Iimathiriyeli ezithambileyo nezithambileyo zesemiconductor zingasetyenziselwa ukwenza i-micro kunyeizixhobo ze-nano optoelectronic
iiroperties, ubukhulu beenanometers ezimbalwa kuphela, iipropathi ezintle zamehlo... Intatheli ifunde kwiYunivesithi yaseNanjing yeTekhnoloji ukuba iqela lophando likanjingalwazi weSebe lefiziksi esikolweni lilungiselele ikristale eyodidi eyodidi eyodidi eyodidi oluphezulu ecwecwe kakhulu. , kwaye ngayo ukufezekisa ukulawulwa kweepropati ezibonakalayo ze-two-dimensional transition metal sulfide materials, ezibonelela ngombono omtsha wokwenziwa kweeseli zelanga kunyeii-photodetectors.Iziphumo zapapashwa kushicilelo lwamva nje lwejenali yamazwe ngamazwe i-Advanced Materials.
“I-ultra-thin lead iodide nanosheets esiyilungiselele okokuqala, igama lobugcisa lithi' i-atomically thick wide band gap iicrystals ze-PbI2 ezine-dimensional, nto leyo eyinto ecekethekileyo yesemiconductor enobunzima beenanometers ezimbalwa kuphela. ”U-Sun Yan, umbhali wokuqala wephepha kunye nomgqatswa wobugqirha kwiYunivesithi yeTekhnoloji yaseNanjing, wathi basebenzise indlela yesisombululo sokudibanisa, eneemfuno zezixhobo eziphantsi kakhulu kwaye ineenzuzo zokulula, ngokukhawuleza nangokufanelekileyo, kwaye banokuhlangabezana ne iimfuno zokulungiswa kwendawo enkulu kunye nemveliso ephezulu.Iinanosheets ze-iodide ezidityanisiweyo zinemilo ye-triangular rhoqo okanye i-hexagonal, ubungakanani obuphakathi kwee-microns ezi-6, umphezulu ogudileyo kunye neempawu ezintle zokukhanya.
Abaphandi badibanisa le nanosheet ye-ultra-thin ye-load iodide kunye ne-sulfides ye-transition ye-2-dimensional metal, eyilwe ngobuchule, yahlanganiswa kunye, kwaye yafumana iindidi ezahlukeneyo ze-heterojunctions, kuba amanqanaba amandla ahlelwe ngeendlela ezahlukeneyo, ngoko iodide yokukhokela ingaba nemiphumo eyahlukeneyo. kwintsebenzo ye-optical eyahlukeneyo ye-sulfide yesinyithi yenguqu ephindwe kabini.Esi sakhiwo sebhendi sinokuphucula ngokufanelekileyo ukukhanya okukhanyayo, okuhambelana nokuveliswa kwezixhobo ezifana ne-diode ezikhupha ukukhanya kunye ne-laser, ezisetyenziswa ekuboniseni nasekukhanyiseni, kwaye zinokusetyenziswa kwintsimi yeefotodetectors kunye ne-laser.izixhobo photovoltaic.
Le mpumelelo iqonda ukulawulwa kweepropathi ze-optical ze-two-dimensional transition metal sulfide materials by ultra-thin lead iodide.Xa kuthelekiswa nezixhobo zemveli ze-optoelectronic ezisekelwe kwizinto ezisekelwe kwi-silicon, le mpumelelo ineempawu zokuguquguquka, i-micro kunye ne-nano.Ngoko ke, inokusetyenziswa ekulungiseleleni ukuguquguquka kunye nokudibanisaizixhobo ze-optoelectronic.Inombono obanzi wesicelo kwintsimi yezixhobo ezidibeneyo ze-micro kunye ne-nano optoelectronic, kwaye inika ingcamango entsha yokuvelisa iiseli zelanga, i-photodetectors kunye nokunye.
Ixesha lokuposa: Sep-20-2023