Los ntawm qaum teb polytechnical kawm yooj yooj yim electronics tshawb fawb lub tuam txhab tus kws tshawb fawb, tus xibfwb ntawm suav academy ntawm stevie hoang thiab lwm tus thawj coj ntawm nanjing tsev kawm ntawv ntawm lub koom haum technology ntawm cov ntaub ntawv siab Wang Jianpu xibfwb pab neeg siv LED los ntawm kev siv tsawg kev daws teebmeem, tsis ntev los no ntawm perovskite lub teeb- emitting txheej tsim tso tawm rau txoj kev tshiab ntawm kev xav, ze ze qhov teeb meem peršasity LED sab nrauv quantum efficiency yog tsa mus rau 20. 7%, lub ntiaj teb tshiab cov ntaub ntawv, tau luam tawm nyob rau hauv phau ntawv journal Nyob rau Lub Kaum Hlis 11th.
LED yog ib yam ntawm cov khoom siv hluav taws xob hluav taws xob uas muaj peev xwm hloov ua hluav taws xob rau hauv hluav taws xob. Nws yog lub zog los ntawm kev txuag hluav taws xob, kev tiv thaiv ib puag ncig, kev nyab xeeb thiab siab ci ntsa iab. Nws tau dav siv nyob rau hauv txhua txhua hnub thiab lub neej. Perovskite lub teeb-emitting diodes, uas muaj ob qho kev zoo ntawm cov qauv hauv nruab thiab cov organic organic-emitting diode (OLED) hauv xyoo tsis ntev los no, muaj cov ntaub ntawv sab nrauv rau cov cheeb tsam qis zog, siab ua kom pom, loj loj saib thiab teeb pom kev zoo. Nyob rau hauv 2016, lub pab pawg neeg tshawb fawb npaj siab tias perovskite dimension kev cai tsim perovskite lub teeb-emitting diode (LED) cov ntaub ntawv efficiency.
Rau ntau zaum uas tau ua hauj lwm ntawm perovskite LED tshawb nrhiav ntev, tsuas yog lub plhaub tiab perovskite nyias thim nrog cov kev pabcuam siab thiab tsis muaj qhov pom tseeb yog lub hauv paus rau qhov kev paub ntawm cov khoom siv txuag. Pab neeg ntawv daim ntawv, lub npe "peršiite light-emitting diodes raws li qhov tshwm sim ntawm submicron qauv," nyob rau hauv qhov, tsis tsuas yog ua txhaum no lub tswv yim, tab sis kuj qhia lub ntiaj teb tshaj plaws quantum efficiency ntawm perpsite leds. Professor wang hais tias lawv pom tias thaum perbergite nplej tau zoo li mah-jongg vuas, cais los ntawm txhua lwm thiab faib irregularly rau lub substrate lub nto, ib qho kev quantum efficiency ntawm 20 yuav tau. 7% ntawm cov kev sib txuas ntawm infrared peršiite (light-emitting diodes) (coj), piv nrog 13% ntawm thoob ntiaj teb cov phooj ywg kom tau txais txiaj ntsig zoo dua, nce ze li ntawm 8%, ntaus ntawv irradiance sr - 390 W 1 m - 2, thiab nyob rau hauv qhov tam sim no ceev ntawm 100 mA cm - 2 kev ua hauj lwm tas mus li kom txo tau ib nrab tom qab 20 xuab moos, kev ua tau zoo tshaj qhov siab txias band OLED.
Raws li stevie hoang academician, pawg neeg nrog zhejiang tsev kawm ntawv xibfwb Tian He, zinc xibfwb pab, pom tias perbergite lub teeb-emitting txheej yog li ntawm tawg perovskite nruab nrab ntawm cov qoob loj thiab embedded nyob rau hauv grain loj ntawm tsawg qis index ntawm organic insulating txheej , thiab cov qauv yuav ntxiv lub cuab yeej ua rau kom ib ce thiab cov downs ntawm sab saum toj electrode tag fold qauv, li no zoo dua cov cuab yeej ntawm cov khoom siv kho qhov muag. Qhov kev ua tiav no tseem ceeb theoretical thiab tswv yim tseem ceeb rau txoj kev loj hlob thiab daim ntawv thov ntawm perovskite LED, thiab muab ib lub tswv yim tshiab thiab mus kom ze rau kev txhawb ntxiv industrialization txoj kev loj hlob ntawm perovskite LED.
