Ucwaningo lwakamuva lweI-Avalanche PhotoDepector
Ubuchwepheshe bokutholwa kwe-infrared busetshenziswa kabanzi ekuqasheni amasosha, ukuqapha imvelo, ukuxilongwa kwezokwelapha kanye nezinye izinkambu. Imikhawulo yendabuko ye-infrared inemikhawulo yokusebenza, njengokuzwela kokutholwa, isivinini sokuphendula nokunye. Izinto ze-Inas / Inassb Class II superlattice (T2SL) izinto zinezakhiwo ezinhle kakhulu ze-PhotoElectric kanye nokwenza, zizenze zilungele ukutholwa okude kakhulu kwe-infrared (LWIR). Inkinga yokuphendula okubuthakathaka ekutholweni okuningana kwe-infrared dection kube ukukhathazeka isikhathi eside, okuvimbela kakhulu ukuthembeka kwezinhlelo zokusebenza zedivayisi ye-elekthronikhi. Yize i-avalanche photonet (I-PhotoDector ye-APD) Ukusebenza okuhle kakhulu kokuphendula, kuhlushwa okuphezulu okumnyama ngesikhathi sokuphindaphindeka.
Ukuxazulula lezi zinkinga, iqembu elivela e-University of Electronic Science and China selihlele ngempumelelo i-Avalanche PhotoDade ende (T2SL) I-Avalanche Photodiode (APD). Abaphenyi basebenzise isilinganiso se-Auger Rebur Reburction se-Intana / Intassb T2sl Absorber ungqimba ukunciphisa ubumnyama bamuva. Ngasikhathi sinye, i-Alassb enenani eliphansi le-K isetshenziswa njengongqimba oluphindaphindekayo ukucindezela umsindo wedivayisi ngenkathi kugcinwa inzuzo eyanele. Lo mklamo uhlinzeka ngesisombululo esithembisayo sokukhuthaza ukuthuthukiswa kobuchwepheshe obude bokutholwa kwe-infrared retch. Umtshina wamukela umklamo ovusiwe ovuthiwe, futhi ngokulungisa isilinganiso sokwakheka kwe-inas kanye ne-innassb, ukuguqulwa okubushelelezi kwesakhiwo seqembu kutholakala, futhi ukusebenza komtshina kuyathuthukiswa. Ngokuya ngenqubo yokukhethwa kwezinto ezibonakalayo kanye nokulungiselela, lolu cwaningo luchaza ngokuningiliziwe indlela yokukhula kanye nemingcele yenqubo ye-INAS / INANASB T2SL izinto ezisetshenziselwa ukulungiselela umtshina. Ukuthola ukwakheka nobukhulu be-Inas / Intassb T2SL kungukulungiswa okubucayi futhi kwepharamitha kuyadingeka ukufezekisa ibhalansi yokucindezela. Ngokwesimo sokutholwa kwe-infrared ende-wave, ukufezekisa i-wave-off-off-off-off afanay Kodwa-ke, i-monocycle emikhulu yehla ekwehleni kokuhlanganiswa kokukhula ohlangothini lokukhula nokwanda kwesisindo esisebenzayo sezimbobo ku-T2SL. Kutholakale ukuthi ukwengeza ingxenye ye-SB kungafinyelela isikhathi eside i-cutoff ye-cutoff ngaphandle kokukhulisa ubukhulu besikhathi esisodwa. Kodwa-ke, ukwakheka ngokweqile kwe-SB kungaholela ekuhlukaniseni kwezinto ze-SB.
Ngakho-ke, i-IAS / INAS0.5SB0.5 T2SL nge-SB Group 0.5 ikhethwe njengesendlalelo esisebenzayo se-APDI-PhotoDETETETETECETETET. I-INAS / INNASB T2SL ikakhulukazi ikhula ku-galb substrates, ngakho-ke indima yegesi ekuphathweni kwezitshalo idinga ukucatshangelwa. Empeleni, ukuzuza ukulingana kwe-strain kubandakanya ukuqhathanisa i-lattice ejwayelekile ye-superlattice isikhathi esisodwa kuya ku-lattrice njalo. Ngokuvamile, ubunzima be-tensile e-Inas bunxephezelwa yi-strain ecindezelwe owethulwe yi-insassb, okuholela engxenyeni enkulu ye-inas kunesendlalelo se-insassb. Lolu cwaningo lulinganise izici zokuphendula izithombe ze-avalanche photonet, kufaka phakathi impendulo yokubuka, emnyama yamanje, umsindo, njll. Umphumela wokuphindaphinda kwe-avalanche we-avalanche photodepector uyahlaziywa, kanye nobudlelwano phakathi kwesici sokuphindaphindeka kanye namandla okukhanya kwesigameko, izinga lokushisa namanye amapharamitha kuxoxwa.
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Isikhathi sePosi: Jan-06-2025