Raws li peb txhua tus paub, lub hnub ci zog yog lub ntsiab ntawm lub teeb lub zog. Silicon panels tuaj yeem hloov lub teeb rau hauv hluav taws xob, thiab ib txwm siv lub hnub ci lithium roj teeb tuaj yeem ua qhov no tau zoo dua los ntawm kev nqus cov wavelengths ntxiv ntawm lub teeb.

Tsis tas li ntawd xwb, cov kws tshawb fawb tau pom tias siv cov kev teeb tsa dual-series, nws yog lub kaw lus tshiab uas siv cov tshuaj silicon-based thiab lwm txheej ntawm peroxide ua los ntawm “series” ua ke ntawm cov tshuab tshiab, uas tuaj yeem khaws ntau lub zog thiab capture Ib tug ntau ntawm nkim, xav txog thiab tawg lub teeb los ntawm hauv av (hu ua “albedo”) kom loj hlob tam sim no ntawm series hnub ci hlwb.

Thaum Lub Ib Hlis 11, 2021, Lub Koom Haum Kev Koom Tes Thoob Ntiaj Teb, suav nrog cov kws tshawb fawb los ntawm King Abdullah University of Science thiab Technology (KAUST) thiab UT Lub Tsev Kawm Ntawv ntawm Engineering) tau luam tawm ib tsab xov xwm hu ua “High Efficiency Based on Band Gap Engineering” hauv phau ntawv Journal Natural Energy. Peroxide/Double Monocrystalline Silicon Solar Cell” (EfficientbifacialmonolithicperovskitePaper/Silicontandemsolarcellsviabandgapineering) tsab xov xwm.

Daim ntawv no qhia txog pab pawg tag nrho cov txheej txheem ntawm kev tsim cov khoom siv peroxide / silicon kom dhau qhov kev lees paub tam sim no txwv ntawm kev teeb tsa series.

Pab neeg ua tiav qhov kev tshawb fawb no ua ke. Ntawm lawv, Dr. Michele DeBastiani tau muab lub tswv yim tshawb fawb thiab ua lub cuab yeej ua ke nrog alessandro j. Mirabelli.

University of Toronto hluav taws xob thiab khoos phis tawj engineering postdoctoral cov phooj ywg YiHou, Bin Chen thiab Anand S. Subbiah tsim cov peroxide band sib txawv, thaum Erkan Aydin thiab Furkan H. Isikgor tsim cov tandem sab saum toj kev sib cuag thiab layout.

Qhov xaus ntawm txoj kev tshawb no yog tias ob sab monolithic peroxide / silicon tandem hnub ci cell siv lub teeb diffuse albedo nyob rau hauv ib puag ncig, thiab kev ua tau zoo dua li ntawm ib sab peroxide / silicon tandem hnub ci cell. Pab neeg tshawb fawb thawj zaug tau tshaj tawm cov txiaj ntsig ntawm kev sim sab nraum zoov. Nyob rau hauv ib qho AM ​​1.5g hnub ci, cov ntawv pov thawj lub zog hloov pauv kev ua haujlwm ntawm ob tog sib txuas ntau dua 25%, thiab lub zog tsim hluav taws xob ceev yog siab li 26 mwcm-2.

Nyob rau tib lub sijhawm, cov kws tshawb fawb tau kawm txog qhov sib txawv ntawm peroxide band uas yuav tsum tau ua kom pom qhov zoo tam sim no nyob rau hauv ntau lub teeb pom kev zoo thiab albedo, piv cov yam ntxwv ntawm cov ncej ob sab uas raug rau cov albedo sib txawv, thiab muab kev sib piv ntawm ob qhov txiaj ntsig ntawm lub zog. ntau lawm nyob rau hauv ib qho chaw nrog txawv tej yam kev mob.

Thaum kawg, pab pawg tau muab piv rau cov chaw sim sab nraum zoov nrog ib sab thiab ob sab peroxidase / silicon cov hlua los ua kom pom qhov ntxiv tus nqi ntawm tandem duality rau cov chaw nrog cov albedo tiag tiag.

Lub cev tseem ceeb ntawm lub hnub ci tshiab tandem yog tsim los ntawm txheej silicon thiab peroxide txheej. Nyob rau tib lub sijhawm, lawv tau ua ke nrog ntau lwm cov tebchaw. Professor Stefaan DeWolf tau hais. “Qhov kev sib tw tseem ceeb yog qhov nyuaj ntawm cov khoom siv tandem. Muaj 14 cov ntaub ntawv koom nrog, thiab txhua yam khoom yuav tsum tau ua kom zoo tshaj plaws los coj mus rau hauv tus account lub zog ntawm albedo. “

hais tias Dr. Michele DeBastiani, tus thawj coj ntawm kev tshawb fawb. “Los ntawm kev siv albedo, tam sim no peb tuaj yeem tsim cov dej ntws ntau dua li cov kab mob bipolar ib txwm tsis muaj kev nce nqi hauv kev tsim khoom.” Cov kws sau ntawv ntawm txoj kev tshawb no suav nrog xibfwb Ted Sargent thiab postdoctoral tshawb fawb YiHou hauv Department of Electrical thiab Computer Engineering ntawm University of Toronto.

