Zida zatsopano zopyapyala zopyapyala komanso zofewa zitha kugwiritsidwa ntchito kupanga zida zazing'ono ndi nano optoelectronic

Zida zowonda komanso zofewa zatsopano za semiconductor zitha kugwiritsidwa ntchito kupanga yaying'ono ndinano optoelectronic zipangizo

zingwe, makulidwe a nanometers ochepa chabe, zinthu zabwino kuwala ... Mtolankhani anaphunzira ku Nanjing University of Technology kuti gulu kafukufuku wa pulofesa wa fiziki Dipatimenti ya sukulu yakonza kopitilira muyeso-woonda apamwamba amitundu iwiri kutsogolera ayodi kristalo, ndipo kupyolera mu izo kukwaniritsa lamulo la kuwala katundu wa mbali ziwiri za zitsulo, amene amapereka transfidi zitsulo lingaliro latsopano sulfide kupanga transfiction. ma cell ndima photodetectors. Zotsatirazo zidasindikizidwa m'magazini yaposachedwa yapadziko lonse lapansi Advanced Materials.

"Ma nanosheets owonda kwambiri a iodide omwe tidawakonzera koyamba, mawu aukadaulo ndi 'atomiki yokhuthala kwambiri gap makhiristo amitundu iwiri a PbI2', omwe ndi ma semiconductor owonda kwambiri okhala ndi makulidwe a nanometer ochepa chabe." Sun Yan, mlembi woyamba wa pepala ndi phungu wa udokotala ku Nanjing University of Technology, ananena kuti anagwiritsa ntchito njira yothetsera kaphatikizidwe, amene ali otsika kwambiri zipangizo zofunika ndipo ali ndi ubwino wa zosavuta, mofulumira ndi kothandiza, ndipo akhoza kukwaniritsa zofunika m'dera lalikulu ndi mkulu-zokolola zakuthupi kukonzekera. Ma nanosheets opangidwa ndi ayodini amakhala ndi mawonekedwe a triangular kapena hexagonal, kukula kwake kwa ma microns 6, pamtunda wosalala komanso mawonekedwe abwino a kuwala.

Ofufuzawo anaphatikiza nanosheet yowonda kwambiri ya ayodini wotsogola ndi ma sulfide amitundu iwiri, opangidwa mochita kupanga, adawasonkhanitsa pamodzi, ndipo adapeza mitundu yosiyanasiyana ya ma heterojunctions, chifukwa milingo yamphamvu imakonzedwa m'njira zosiyanasiyana, kotero kuti iodide yotsogolera imatha kukhala ndi zotsatira zosiyanasiyana pakupanga kwamitundu yosiyanasiyana yamitundu iwiri ya sulfide transition. Kapangidwe ka bandi kameneka kamatha kukonza bwino kuwala kowala, komwe kumathandizira kupanga zida monga ma diode otulutsa kuwala ndi ma lasers, omwe amagwiritsidwa ntchito powonetsa ndi kuyatsa, ndipo angagwiritsidwe ntchito m'munda wa ma photodetectors ndi ma laser.zipangizo za photovoltaic.

Kupambana kumeneku kumazindikira kuwongolera kwa mawonekedwe amitundu iwiri yosinthira zitsulo za sulfide ndi ayodini wowonda kwambiri. Poyerekeza ndi zida zachikhalidwe za optoelectronic zochokera pazida zokhala ndi silicon, kupindula uku kuli ndi mawonekedwe a kusinthasintha, yaying'ono ndi nano. Choncho, angagwiritsidwe ntchito pokonzekera kusinthasintha ndi Integratedzida za optoelectronic. Ili ndi chiyembekezo chogwiritsa ntchito kwambiri pazida zophatikizika zazing'ono ndi nano optoelectronic, ndipo imapereka lingaliro latsopano lopanga ma cell a solar, ma photodetectors ndi zina zotero.