O mea manifinifi ma vaivai fou semiconductor e mafai ona faʻaogaina e fai ai masini micro ma nano optoelectronic

E mafai ona fa'aogaina mea fou semiconductor manifinifi ma vaivai e fai ai micro manano optoelectronic masini

roperties, mafiafia o na o ni nai nanometers, mea lelei opitika ... Na aʻoaʻoina e le tusitala mai le Nanjing University of Technology e faapea o le vaega suʻesuʻe a le polofesa o le Physics Department o le aʻoga ua saunia se tioata sili ona manifinifi maualuga lua-dimensional lead iodide crystal. , ma e ala atu i ai e ausia ai le faʻatonutonuina o mea faʻapitoa o mea e lua-dimensional sulfide uʻamea sulfide, lea e maua ai se manatu fou mo le gaosiga o sela sola maphotodetectors. O fa'ai'uga na fa'asalalauina i le lomiga lata mai o le International Journal Advanced Materials.

"O le ultra-thin lead iodide nanosheets ua matou saunia mo le taimi muamua, o le faaupuga faʻainisinia o 'atomika mafiafia lautele gap lua-dimensional tioata PbI2', o se mea semiconductor ultra- manifinifi ma le mafiafia o na o ni nai nanometers. ” Sun Yan, le tusitala muamua o le pepa ma se sui tauva faafomai i le Iunivesite o Tekonolosi Nanjing, fai mai na latou faaaogaina le auala fofo e synthesize, lea e matua maualalo manaoga meafaigaluega ma ei ai le lelei o le faigofie, vave ma lelei, ma e mafai ona ausia le mana'oga o le tele o vaega ma le maualuga o le gaosiga o mea e maua. O le synthesized lead iodide nanosheets e masani ona tafatolu poʻo le hexagonal foliga, lapopoa averesi o 6 microns, lamolemole luga ma meatotino mata lelei.

Na tuufaatasia e le au suʻesuʻe lenei nanosheet sili ona manifinifi o le iodide taʻitaʻia ma le lua-dimensional transition metal sulfides, faʻapipiʻiina faʻatasi, faʻapipiʻi faʻatasi, ma maua ai ituaiga eseese o heterojunctions, ona o le maualuga o le malosi e faʻatulagaina i auala eseese, o lea e mafai ai ona i ai ni aafiaga eseese o le iodide taʻitaʻi. i luga o le faatinoga opitika o sulfide u'amea suiga lua-itu eseese. O lenei faʻapipiʻi faʻapipiʻi e mafai ona faʻaleleia lelei le faʻamalamalamaga lelei, lea e faʻaogaina i le gaosiga o masini e pei o le moli-emitting diodes ma lasers, lea e faʻaaogaina i faʻaaliga ma moli, ma e mafai ona faʻaaogaina i le fanua o photodetectors mamasini photovoltaic.

O lenei 'ausia ua iloa ai le fa'atonutonuina o mea fa'apitoa o mea fa'amea sulfide u'amea fa'asolo e lua e ala i le iodide sili manifinifi. Pe a faatusatusa i masini optoelectronic masani e faavae i mea e faavae i luga o le silicon, o lenei ausia e iai uiga o le fetuutuunai, micro ma nano. O le mea lea, e mafai ona faʻaaogaina i le sauniuniga o fetuutuunai ma tuʻufaʻatasiamasini optoelectronic. O loʻo i ai se faʻamoemoega lautele faʻaoga i le fanua o masini micro ma nano optoelectronic tuʻufaʻatasia, ma maua ai se manatu fou mo le gaosiga o sela sola, photodetectors ma isi.