Tau qhov twg los: newwatlas.com
Pab neeg tshiab lub hnub ci cell ua haujlwm tau zoo ntawm 39.5 feem pua, nyob rau hauv cov teeb pom kev zoo sib npaug ntawm Lub Hnub. Qhov ntawd yog qhov sib txawv tseem ceeb los ua - lwm yam kev sim hnub ci hlwb tau sau npe ua tau zoo li 47 feem pua, tab sis qhov ntawd yog nyob rau hauv lub teeb pom kev zoo. Kev ntsuas lawv cov kev ua tau zoo nyob rau hauv "ib-Sun" illumination muab qhov qhia tau zoo ntawm lawv yuav ua tau zoo npaum li cas hauv lub ntiaj teb tiag.
Lub hnub ci cell tshiab saum toj kawg nkaus ntawm pab pawg tus kheej cov ntaub ntawv yav dhau los ntawm 39.2 feem pua los ntawm 2020. Los ntawm kev sib piv, feem ntau siv silicon hnub ci hlwb thiab cov perovskite lub hnub ci tshwm sim sab saum toj ntawm 25 feem pua kev ua tau zoo, thaum tandem hnub ci hlwb uas muab ob qho khoom siv tau nce mus txog 30 feem pua.
NREL hnub ci cell kuj tau sim seb nws yuav ua tau zoo npaum li cas hauv qhov chaw, yog tias nws yuav tsum tau siv rau lub hwj chim satellites thiab lwm lub dav hlau. Raws li cov xwm txheej no, nws tau ua tiav 34.2 feem pua kev ua tau zoo.
Lub hnub ci cell tshiab yog ua raws li kev tsim vaj tsev hu ua inverted metamorphic multijunction (IMM) hlwb, thiab muaj peb "txoj kev," cov khoom uas tsim hluav taws xob tam sim no teb rau lub teeb. Txhua qhov kev sib txuas yog ua los ntawm cov khoom sib txawv - qhov no, uas yog gallium indium phosphide nyob rau sab saum toj, gallium arsenide nyob rau hauv nruab nrab, thiab gallium indium arsenide nyob rau hauv qab. Peb cov ntaub ntawv no tshwj xeeb hauv kev sib txawv wavelengths ntawm lub teeb, cia lub hnub ci cell tag nrho los sau ntau zog los ntawm thoob plaws lub teeb spectrum.
Lwm qhov ua ntej uas tau ua rau cov ntaub ntawv tshiab ua tau zoo yog los tsim cov txheej txheem nruab nrab nrog "quantum wells." Qhov tseem ceeb, los ntawm sandwiching ib txheej conductive ntawm ob lwm yam ntaub ntawv nrog ib tug dav band kis, electrons raug kaw rau ob qhov ntev, uas tso cai rau cov khoom mus ntes ntau lub teeb. Lub nruab nrab txheej ntawm lub hnub ci cell muaj txog li 300 quantum qhov dej, boosting tag nrho efficiency rau qhov siab tshiab.
Kev tawg tuaj yeem yog qhov tseem ceeb rau lub hnub ci thev naus laus zis, tab sis pab pawg hais tias kev tsim cov cell no tseem kim heev. Kev ua haujlwm ntxiv yuav tsum tau ua kom txo qis cov nqi thiab qhib cov ntawv thov tshiab.
