E mafai ona faʻaaogaina mea fou manifinifi ma vaivai o le semiconductor e fai ai masini micro ma nano optoelectronics

E mafai ona faʻaaogaina mea fou manifinifi ma vaivai o le semiconductor e fai ai ni mea laiti ma ni mea faʻapena.masini nano optoelectronic

o mea taua, mafiafia e na o ni nai nanometa, meatotino lelei opitika… Na iloa e le tusitala mai le Iunivesite o Tekinolosi a Nanjing ua saunia e le vaega suʻesuʻe a le polofesa o le Matagaluega o le fisiki a le aʻoga se tioata manifinifi maualuga e lua-dimensional lead iodide, ma e ala i ai e ausia ai le faʻatonutonuina o meatotino opitika o mea e lua-dimensional transition metal sulfide, lea e maua ai se manatu fou mo le gaosiga o sela o le la maphotodetectors. Na lomia fa'asalalauina ia i'uga i le lomiga lata mai o le mekasini faavaomalo o le Advanced Materials.

“O nanosheets manifinifi o le lead iodide ua matou saunia mo le taimi muamua, o le faaupuga faʻapitoa o le 'atomically thick wide band gap two-dimensional PbI2 crystals', o se mea semiconductor manifinifi tele e naʻo ni nai nanometers le mafiafia.” Na saunoa Sun Yan, o le tusitala muamua o le pepa ma o se sui tauva doctoral i le Iunivesite o Tekinolosi a Nanjing, na latou faʻaaogaina le metotia o fofo e faʻapipiʻi ai, lea e matua maualalo lava manaʻoga o meafaigaluega ma e iai le lelei o le faigofie, vave ma lelei, ma e mafai ona faʻafetaui manaʻoga o le sauniuniga o mea tetele ma maualuga le fua. O nanosheets lead iodide ua faʻapipiʻiina e iai le foliga tafatolu poʻo le hexagonal masani, lapoʻa masani o le 6 microns, foliga lamolemole ma meatotino lelei opitika.

Na tuufaatasia e le au suesue lenei nanosheet manifinifi tele o le lead iodide ma sulfides uʻamea fesuiaʻi lua-dimensional, na mamanuina faʻapitoa, faʻaputu faʻatasi, ma maua ai ituaiga eseese o heterojunctions, aua o tulaga o le malosi e faʻatulagaina i auala eseese, o lea e mafai ai e le lead iodide ona i ai ni aafiaga eseese i le faʻatinoga opitika o sulfides uʻamea fesuiaʻi lua-dimensional eseese. O lenei fausaga o le fusi e mafai ona faʻaleleia lelei le lelei o le malamalama, lea e fesoasoani i le gaosiga o masini e pei o diodes ma lasers e faʻasalalauina ai le malamalama, lea e faʻaaogaina i le faʻaaliga ma le moli, ma e mafai ona faʻaaogaina i le matata o photodetectors ma.masini photovoltaic.

O lenei ausia ua iloa ai le faʻatonutonuina o meatotino opitika o mea sulfide uʻamea fesuiaʻi lua-dimensional e ala i le ultra-thin lead iodide. Pe a faʻatusatusa i masini optoelectronic masani e faʻavae i luga o mea e faʻavae i luga o le silicon, o lenei ausia e iai uiga o le fetuutuunaʻi, micro ma nano. O le mea lea, e mafai ona faʻaaogaina i le sauniaina o mea fetuutuunaʻi ma tuʻufaʻatasia.masini optoelektronika. E lautele lona fa'aaogaina i le matāgaluega o masini eletise laiti ma nano ua tu'ufa'atasia, ma ua maua ai se manatu fou mo le gaosiga o sela o le la, masini e iloa ai ata ma isi mea fa'apena.