Mutete uye munyoro mutsva semiconductor zvinhu zvinogona kushandiswa kugadzira micro uyenano optoelectronic zvishandiso
matombo, ukobvu hwemananomita mashoma, zvinhu zvakanaka zvemaziso… Mutori wenhau akadzidza kubva kuNanjing University of Technology kuti boka rekutsvagisa rapurofesa weDhipatimendi refizikisi repachikoro rakagadzira kristaro yakatetepa-yepamusoro-soro yemhando mbiri-inotungamira iodide. , uye kuburikidza nayo kuti uwane hutungamiri hwezvinhu zvemaziso maviri-dimensional transition metal sulfide zvinhu, izvo zvinopa pfungwa itsva yekugadzirwa kwemasero ezuva uye.photodetectors. Mhedzisiro yacho yakaburitswa mumagazini yepasi rose Advanced Materials.
"Iyodhidhi yakaonda-yakatetepa iodide nanosheets yatakagadzirira kekutanga, tekinoroji izwi rinoti 'atomu yakakora yakafara bhendi gap maviri-dimensional PbI2 makristasi', ari akanyanya-mutete semiconductor zvinhu zvine ukobvu hwema nanometer mashoma. ” Sun Yan, munyori wekutanga webepa uye mukwikwidzi wechiremba kuNanjing University of Technology, akataura kuti vakashandisa nzira yekugadzirisa kugadzira, iyo ine yakaderera kwazvo midziyo zvinodiwa uye ine zvakanakira nyore, nekukurumidza uye inoshanda, uye inokwanisa kusangana ne zvinodiwa zvenzvimbo yakakura uye yepamusoro-yegoho rekugadzirira zvinhu. Iyo yakasanganiswa lead iodide nanosheets ine yakajairika triangular kana hexagonal chimiro, avhareji saizi ye6 microns, yakatsetseka pamusoro uye yakanaka yekuona zvinhu.
Vatsvakurudzi vakabatanidza iyi ultra-thin nanosheet ye lead iodide ne-two-dimensional transition metal sulfides, yakagadzirwa nemaoko, yakarongedza pamwe chete, uye vakawana marudzi akasiyana-siyana eheterojunctions, nokuti mazinga emagetsi akarongwa nenzira dzakasiyana, saka iodide inotungamira inogona kuva nemigumisiro yakasiyana. pamusoro pekushanda kwemaziso akasiyana-siyana maviri-dimensional transition metal sulfides. Ichi bhendi chimiro chinogona kunyatso kuvandudza kupenya kwakanaka, kunobatsira mukugadzirwa kwemidziyo yakadai semwenje-emitting diode uye lasers, ayo anoshandiswa mukuratidzira uye mwenje, uye anogona kushandiswa mumunda wephotodetectors uye.photovoltaic zvishandiso.
Kubudirira uku kunoona kudzorwa kwezvinhu zvemaziso zvemaviri-dimensional shanduko yesimbi sulfide zvinhu ne Ultra-yakaonda lead iodide. Kuenzaniswa neyechinyakare optoelectronic zvishandiso zvinoenderana nesilicon-based zvinhu, kubudirira uku kune hunhu hwekuchinjika, diki uye nano. Nokudaro, inogona kushandiswa pakugadzirira kwekushanduka uye kusanganiswaoptoelectronic zvishandiso. Iyo ine tarisiro yakafara yekushanda mumunda weyakasanganiswa micro uye nano optoelectronic zvishandiso, uye inopa pfungwa nyowani yekugadzira solar maseru, mafotodetectors uye zvichingodaro.
Nguva yekutumira: Sep-20-2023