Ofufuza apanga ndikuwonetsa zowunikira zatsopano zobiriwira zomwe zimamveka bwino komanso zimagwirizana ndi njira zopangira CMOS. Kuphatikizira ma photodetectors atsopanowa mu masensa azithunzi osakanizidwa a silicone kungakhale kothandiza pamapulogalamu ambiri. Mapulogalamuwa akuphatikiza kuwunika kwa kugunda kwamtima motengera kuwala, kuzindikira zala zala ndi zida zomwe zimazindikira kukhalapo kwa zinthu zapafupi.
Kaya amagwiritsidwa ntchito m'mafoni a m'manja kapena makamera asayansi, masensa ambiri oyerekeza masiku ano amatengera ukadaulo wa CMOS ndi ma inorganic photodetectors omwe amasintha ma siginecha a kuwala kukhala ma siginecha amagetsi. Ngakhale ma photodetectors opangidwa ndi zinthu zachilengedwe akukopa chidwi chifukwa amathandizira kuti azitha kumva bwino, mpaka pano zakhala zovuta kupanga ma organic photodetectors apamwamba kwambiri.
Sungjun Park, yemwenso ndi mtsogoleri wofufuza, wa ku yunivesite ya Ajou ku South Korea, anati: “Kuphatikizira zinthu zodziwira zithunzi za organic m’masensa a CMOS opangidwa mochuluka kumafuna zoyamwitsa zopepuka zomwe zimakhala zosavuta kupanga pamlingo waukulu komanso zomwe zimatha kuzindikira zithunzi zowoneka bwino kuti zipange zithunzi zakuthwa. pamtengo wapamwamba mumdima. Tapanga ma organic photodiodes owoneka bwino komanso obiriwira omwe amatha kukwaniritsa izi. ”
Ofufuzawo akufotokoza za organic photodetector yatsopano mu nyuzipepala ya Optica. Adapanganso kachipangizo koyerekeza ka RGB kaphatikizidwe kazithunzi kowoneka bwino kobiriwira pa silicon photodiode yokhala ndi zosefera zofiira ndi zabuluu.
Kyung-Bae Park, yemwe ndi mtsogoleri wa gulu lofufuza kuchokera ku Samsung Advanced Institute of Technology (SAIT) ku South Korea, adati: "Tithokoze chifukwa cha kukhazikitsidwa kwa hybrid organic buffer layer, wosanjikiza wonyezimira wobiriwira womwe umagwiritsidwa ntchito. m'masensa azithunzizi amachepetsa kwambiri kulankhulana pakati pa ma pixel amitundu yosiyanasiyana, ndipo mapangidwe atsopanowa angapangitse ma photodiode apamwamba kwambiri kukhala chigawo chachikulu cha ma module amajambula ndi ma photosensor pazogwiritsa ntchito zosiyanasiyana."
Zambiri zothandiza organic photodetectors
Zinthu zambiri za organic sizoyenera kupanga zochuluka chifukwa cha chidwi chawo ndi kutentha. Mwina sangathe kupirira kutentha kwakukulu komwe kumagwiritsidwa ntchito pambuyo pa chithandizo kapena kukhala osakhazikika akagwiritsidwa ntchito pa kutentha kwapakati kwa nthawi yaitali. Pofuna kuthana ndi vutoli, asayansi amayang'ana kwambiri pakusintha malo otchinga a photodetector kuti azitha kukhazikika, kuchita bwino, komanso kuzindikira. Kuzindikira ndikuyezera momwe sensor imatha kuzindikira zofooka. "Tidayambitsa mzere wamkuwa wosambira (BCP): C60 hybrid buffer wosanjikiza ngati electron transport layer, yomwe imapatsa organic photodetector katundu wapadera, kuphatikiza magwiridwe antchito apamwamba komanso otsika kwambiri akuda, omwe amachepetsa phokoso," akutero Sungjun Park. Photodetector ikhoza kuyikidwa pa silicon photodiode yokhala ndi zosefera zofiira ndi zabuluu kuti apange sensor yazithunzi zosakanizidwa.
Ofufuzawo akuwonetsa kuti chithunzithunzi chatsopanochi chikuwonetsa mitengo yodziwika yofananira ndi ma silicon photodiodes wamba. Chowunikiracho chinagwira ntchito mokhazikika kwa maola awiri pa kutentha pamwamba pa 150 ° C ndipo chinasonyeza kukhazikika kwa nthawi yayitali kwa masiku 30 pa 85 ° C. Ma photodetectors awa amasonyezanso ntchito yabwino yamtundu.
Kenako, akukonzekera kusintha ma sensor atsopano ndi ma sensor azithunzi osakanizidwa kuti agwiritse ntchito mosiyanasiyana, monga masensa am'manja ndi ovala (kuphatikiza ma sensor azithunzi a CMOS), masensa oyandikira, ndi zida zala zala zomwe zikuwonetsedwa.
Nthawi yotumiza: Jul-07-2023