Mutete uye munyoro mutsva semiconductor zvinhu zvinogona kushandiswa kugadzira micro uyenano optoelectronic zvishandiso
matombo, ukobvu hwema nanometers mashoma, yakanaka kuona zvinhu… Mutori wenhau akadzidza kubva kuNanjing University of Technology kuti boka rekutsvagisa rapurofesa weDhipatimendi refizikisi rechikoro rakagadzira kristaro yakaonda-yakatetepa yepamusoro-soro maviri-dimensional lead iodide inotungamira, uye kuburikidza nayo kuti iwane kudzorwa kweiyo optical properties ye-two-dimensional simbi yekugadzira sulfidi yezvigadzirwa masero uyephotodetectors. Mhedzisiro yacho yakaburitswa mumagazini yepasi rose Advanced Materials.
"Iyodhidhi yakaonda-yakatetepa iodide nanosheets yatakagadzira kekutanga, tekinoroji izwi ndere" atomiki gobvu rakakura bhendi gap maviri-dimensional PbI2 makristasi', inova yakanyanya kutetepa 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 zvakanyanya zvinodiwa zvemidziyo uye ine zvakanakira nyore, nekukurumidza uye inoshanda, uye inokwanisa kuzadzisa zvinodiwa zvenzvimbo huru-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 ine maviri-dimensional transition metal sulfides, yakagadzirwa nemaoko, akaiunganidza pamwe chete, uye akawana marudzi akasiyana-siyana eheterojunctions, nokuti mazinga emagetsi anorongwa nenzira dzakasiyana, saka iodide inotungamira inogona kuva nemigumisiro yakasiyana-siyana pakushanda kwemaziso emhando mbiri-dimensional sulfide transition metal. 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