Izinto ezithambileyo nezithambileyo zesemiconductor zingasetyenziselwa ukwenza i-micro kunyeizixhobo ze-nano optoelectronic
Iintambo, ubukhulu bee-nanometers ezimbalwa kuphela, iipropathi ezintle zamehlo... Intatheli yafunda kwiYunivesithi yaseNanjing yeTekhnoloji ukuba iqela lophando likanjingalwazi weSebe lefiziksi yesikolo lilungiselele ikristale ye-iodide ekumgangatho ophakamileyo we-ultra-thin-dimensional lead iodide, kwaye ngayo ukufikelela kulawulo lweepropathi ze-optical ze-optical-dimensional ze-metal-dimensional ingcamango ye-sodium-dimensional ibonelela nge-transferi entsha. iiseli kunyeii-photodetectors. Iziphumo zapapashwa kwiphephancwadi lamazwe ngamazwe i-Advanced Materials.
"Iiodide nanosheets ze-iodide ezicekethekileyo esizilungiselele okokuqala, igama lobugcisa 'ligama le-atomically elishinyeneyo elibanzi ngebhanti ye-PbI2 crystals', eyimathiriyeli yesemiconductor ebhityileyo kakhulu enobunzima beenanometers ezimbalwa kuphela." U-Sun Yan, umbhali wokuqala wephepha kunye nomviwa ogqirha kwiYunivesithi yeTekhnoloji yaseNanjing, wathi basebenzise indlela yesisombululo sokudibanisa, eneemfuno zezixhobo eziphantsi kakhulu kwaye ineenzuzo zokulula, ngokukhawuleza kunye nokusebenza kakuhle, kwaye inokuhlangabezana neemfuno zendawo enkulu kunye nokulungiswa kwezinto eziphezulu zemveliso. 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-iodide ye-load kunye ne-sulfide ye-transition ye-metal-dimensional-dimensional, eyilwe ngobuchule, yahlanganiswa kunye, kwaye yafumana iindidi ezahlukeneyo ze-heterojunctions, ngenxa yokuba amanqanaba amandla ahlelwe ngeendlela ezahlukeneyo, ngoko ke iodide ekhokelayo ingaba nemiphumo eyahlukileyo kwintsebenzo ye-optical ye-dimensional transition metal transition. Esi sakhiwo sebhendi sinokuphucula ngokufanelekileyo ukukhanya okukhanyayo, okuhambelana nokuveliswa kwezixhobo ezifana ne-diode ezikhupha ukukhanya kunye ne-lasers, 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