Enwere ike iji ihe semiconductor ọhụrụ dị nro ma dị nro mee ngwa micro na nano optoelectronic

Enwere ike iji ihe semiconductor ọhụrụ dị nro ma dị nro mee obere nanano optoelectronic ngwaọrụ

roperties, ọkpụrụkpụ nke naanị ole na ole nanometers, ezigbo ngwa anya Njirimara… The nta akụkọ mụtara na Nanjing University of Technology na nnyocha ìgwè nke prọfesọ nke physics Department nke ụlọ akwụkwọ kwadebere ihe ultra-mkpa elu-edu abụọ-akụkụ ụzọ iodide crystal, na site na ya iji nweta ụkpụrụ nke ngwa anya Njirimara nke abụọ akụkụ mgbanwe ígwè sulfide ihe nke na-enye ihe ọhụrụ ígwè sulfide ihe na-emepụta ihe na-emepụta ihe.fotodetector. E bipụtara nsonaazụ ya na mbipụta ọhụrụ nke akwụkwọ akụkọ mba ụwa Advanced Materials.

"The ultra-thin lead iodide nanosheets anyị kwadebere maka oge mbụ, okwu teknụzụ bụ 'atomically thick wide band gap abụọ akụkụ PbI2 kristal', nke bụ ihe semiconductor dị nro dị nro nke nwere naanị nanometer ole na ole." Sun Yan, onye edemede mbụ nke akwụkwọ akụkọ ahụ na onye nyocha doctoral na Mahadum Teknụzụ Nanjing, kwuru na ha na-eji usoro ihe ngwọta mee ihe iji synthesize, nke nwere ngwá ọrụ dị oke ala chọrọ ma nwee uru nke dị mfe, ngwa ngwa na ịrụ ọrụ nke ọma, ma nwee ike izute mkpa nke nnukwu-mpaghara na nnukwu mmepụta ihe nkwadebe. Nanosheets nke ndu iodide a haziri ahazi nwere ọdịdị triangular ma ọ bụ hexagon, nkezi nha nke 6 microns, elu dị larịị na ezigbo ngwa anya.

Ndị na-eme nchọpụta jikọtara nanosheet ultra-thin nke lead iodide na ngbanwe metal sulfide nke nwere akụkụ abụọ, nke a haziri ahazi, kpokọta ha ọnụ, wee nweta ụdị heterojunctions dị iche iche, n'ihi na a na-ahazi ọkwa ike n'ụzọ dị iche iche, ya mere iodide ndu nwere ike inwe mmetụta dị iche iche na arụmọrụ ngwa anya nke dị iche iche n'ụzọ abụọ mgbanwe metal sulfides. Nke a band Ọdịdị nwere ike n'ụzọ dị irè melite luminous arụmọrụ, nke na-eme ka mmepụta nke ngwaọrụ dị ka ìhè-emitting diodes na lasers, nke na-etinyere na ngosi na ọkụ, na ike ga-eji na ubi nke photodetectors na.ngwaọrụ fotovoltaic.

Mmezu a na-achọpụta nhazi nke ngwa anya nke ihe igwe sulfide mgbanwe akụkụ abụọ site na ultra-thin lead iodide. Tụnyere ngwaọrụ optoelectronic ọdịnala dabere na ihe ndị sitere na silicon, mmezu a nwere njirimara mgbanwe, micro na nano. Ya mere, enwere ike itinye ya na nkwadebe nke mgbanwe na ntinyengwaọrụ optoelectronic. Ọ nwere atụmanya ngwa sara mbara n'ọhịa nke ngwaọrụ micro na nano optoelectronic agbakwunyere, ma na-enye echiche ọhụrụ maka imepụta mkpụrụ ndụ anyanwụ, fotodetectors na ihe ndị ọzọ.