Izinto ezintsha ezacile nezithambile ze-semiconductor zingasetshenziswa ukwenza i-micro andAmadivayisi we-nano optoelectronic
izintambo, ugqinsi lwama-nanometer ambalwa kuphela, izici ezinhle zokubuka... Intatheli ithole e-Nanjing University of Technology ukuthi iqembu locwaningo likaprofesa woMnyango we-physics wesikole lilungise ikristalu eholayo yekhwalithi ephezulu enezinhlangothi ezimbili eholayo ye-iodide. , futhi ngayo ukuze kuzuzwe ukulawulwa kwezakhiwo ze-optical ze-two-dimensional transition metal sulfide materials, ehlinzeka ngombono omusha wokwenziwa kwamaseli elanga kanyeama-photodetectors.Imiphumela yashicilelwa kumagazini wakamuva wephephabhuku lamazwe ngamazwe i-Advanced Materials.
“Ama-nanosheet omthofu omthofu kakhulu esiwalungiselele okokuqala, igama lobuchwepheshe lithi' i-atomically band wide gap crystals PbI2 crystals', okuwumsebenzi wesemiconductor ozacile kakhulu enogqinsi lwama-nanometer ambalwa kuphela. ”U-Sun Yan, umbhali wokuqala waleli phepha futhi othole iziqu zobudokotela e-Nanjing University of Technology, uthe basebenzise indlela yesixazululo ukuhlanganisa, enezidingo zemishini ephansi kakhulu futhi enezinzuzo zokulula, okusheshayo nokusebenza kahle, futhi ekwazi ukuhlangabezana nezidingo zemishini. izidingo zokulungiswa kwendawo enkulu kanye nesivuno esikhulu.Ama-nanosheet e-iodide omthofu ahlanganisiwe anomumo ovamile ongunxantathu noma oyi-hexagonal, usayizi omaphakathi wama-microns angu-6, indawo ebushelelezi kanye nezinto ezinhle zokubona.
Abacwaningi bahlanganisa le nanosheet encane kakhulu ye-iodide yomthofu enezinhlangothi ezimbili zensimbi ye-sulfide, eklanywe ngokwenziwa, yahlanganiswa, futhi yathola izinhlobo ezahlukene zama-heterojunctions, ngoba amazinga wamandla ahlelwa ngezindlela ezahlukene, ngakho iodide yomthofu ingaba nemiphumela ehlukene. ekusebenzeni kwe-optical kwama-sulfide ensimbi ahlukene anezinhlangothi ezimbili.Lesi sakhiwo sebhendi singathuthukisa ngempumelelo ukusebenza kahle okukhanyayo, okulungele ukukhiqizwa kwamadivayisi afana nama-diode akhipha ukukhanya nama-laser, asetshenziswa ekuboniseni nasekukhanyeni, futhi angasetshenziswa emkhakheni wama-photodetectors kanye nama-laser.Amadivayisi we-photovoltaic.
Le mpumelelo ibona ukulawulwa kwezici zokubona zezinto ze-two-dimensional transition metal sulfide nge-ultra-thin lead iodide.Uma kuqhathaniswa namadivayisi endabuko e-optoelectronic asekelwe ezintweni ezisekelwe ku-silicon, le mpumelelo inezici zokuguquguquka, i-micro ne-nano.Ngakho-ke, ingasetshenziswa ekulungiseleleni ukuguquguquka nokuhlanganisaamadivaysi e-optoelectronic.Inethuba elibanzi lohlelo lokusebenza emkhakheni wemishini ehlanganisiwe ye-micro kanye ne-nano optoelectronic, futhi inikeza umbono omusha wokukhiqiza amaseli elanga, ama-photodetectors nokunye.
Isikhathi sokuthumela: Sep-20-2023