Enwere ike iji ihe semiconductor ọhụrụ dị gịrịgịrị ma dị nro mepụta ngwaọrụ obere na nano optoelectronic

Enwere ike iji ihe ọhụrụ semiconductor dị gịrịgịrị ma dị nro mepụta obere nangwaọrụ nano optoelectronic

eriri, ọkpụrụkpụ nke naanị nanomita ole na ole, ezigbo ihe onwunwe anya… Onye nta akụkọ ahụ mụtara na Mahadum Teknụzụ Nanjing na otu ndị nyocha nke prọfesọ nke Ngalaba Fiziks nke ụlọ akwụkwọ ahụ akwadola kristal lead iodide nwere akụkụ abụọ dị oke mkpa, ma site na ya iji mezuo nhazi nke ihe anya nke ihe ígwè sulfide mgbanwe akụkụ abụọ, nke na-enye echiche ọhụrụ maka imepụta mkpụrụ ndụ anyanwụ nafotodetectorE bipụtara nsonaazụ ya na mbipụta kachasị ọhụrụ nke akwụkwọ akụkọ mba ụwa Advanced Materials.

“Ngwaọrụ nano-lead iodide dị gịrịgịrị nke anyị kwadebeere maka oge mbụ, okwu teknụzụ bụ 'mkpụrụ ndụ PbI2 kristal dị oke ọkpụrụkpụ nke nwere oke ọkara atọm', nke bụ ihe semiconductor dị gịrịgịrị nke nwere oke ọkpụrụkpụ nke naanị nanomita ole na ole.” Sun Yan, onye edemede mbụ nke akwụkwọ ahụ na onye na-achọ akwụkwọ doctoral na Mahadum Teknụzụ Nanjing, kwuru na ha jiri usoro ngwọta ahụ mepụta, nke nwere obere ihe achọrọ maka akụrụngwa ma nwee uru dị mfe, ngwa ngwa na arụmọrụ, ma nwee ike igbo mkpa nke nkwadebe ihe dị ukwuu na nnukwu mpaghara na oke mkpụrụ. Ngwakọta nano-lead iodide a haziri ahazi nwere ọdịdị triangle ma ọ bụ hexagonal nkịtị, nha nkezi nke 6 microns, elu dị larịị na ezigbo ihe anya.

Ndị nchọpụta ahụ jikọtara nanosheet lead iodide a dị oke mkpa na sulfide metal transition dimensional abụọ, nke e ji aka rụọ, ha jikọtara ọnụ, wee nweta ụdị heterojunctions dị iche iche, n'ihi na a na-ahazi ọkwa ike n'ụzọ dị iche iche, yabụ lead iodide nwere ike inwe mmetụta dị iche iche na arụmọrụ anya nke sulfide metal transition dimensional abụọ dị iche iche. Nhazi eriri a nwere ike imeziwanye arụmọrụ na-enwu nke ọma, nke na-enyere aka na mmepụta nke ngwaọrụ dị ka diode na laser na-ewepụta ìhè, nke a na-etinye na ngosipụta na ọkụ, enwere ike iji ya na ngalaba photodetectors nangwaọrụ fotovoltaic.

Mmezu a na-emezu nhazi nke ihe anya nke ihe ígwè sulfide mgbanwe abụọ site na iodide lead dị gịrịgịrị. Ma e jiri ya tụnyere ngwaọrụ optoelectronic ọdịnala dabere na ihe ndị dabere na silicon, mmezu a nwere njirimara nke mgbanwe, micro na nano. Ya mere, enwere ike itinye ya na nkwadebe nke mgbanwe na njikọta.ngwaọrụ optoelectronicO nwere ohere sara mbara maka itinye ngwaọrụ micro na nano optoelectronic agbakwunyere, ma na-enyekwa echiche ọhụrụ maka imepụta sel anyanwụ, ihe nchọpụta foto na ihe ndị ọzọ.