Lisebelisoa tse ncha tse tšesaane le tse bonolo tsa semiconductor li ka sebelisoa ho etsa micro lelisebelisoa tsa nano optoelectronic
thepa, botenya ba li-nanometers tse 'maloa feela, thepa e ntle ea optical… Moqolotsi oa litaba o ithutile ho tsoa Univesithing ea Theknoloji ea Nanjing hore sehlopha sa lipatlisiso sa moprofesa oa Lefapha la fisiks sekolong se lokiselitse kristale e mosesaane ea boleng bo holimo ea mahlakore a mabeli a iodide. , 'me ka eona ho finyella taolo ea thepa ea optical ea lisebelisoa tse peli tsa phetoho ea tšepe ea sulfide, e fanang ka maikutlo a macha bakeng sa ho etsoa ha letsatsi. lisele leli-photodetectors. Liphetho li ile tsa hatisoa tokollong ea morao-rao ea koranta ea machaba ea Advanced Materials.
"Li-nanosheet tsa iodide tse tšesaane haholo tseo re li lokiselitseng khetlo la pele, lentsoe la tekheniki ke 'atomically thick wide band gap two-dimensional PbI2 crystals', e leng thepa ea semiconductor e tšesaane haholo e nang le botenya ba li-nanometers tse 'maloa feela. ” Sun Yan, sengoli sa pele sa pampiri le mokhethoa oa bongaka Univesithing ea Theknoloji ea Nanjing, o boletse hore ba sebelisitse mokhoa oa tharollo oa ho kopanya, o nang le litlhoko tse tlase haholo tsa lisebelisoa mme o na le melemo ea ho ba bonolo, ka potlako le ka mokhoa o sebetsang, 'me o ka kopana le litlhoko tsa sebaka se seholo le ho lokisa thepa e ngata. Li-nanosheet tse entsoeng ka iodide tse entsoeng ka pele li na le sebopeho se tloaelehileng sa khutlo-tharo kapa sa hexagonal, boholo ba karolelano ea li-micron tse 6, bokaholimo bo boreleli le thepa e ntle ea mahlo.
Bafuputsi ba ile ba kopanya nanosheet ena e tšesaane haholo ea iodide ea lead le li-sulfide tsa tšepe tse mahlakore a mabeli, tse entsoeng ka maiketsetso, tsa li bokella hammoho, 'me tsa fumana mefuta e fapaneng ea li-heterojunctions, hobane matla a matla a hlophisitsoe ka litsela tse fapaneng, kahoo iodide ea lead e ka ba le litlamorao tse fapaneng. mabapi le ts'ebetso ea optical ea li-sulfide tsa tšepe tse fapaneng tse mahlakore a mabeli. Sebopeho sena sa sehlopha se ka ntlafatsa ka katleho ts'ebetso e khanyang, e loketseng tlhahiso ea lisebelisoa tse kang li-diode tse ntšang khanya le li-lasers, tse sebelisoang ponts'ong le maboneng, 'me li ka sebelisoa lefapheng la li-photodetectors le li-laser.lisebelisoa tsa photovoltaic.
Katleho ena e hlokomela taolo ea thepa ea optical ea lisebelisoa tse peli tsa transition metal sulfide ka iodide e tšesaane ea lead. Ha ho bapisoa le lisebelisoa tsa khale tsa optoelectronic tse thehiloeng ho thepa e thehiloeng ho silicon, katleho ena e na le litšobotsi tsa ho feto-fetoha ha maemo, micro le nano. Ka hona, e ka sebelisoa ho lokisetsa ho feto-fetoha le ho kopanngoalisebelisoa tsa optoelectronic. E na le tebello e pharaletseng ea kopo lefapheng la lisebelisoa tse kopantsoeng tsa micro le nano optoelectronic, 'me e fana ka maikutlo a macha bakeng sa ho etsa lisele tsa letsatsi, li-photodetectors joalo-joalo.
Nako ea poso: Sep-20-2023