Zvinhu zvitsva zvakapfava uye zvakapfava zve semiconductor zvinogona kushandiswa kugadzira micro andzvishandiso zvemagetsi zve nano optoelectronic
maroperties, ukobvu hwema nanometer mashoma chete, hunhu hwakanaka hwe optical… Mutori wenhau akadzidza kubva kuNanjing University of Technology kuti boka rekutsvagisa repurofesa weDhipatimendi refizikisi rechikoro rakagadzira kristalo ye lead iodide ine mativi maviri yakatetepa kwazvo, uye kuburikidza nayo kuzadzisa kutonga kwehunhu hwe optical hwezvinhu zve transition metal sulfide zvine mativi maviri, izvo zvinopa pfungwa itsva yekugadzira masero ezuva uyephotodetectorsMhedzisiro yacho yakabudiswa mumagazini yazvino yepepanhau repasi rose rinonzi Advanced Materials.
"Mananosheets e lead iodide akatetepa kwazvo atagadzira kekutanga, izwi rehunyanzvi nderekuti 'makristaro ePbI2 akakora atomiki ane mativi maviri ePbI2', inova chinhu che semiconductor chakatetepa kwazvo chine ukobvu hwema nanometer mashoma chete." Sun Yan, munyori wekutanga wepepa iri uye ari kuda kuita dhigirii redhigirii paNanjing University of Technology, akati vakashandisa nzira yekugadzirisa kugadzira, iyo ine zvinodiwa zvishoma zvemidziyo uye ine mabhenefiti ekuti iri nyore, inokurumidza uye inoshanda, uye inogona kusangana nezvinodiwa zvekugadzirira zvinhu munzvimbo yakakura uye zvinobereka goho guru. Ma nanosheets e lead iodide akagadzirwa ane chimiro chetriangle kana hexagonal chakajairika, saizi yepakati yema microns matanhatu, nzvimbo yakatsetseka uye hunhu hwakanaka hwemaziso.
Vaongorori vakasanganisa iyi nanosheet yakatetepa kwazvo ye lead iodide ne two-dimensional transition metal sulfides, yakagadzirwa nemaoko, vakaiunganidza pamwe chete, uye vakawana mhando dzakasiyana dze heterojunctions, nekuti mazinga esimba akarongwa nenzira dzakasiyana, saka lead iodide inogona kuva nemigumisiro yakasiyana pakushanda kwe optical kwe two-dimensional transition metal sulfides. Chimiro ichi chebhendi chinogona kuvandudza kushanda kwe luminous, izvo zvinobatsira pakugadzirwa kwemidziyo yakaita se light-emitting diodes uye lasers, iyo inoshandiswa mu display ne lighting, uye inogona kushandiswa mumunda we photodetectors uyezvishandiso zve photovoltaic.
Kubudirira uku kunozadzisa kudzorwa kwehunhu hwe optical hwezvinhu zve transition metal sulfide zvine mativi maviri ne lead iodide yakatetepa zvakanyanya. Zvichienzaniswa nezvishandiso zve optoelectronic zvechinyakare zvakavakirwa pazvinhu zvakagadzirwa ne silicon, kubudirira uku kune hunhu hwekuchinjika, hudiki uye hudiki. Saka, kunogona kushandiswa pakugadzirira flexible uye integratedzvishandiso zvemagetsi zve optoelectronicIne mukana wakakura wekushandisa mumichina midiki neinano optoelectronic, uye inopa pfungwa itsva yekugadzira masero ezuva, ma photodetector nezvimwewo.
Nguva yekutumira: Gunyana-20-2023