethandwayo.Ukuthi kuthuthukisa ukusebenza kwamasekethe ahlanganisiwe, ukuthuthukisa amadivaysi e-optoelectronic, noma ukudala amadivaysi e-thermoelectric asebenzayo,SiGeiyaqhubeka nokufakazela ukubaluleka kwayo njengento esebenza ngezinto eziningi.Njengoba ucwaningo nobuchwepheshe buqhubeka nokuthuthuka, silindeleSiGe powdersukudlala indima ebaluleke nakakhulu ekulolongeni ikusasa lamadivayisi we-semiconductor.
Isikhathi sokuthumela: Nov-03-2023