Gawo la PMN-PT
Kufotokozera
Krustalo ya PMN-PT imadziwika chifukwa champhamvu kwambiri yolumikizira ma electromechanical coefficient, high piezoelectric coefficient, high strain and low dielectric loss.
Katundu
| Chemical Composition | ( PbMg 0.33 Nb 0.67)1-x: (PbTiO3)x |
| Kapangidwe | R3m, Rhombohedral |
| Latisi | 0 ~ 4.024 Å |
| Melting Point (℃) | 1280 |
| Kachulukidwe (g/cm3) | 8.1 |
| Piezoelectric Coefficient d33 | >2000 pC/N |
| Kutayika kwa Dielectric | kukula <0.9 |
| Kupanga | pafupi ndi malire a gawo la morphotropic |
PMN-PT Substrate Tanthauzo
Gawo lapansi la PMN-PT limatanthawuza filimu yopyapyala yopangidwa ndi zinthu za piezoelectric PMN-PT.Imagwira ngati maziko othandizira kapena maziko a zida zosiyanasiyana zamagetsi kapena optoelectronic.
Pankhani ya PMN-PT, gawo lapansi nthawi zambiri limakhala lathyathyathya lolimba pomwe zigawo zoonda kapena zomanga zimatha kukulitsidwa kapena kuikidwa.Magawo a PMN-PT amagwiritsidwa ntchito popanga zida monga ma sensor a piezoelectric, actuators, transducers, ndi zokolola mphamvu.
Magawo awa amapereka nsanja yokhazikika ya kukula kapena kuyika kwa zigawo zowonjezera kapena mapangidwe, zomwe zimapangitsa kuti piezoelectric katundu wa PMN-PT agwirizane ndi zipangizo.Filimu yopyapyala kapena yopyapyala ya ma substrates a PMN-PT imatha kupanga zida zowoneka bwino komanso zogwira mtima zomwe zimapindula ndi zinthu zabwino kwambiri za piezoelectric.
Zogwirizana nazo
Kufananiza kwa lattice kumatanthauza kuyanjanitsa kapena kufananiza kwa ma latisi pakati pa zida ziwiri zosiyana.Pankhani ya MCT (mercury cadmium telluride) semiconductors, kufananitsa kwa lattice kwapamwamba ndikofunikira chifukwa kumalola kukula kwa zigawo za epitaxial zapamwamba, zopanda chilema.
MCT ndi chinthu chophatikizika cha semiconductor chomwe chimagwiritsidwa ntchito kwambiri muzowunikira za infrared ndi zida zojambulira.Kuti muwonjezere magwiridwe antchito a chipangizocho, ndikofunikira kukulitsa zigawo za MCT za epitaxial zomwe zimafanana kwambiri ndi latisi la zinthu zapansi panthaka (nthawi zambiri CdZnTe kapena GaAs).
Pokwaniritsa mafananidwe apamwamba a lattice, kulumikizana kwa kristalo pakati pa zigawo kumakhala bwino, ndipo zolakwika ndi zovuta pamawonekedwe zimachepetsedwa.Izi zimabweretsa kukongola kwa kristalo, kusinthika kwamagetsi ndi kuwala, komanso magwiridwe antchito a chipangizocho.
Kufananiza kwa latisi yayikulu ndikofunikira pamapulogalamu monga kujambula ndi kuzindikira kwa infrared, pomwe ngakhale zolakwika zazing'ono kapena zolakwika zimatha kutsitsa magwiridwe antchito a chipangizocho, zomwe zimakhudza zinthu monga kukhudzika, kusintha kwa malo, ndi chiŵerengero cha ma signal-to-phokoso.
