Zoo dua Silicon Solar Panels

Cov kws tshawb fawb ntawm US Department of Energy' National Renewable Energy Laboratory (NREL) thiab Colorado School of Mines tab tom siv cov txheej txheem tshiab los txheeb xyuas qhov tsis xws luag hauv silicon hnub ci hlwb uas ua rau kev ua haujlwm poob qis. Cov tshooj lus kawm ntawm qib atomic tuaj yeem ua rau txhim kho txoj hauv kev uas cov tuam txhab tsim khoom ntxiv dag zog rau lawv cov khoom tiv thaiv qhov hu ua lub teeb-induced degradation.

Lub teeb-induced degradation, los yog LID, shaves lub efficiency ntawm silicon hnub ci hlwb li ntawm 2%, uas ntxiv mus rau ib tug tseem ceeb poob rau hauv lub hwj chim tso zis ntau tshaj li 30- rau 40-xyoo lifespan ntawm lub technology deployed nyob rau hauv lub tshav pob. Hnub ci hlwb ua los ntawm silicon account rau ntau tshaj 96% ntawm lub ntiaj teb no kev ua lag luam, thiab feem ntau siv semiconductor siv nyob rau hauv lub tsim ntawm cov hlwb yog tsim los ntawm boron-doped silicon. Tab sis boron-doped silicon yog qhov raug rau LID, yog li cov tuam ntxhab tau tsim txoj hauv kev kom ruaj khov rau hnub ci modules.

Yog tsis muaj kev nkag siab txog qhov tsis xws luag ntawm qib atomic, cov kws tshawb fawb tau hais tias nws tsis tuaj yeem kwv yees qhov kev ruaj ntseg ntawm cov qauv no.

& quot; Qee qhov ntawm cov modules ruaj khov kiag li. Ib txhia tsuas yog ib nrab ruaj khov," hais tias Abigail Meyer, ib tug Ph.D. tus neeg sib tw ntawm Mines thiab tus kws tshawb fawb ntawm NREL. Nws yog tus thawj coj ntawm daim ntawv tshiab qhia txog kev siv zog los txheeb xyuas qhov tshwm sim ntawm LID. Tsab xov xwm," Atomic Structure of Light-Induced Efficiency-Degrading Defect in Boron-Doped Czochralski Silicon Solar Cells," tshwm nyob rau hauv phau ntawv journalZog& Environmental Science.

Nws co-sau yog Vincenzo LaSalvia, William Nemeth, Matthew Page, David Young, Paul Stradins, tag nrho los ntawm NREL; Sumit Agarwal, Michael Venuti, thiab Serena Eley, uas yog los ntawm Mines; thiab P. Craig Taylor, tus kws tshaj lij Mines so haujlwm uas tau sab laj txog kev tshawb fawb.

Stradins, tus kws tshawb fawb tseem ceeb thiab tus thawj coj ua haujlwm hauv kev tshawb fawb silicon photovoltaic ntawm NREL, tau hais tias qhov teeb meem ntawm LID tau kawm ntau xyoo lawm tab sis qhov tseeb microscopic xwm ntawm dab tsi ua rau qhov degradation tsis tau txiav txim siab. Cov kws tshawb fawb tau xaus lus, los ntawm kev sim tsis ncaj thiab txoj kev xav, tias qhov teeb meem txo qis thaum siv boron tsawg lossis thaum muaj oxygen tsawg dua hauv silicon.

Kev koom tes ntawm NREL thiab Mines cov kws tshawb fawb tau tso siab rau electron paramagnetic resonance (EPR) txhawm rau txheeb xyuas qhov tsis xws luag lub luag haujlwm rau LID. Thawj thawj zaug, kev tshuaj xyuas microscopic qhia qhov txawv kos npe vim tias cov qauv hnub ci hlwb tau dhau los ntawm lub teeb. Qhov kos npe tsis raug ploj mus thaum cov kws tshawb fawb tau siv cov empirical" rov tsim dua tshiab" txheej txheem los kho LID uas kev lag luam tau txais yuav. Ua rau lawv xav tsis thoob, cov kws tshawb fawb kuj pom ib qho thib ob," dav" EPR kos npe cuam tshuam los ntawm lub teeb raug, cuam tshuam nrog ntau ntau dopant atoms dua li muaj qhov tsis xws luag. Lawv xav tias tsis yog txhua qhov kev hloov pauv atomic tshwm sim los ntawm lub teeb coj mus rau LID.

Cov tswv yim tsim los kawm LID tuaj yeem txuas ntxiv los nthuav tawm lwm hom kev degrading tsis xws luag hauv silicon solar cells thiab lwm yam khoom siv semiconductor siv hauv photovoltaics suav nrog cadmium telluride thiab perovskites, cov kws tshawb fawb tau sau tseg.

Lub Chaw Haujlwm Solar Energy Technologies hauv Department of Energy tau pab nyiaj rau kev tshawb fawb.