Theoretical efficiency ntawm 63.2 feem pua, ib tug breakthrough rau peb tiam photovoltaic hlwb!

Xav tsis thoob! New Intermediate Band Solar Cells (IBSCs) tuaj yeem ua tiav qhov kev xav tau ntawm 63.2 feem pua, peb zaug siab dua li cov hnub ci zoo tib yam (nrog kev ua tau zoo hauv cheeb tsam ntawm 20 feem pua)! Kev tshawb pom los ntawm pab pawg tshawb fawb thoob ntiaj teb uas tuaj yeem hloov pauv lub hnub ci kev lag luam! Netizens yog exclaiming: Puas yog IBSCs lub tswv yim Tshuag txog kev teeb tsa lub boom?

Tus tshiab darling ntawm peb tiam solar technology

Crystalline silicon solar cells sawv cev rau thawj tiam ntawm lub hnub ci, suav nrog monocrystalline, polycrystalline thiab amorphous silicon solar cells. Cov hlwb no twb tau siv dav hauv kev lag luam thiab kev siv hauv tsev thiab suav txog 90 feem pua ​​​​ntawm lub ntiaj teb kev lag luam photovoltaic. Txawm li cas los xij, lawv lub zog hloov pauv kev ua haujlwm tsuas yog 15-25 feem pua ​​​​thiab lawv cov nqi tsim khoom yog siab.

Thib ob tiam nyias-zaj duab xis hnub ci hlwb yog tsim los ntawm cov iav substrates, thiab txawm hais tias cov ntaub ntawv thiab cov nqi tsim khoom qis dua, lawv lub zog hloov pauv tau tsuas yog 6-10 feem pua.

Lub cim thib peb ntawm lub hnub ci lub hom phiaj txhawm rau txhim kho lub zog hloov pauv, txo cov nqi thiab pab txhawb kev siv. Lawv paub tias yog lub hnub ci tshiab thiab suav nrog cov hnub ci tsis muaj zog thiab cov organic nyias-zaj duab xis hnub ci, dye-sensitised thiab quantum dot-sensitised solar cells, thiab chalcogenide solar cells. Txawm hais tias lub sijhawm luv luv ntawm cov hlwb no, lawv muaj peev xwm loj hlob zoo vim tias lawv cov theoretical zog hloov pauv tau zoo thiab cov nqi tsim khoom tsawg.

Ntawm cov no, cov hnub ci nruab nrab ntawm lub hnub ci cell (IBSC) yog lub tswv yim tshiab rau kev txhim kho lub ntiaj teb kev ua haujlwm ntawm lub hnub ci hlwb. Nrog rau theoretical zog conversion efficiency txog li 63.2 feem pua, nws yog tus tshiab darling ntawm peb-tiam hnub ci tshuab thiab yog nce nyiam los ntawm kev lag luam.

Qhov kev nce hauv lub zog hloov pauv ntawm tes yog ua tiav los ntawm kev qhia lub zog nqaim nrog lub zog me me ntawm lub zog rau hauv qhov txwv tsis pub ntawm cov khoom siv semiconductor. Kev taw qhia ntawm lub zog nqaim no tso cai rau kom muaj zog sub-band sib txawv thaum ua kom lub zog qhib hluav taws xob tas li. Nrog rau qhov kev txhim kho no, lub hnub ci cell absorbs feem ntau ntawm lub teeb pom kev ntxiv rau qee qhov ntawm lub teeb infrared, yog li ua rau cov zis tam sim no thiab lub zog hloov pauv ntawm lub xov tooj ntawm tes.

Daim duab 1 Cell lub zog band daim duab: cov qauv hnub ci tsuas yog muaj cov kab hluav taws xob CB thiab valence band VB, tab sis cov hnub ci nruab nrab ntawm lub hnub ci kuj qhia ib qho nruab nrab band (IB) kom nqus tau cov hnub ci.

Txawm hais tias lub zog theoretical siab hloov pauv kev ua haujlwm ntawm lub nruab nrab hnub ci cell (IBSC), nws qhov kev ua tau zoo tsis zoo li qhov xav tau vim nws qhov muaj txiaj ntsig zoo sib xyaw ua ke (kev sib xyaw ntawm cov hluav taws xob thiab qhov nyob hauv nruab nrab band) thiab kev puas tsuaj ntawm semiconductor lattice. , nrog rau lub zog hloov dua siab tshiab efficiency qis dua tus nqi theoretical lossis txawm tias qis dua qhov ua tau zoo ntawm cov xovtooj ntawm tes. Nyob rau tib lub sijhawm, lub xov tooj ntawm tes yog kim heev rau kev tsim khoom. Tsis tas li ntawd, IBSCs muaj lub neej luv luv thiab tsuas yog siv tau ntawm qhov kub thiab txias, uas txwv tsis pub lawv cov khoom loj thiab daim ntawv thov.

Cov kws tshawb fawb los ntawm Imperial College hauv UK thiab University of New South Wales (UNSW) hauv Australia tsis ntev los no tau tshaj tawm txoj kev txhim kho tshiab ntawm lub hnub ci nruab nrab hnub ci cell (IBSC) thiab tau tshaj tawm lawv cov kev tshawb fawb tshiab hauv phau ntawv xov xwm RRL Solar. Tus qauv tsim tshiab sawv cev rau kev nce qib loj hauv thaj tsam ntawm interstitial band solar cells. Raws li tsab ntawv ceeb toom, IBSC tshiab siv lub hnub ci vaj huam sib luag tshiab thiab nthuav qhia cov qauv kho qhov muag tshwj xeeb uas siv tau ntau dua photons hauv lub hnub ci spectrum los ua kom lub cell lub photovoltaic efficiency. Kev tshaj tawm ntawm qhov kev tshawb fawb no kuj tseem yog ib kauj ruam tseem ceeb rau pem hauv ntej ntawm thaj chaw nruab nrab ntawm lub hnub ci hnub ci, uas yuav tsum txhawb nqa kev lag luam daim ntawv thov ntawm cov hnub ci nruab nrab ntawm lub hnub ci.

Raws li cov kws tshawb fawb, cov tshiab tsim nruab nrab ntawm lub hnub ci cell (IBSC) qhia txog lub hnub ci vaj huam sib luag tshiab uas suav nrog 'ratchet band' (RB), lub zog hluav taws xob uas tuaj yeem pom hauv daim duab 1. Chav ua haujlwm kub yog ua tau. Qhov kev ua tiav no yuav muab lub hauv paus tseem ceeb rau kev txhim kho yav tom ntej ntawm IBSCs hlwb thiab yog lub hauv paus tseem ceeb hauv thaj chaw nruab nrab ntawm cov hnub ci hnub ci.

Rov qab rau xyoo 2020, ob tus kws tshawb fawb Spanish tau tshaj tawm tias: "Peb ntseeg tias ib zaug IBSCs tau tsim muaj txiaj ntsig zoo, lub zej zog kev tshawb fawb yuav nqis peev ntau rau kev ua kom zoo ntawm cov cuab yeej no. muaj txiaj ntsig zoo, nyob ntawm ntu kev lag luam, kev lag luam yuav pom muaj txiaj ntsig zoo. " Tam sim no hais tias kev ua tau zoo IBSCs tau tsim, qhov no tuaj yeem yog qhov kev hloov pauv loj rau PV kev lag luam ib zaug ntxiv cov tuam txhab koom nrog hauv kev tsim kho thiab ntau lawm.