Tau qhov twg los: eurekalert.org
Kev nce hauv kev ua tau zoo ntawm cov hnub ci vaj huam sib luag yuav nyob rau lub qab ntug, raws li kev tshawb fawb los ntawm Australian National University (ANU) txo lawv cov kev txwv tam sim no.
Cov kws tshawb fawb ANU tau pom ib txoj hauv kev los txhim kho kev ua haujlwm ntawm silicon photovoltaic (PV) lossis lub hnub ci hlwb. Qhov no yog ua los ntawm kev sib ntxiv ntawm 'passivating contacts' ntawm cov hlau thiab silicon qhov chaw ntawm lub hnub ci cell, ua rau nws ua tau zoo dua.
Mohamed Ismael, tus thawj coj ntawm ANU tus kws tshawb fawb thiab PhD tus neeg sib tw tau hais tias "Qhov kev tshawb pom no yuav pab txhawb kev ua haujlwm ntawm silicon hnub ci hlwb kom ze rau lawv txoj kev xav,"
"Txhua hnub, lub hnub tsim lub zog ntau dua li qhov xav tau los ua lub zog rau tag nrho lub ntiaj teb. Qhov kev txwv tsuas yog peb lub peev xwm los hloov pauv nyiaj txiag rau hluav taws xob," nws hais.
Lub hnub ci hlwb yog cov khoom siv uas hloov lub teeb lub zog hauv daim ntawv ntawm photons rau hauv lub zog hluav taws xob. Raws li nws sawv, lub hnub ci hlwb tsis ua haujlwm ntawm lawv lub peev xwm siab tshaj plaws vim muaj hluav taws xob poob ntau cuam tshuam nrog kev sib cuag ncaj qha ntawm cov hlau nrog silicon.
"Kev hloov pauv hlau oxides xws li titanium oxide muaj ntau yam zoo uas ua rau lawv zoo tagnrho raws li cov khaubncaws sab nraud povtseg," Dr Lachlan Black tau hais.
"Qhov no tsis yog lub tswv yim tshiab, tab sis txoj hauv kev uas peb muab cov txheej txheem sib xyaw ua ke tau tsim cov txiaj ntsig zoo dua thiab kev ua haujlwm siab dua li qhov tau tshaj tawm yav dhau los."
Pab neeg tshawb fawb vam tias yuav tsim cov thev naus laus zis mus rau qhov chaw uas nws tuaj yeem siv rau kev lag luam hnub ci ntawm cov nplai loj.
Kev lag luam PV yog kev lag luam ntau txhiab daus las, nrog silicon hnub ci hlwb pab txhawb rau 95 feem pua ntawm tag nrho cov hnub ci kev lag luam. Lawv tau kwv yees kom nyob twj ywm tseem ceeb rau yav tom ntej yav tom ntej muab lawv cov khoom muaj txiaj ntsig zoo piv rau cov neeg sib tw.
"Yog tias ua tiav, peb tuaj yeem pom peb cov thev naus laus zis hauv yuav luag txhua lub hnub ci tshiab tau nruab rau ntawm koj lub ru tsev lossis cov chaw siv hluav taws xob hnub ci," Dr Black hais.
Qee qhov teeb meem tseem ceeb tseem yuav tsum tau daws ua ntej cov thev naus laus zis tuaj yeem siv tau, tab sis PV zej zog twb tau ua haujlwm los daws cov teeb meem no.
"Kev txhim kho kev ua haujlwm ntawm lub hnub ci hlwb tau lees paub ntau lub zog huv ntawm tus nqi txo. Qhov no tsis tsuas yog pab daws qhov kev hloov pauv huab cua, tab sis qhib kev lag luam tshiab rau lub zog huv huv no," Ismael hais.