tau ua kev tshawb fawb txog lub peev xwm ntawm kev ntes cov hnub ci ncaj qha yav dhau los, tab sis tsis tau ua qhov kev sim ntsuas. Ntxiv rau University of Engineering thiab Technology, cov kws tshawb fawb ntawm King Abdullah University of Science thiab Technology (KAUST) kuj tau koom tes nrog cov neeg koom tes los ntawm Karlsruhe Institute of Technology thiab University of Bologna los daws cov kev tshawb fawb uas xav tau los koom nrog lub hnub tsis ncaj rau hauv lub zog sau qoob loo. ntawm lawv cov modules Thiab engineering cov nyom.

Tom qab ntawd, nyob rau hauv cov xwm txheej sab nraum zoov, lawv tau sim ob-sided tandem solar cells thiab ua tiav kev ua tau zoo tshaj li kev lag luam silicon hnub ci vaj huam sib luag.

“Ib leeg bifacial silicon hnub ci lub hnub ci tau nce sai heev hauv kev lag luam PHOTOVOLTAIC vim tias lawv tuaj yeem muab 20% kev txhim kho cov txheeb ze. Siv cov qauv no hauv peroxide / silane tuaj yeem ua tau zoo dua li cov hnub ci silicon solar cells. Thiab tuaj yeem txo tus nqi ntawm cov khoom siv raw. ” Xib fwb Stefaan DeWolf xaus lus. DeWolf thiab nws cov npoj yaig tau tsim cov thev naus laus zis no hauv kev koom tes nrog pab pawg hauv Canada, Lub Tebchaws Yelemees, thiab Ltalis.

Hauv qhov xaus ntawm daim ntawv, cov kws tshawb fawb tau ua pov thawj los ntawm kev sim siv ob lub ntsej muag los txhim kho kev ua haujlwm ntawm tag nrho cov qauv peroxide / silicon. Vim yog siv qhov nqaim peroxide band sib txawv, cov cuab yeej siv nrog pob tshab rov qab electrodes cia siab rau albedo kom ua rau cov tiam tam sim no ntawm cov hauv qab ntawm tes thiab tib lub sij hawm nce cov tiam tam sim no ntawm sab saum toj peroxide cell.

Qhov kev sib txuam no ua tiav rau peroxides nrog qhov sib txawv ntawm 1.59-1.62 eV. Piv nrog rau ib leeg-sided peroxide / silicon series, cov ntsiab lus bromine yog qhov tsawg tshaj plaws, yog li kev ruaj ntseg cuam tshuam nrog halide cais tawm tau txo qis heev. teeb meem. Pab pawg tau soj ntsuam qhov kev ua tau zoo ntawm ob sab tandem qauv hauv kev sim teb, thiab kwv yees lub zog tawm ntawm ob sab thiab ib sab tandem cov qauv nyob rau hauv cov huab cua sib txawv.

Nyob rau hauv ob qho tib si, lub tandem yog zoo dua li cov qauv ib leeg, uas qhia tau hais tias cov lus cog tseg ntawm no technology. Qhov kev ua haujlwm no qhia tau hais tias muaj peev xwm ntawm chav kawm tshiab ntawm lub hnub ci ua haujlwm siab uas tuaj yeem siv cov cuab yeej ua haujlwm siab tab sis tus nqi qis los kaw qhov sib txawv nrog 30mwcm-2PGD barrier.

Los ntawm no, ntxiv kev txhim kho cov cuab yeej kev ua tau zoo thiab nthuav dav ntawm cov cuab yeej thev naus laus zis yog cov kauj ruam tom ntej kom coj cov thev naus laus zis no los ze zog rau kev lag luam photovoltaic.

Xib fwb Christophe Ballif, tus thawj coj ntawm Lub Tsev Haujlwm Saib Xyuas Kev Lag Luam Photovoltaic ntawm Tsoom Fwv Teb Chaws Lub Tsev Kawm Txuj Ci hauv Lausanne, Switzerland, tsis tau koom nrog hauv qhov kev tshawb fawb no. Nws hais tias. “Cov ntaub ntawv no muab thawj qhov kev sim ua pov thawj tseeb rau cov cuab yeej siv ob sab. Kev soj ntsuam ntau ntawm kev ua tau zoo tshaj tawm los ntawm cov kws tshawb fawb tseem ceeb heev rau kev tsim cov cuab yeej ruaj khov uas xav tau rau cov thev naus laus zis no nkag mus rau hauv kev lag luam loj. ”