Sawir-qaade cusub oo dareen sare leh

Sawir-qaade cusub oo dareen sare leh

Dhawaan, koox cilmi-baaris ah oo ka tirsan Akadeemiyada Sayniska Shiinaha (CAS) oo ku salaysan polycrystalline gallium-rich Gallium oxide Materials (PGR-GaOX) ayaa soo jeediyay markii ugu horeysay istaraatiijiyad naqshadeed cusub oo loogu talagalay dareenka sare iyo xawaaraha sare ee xawaaraha sare ee sawir-qaade iyada oo loo marayo interface pyroelectric oo isku xiran. iyo saamaynta sawir-qaadista, cilmi-baadhistii la xidhiidhayna waxaa lagu daabacay agabyo horumarsan. Qalabka korantada ee tamarta sare leh (oo loogu talagalay ultraviolet qoto dheer (DUV) ilaa xargaha raajada) ayaa muhiim u ah dhinacyo kala duwan, oo ay ku jiraan amniga qaranka, daawada, iyo sayniska warshadaha.

Si kastaba ha ahaatee, qalabka semiconductor ee hadda jira sida Si iyo α-Se waxay leeyihiin dhibaatooyinka qulqulka weyn ee hadda jira iyo kuwa hooseeya ee nuugista raajada, taas oo ay adag tahay in la daboolo baahiyaha ogaanshaha waxqabadka sare. Taas bedelkeeda, farqiga ballaadhan (WBG) semiconductor gallium oxide walxaha ayaa muujinaya karti weyn oo loogu talagalay ogaanshaha sawir-qaadista tamarta sare. Si kastaba ha ahaatee, sababtoo ah dabinka heerka qoto dheer ee lama huraanka ah ee dhinaca alaabta iyo la'aanta naqshad wax ku ool ah oo ku saabsan qaab dhismeedka qalabka, way adagtahay in la ogaado dareenka sare iyo xawaaraha sare ee jawaab-celinta sare ee tamarta tamarta sare ee ku salaysan semiconductors farqiga ballaaran. Si wax looga qabto caqabadahan, koox cilmi-baaris ah oo Shiinaha ayaa nashqadeeyay diode kondhomeedka korantada (PPD) oo ku salaysan PGR-GaOX markii ugu horreysay. Marka la isku daro saamaynta pyroelectric interface ee saamaynta sawir-qaadista, waxqabadka ogaanshaha ayaa si weyn loo hagaajiyay. PPD waxay muujisay dareen sare oo labada DUV iyo raajada, iyadoo heerka jawaab celinta ilaa 104A/W iyo 105μC × Gyair-1/cm2, siday u kala horreeyaan, in ka badan 100 jeer ka sarreeya qalabka hore ee ka samaysan walxaha la midka ah. Intaa waxaa dheer, saameynta pyroelectric interface ee ay sababtay astaanta polar ee gobolka dhimista ee PGR-GaOX waxay kordhin kartaa xawaaraha jawaabta qalabka 105 jeer ilaa 0.1ms. Marka la barbar dhigo photodiodes-ka caadiga ah, qaabka is-awooda PPDS waxay soo saartaa faa'iidooyin sare sababtoo ah beeraha pyroelectric inta lagu jiro beddelka iftiinka.

Intaa waxaa dheer, PPD waxay ku shaqeyn kartaa qaab eex ah, halkaasoo faa'iidada ay aad ugu tiirsan tahay danabka eexda, faa'iidada aadka u sarreeyana waxaa lagu gaari karaa iyada oo la kordhinayo tamarta eexda. PPD waxay leedahay awood codsi oo aad u wanaagsan isticmaalka tamarta hoose iyo hababka kor u qaadida sawirka dareenka sare. Shaqadani ma aha oo kaliya in ay caddaynayso in GaOX ay tahay qalab sawir-qaade tamarta sare leh, laakiin sidoo kale waxay bixisaa istaraatiijiyad cusub oo lagu xaqiijinayo waxqabadka sare ee sawir-qaadayaasha tamarta sare.