I-PMN-PT Substrate
Incazelo
Ikristalu ye-PMN-PT yaziwa nge-coefficient yayo ephezulu kakhulu yokuhlanganisa i-electromechanical, i-piezoelectric coefficient ephezulu, ingcindezi ephezulu kanye nokulahlekelwa okuphansi kwe-dielectric.
Izakhiwo
| Ukwakheka Kwamakhemikhali | ( PbMg 0.33 Nb 0.67)1-x: (PbTiO3)x |
| Isakhiwo | R3m, Rhombohedral |
| I-Lattice | A0 ~ 4.024Å |
| I-Melting Point (℃) | 1280 |
| Ukuminyana (g/cm3) | 8.1 |
| I-Piezoelectric Coefficient d33 | >2000 pC/N |
| Ukulahlekelwa Kwe-Dielectric | futhi <0.9 |
| Ukwakheka | eduze komngcele wesigaba se-morphotropic |
PMN-PT Substrate Definition
I-PMN-PT substrate isho ifilimu elincanyana noma i-wafer eyenziwe ngempahla ye-piezoelectric PMN-PT.Isebenza njengesisekelo esisekelayo noma isisekelo samadivayisi ahlukahlukene we-elekthronikhi noma we-optoelectronic.
Kumongo we-PMN-PT, i-substrate ngokuvamile iyindawo eyisicaba eqinile lapho izingqimba ezincane noma izakhiwo zingakhuliswa noma zifakwe khona.Ama-substrates e-PMN-PT ajwayele ukusetshenziselwa ukwenza amadivayisi afana nezinzwa ze-piezoelectric, ama-actuator, ama-transducer, nezivuni zamandla.
Lawa ma-substrates ahlinzeka ngenkundla ezinzile yokukhula noma ukufakwa kwezingqimba ezengeziwe noma izakhiwo, okuvumela izici ze-piezoelectric ze-PMN-PT ukuthi zihlanganiswe kumadivayisi.Ifilimu elincanyana noma ifomu le-wafer lama-substrates e-PMN-PT lingakha amadivayisi ahlangene futhi asebenza kahle ahlomula ezintweni ezinhle kakhulu ze-piezoelectric.
Imikhiqizo Ehlobene
Ukumatanisa kwe-lattice ephezulu kubhekisela ekuhleleni noma ekufanisweni kwezakhiwo ze-lattice phakathi kwezinto ezimbili ezihlukene.Kumongo we-MCT (mercury cadmium telluride) semiconductors, ukufaniswa kwe-lattice okuphezulu kuyafiseleka ngoba kuvumela ukukhula kwezingqimba ze-epitaxial zekhwalithi ephezulu, ezingenasici.
I-MCT yinto ehlanganisiwe ye-semiconductor evame ukusetshenziswa kuzitholi ze-infrared namadivayisi wokucabanga.Ukuze ukhulise ukusebenza kwedivayisi, kubalulekile ukukhulisa izendlalelo ze-MCT ze-epitaxial ezicishe zifane nesakhiwo se-lattice se-substrate material (imvamisa i-CdZnTe noma i-GaAs).
Ngokufinyelela ukufanisa okuphezulu kwe-lattice, ukuqondanisa kwekristalu phakathi kwezendlalelo kuyathuthukiswa, futhi amaphutha nokucindezeleka kusixhumi esibonakalayo kuyehla.Lokhu kuholela kukhwalithi engcono yekristalu, izici ezithuthukisiwe zikagesi nezokubona, nokusebenza kwedivayisi okuthuthukisiwe.
Ukufanisa i-lattice ephezulu kubalulekile ezinhlelweni zokusebenza ezifana ne-infrared imaging kanye nenzwa, lapho ngisho nokulimala okuncane noma ukungapheleli kungase kuthuntubeze ukusebenza kwedivayisi, kuthinte izici ezifana nokuzwela, ukulungiswa kwendawo, nesilinganiso sesignali-kuya-nomsindo.
