Qhov kev tshawb nrhiav kom muaj txiaj ntsig zoo dua nyob rau hauv lub hnub ci zog hloov pauv tau ua rau kev tshawb nrhiav tshaj li ib txwm siv silicon-raws li pn hlws ris hnub ci hlwb. Ib txoj kev vam meej nyob hauv Schottky diode hnub ci hlwb, muab txoj hauv kev tshwj xeeb rau kev nqus lub teeb thiab tsim hluav taws xob.
Nkag siab txog Cov Ntsiab Lus
Cov hnub ci vaj huam sib luag cia siab rau pn kev sib tshuam, qhov twg qhov zoo them (p-type) thiab tsis zoo them (n-hom) semiconductor ntsib. Nyob rau hauv sib piv, Schottky diode hnub ci hlwb siv ib tug hlau-semiconductor hlws ris. Qhov no tsim Schottky barrier, tsim los ntawm qhov sib txawv zog theem ntawm cov hlau thiab semiconductor. Lub teeb tawm tsam lub cell excites electrons, tso cai rau lawv dhia qhov teeb meem no thiab ua rau muaj hluav taws xob tam sim no.
Qhov zoo ntawm Schottky Diode Solar Cells
Schottky diode solar cells muaj ntau qhov zoo dua li cov kab ke pn hlws ris:
Kev Tsim Nyog-Kev Tsim Nyog: Schottky hlwb feem ntau yooj yim rau kev tsim khoom piv rau pn hlws ris, uas ua rau cov nqi qis dua.
Enhanced Light Traping: Cov hlau sib cuag hauv Schottky hlwb tuaj yeem txhim kho lub teeb ntxiab hauv lub xov tooj ntawm tes, tso cai rau kev nqus lub teeb kom zoo dua.
Faster Charge Tsheb thauj mus los: Schottky barrier tuaj yeem pab txhawb kev txav ceev ntawm cov duab tsim hluav taws xob, muaj peev xwm ua kom muaj kev hloov pauv tau zoo.
Kev Tshawb Fawb Cov Khoom Siv rau Schottky Solar Cells
Cov kws tshawb fawb tau nquag tshawb nrhiav ntau yam ntaub ntawv siv rau hauv Schottky hnub ci hlwb:
Cadmium Selenide (CdSe): Thaum lub sij hawm tam sim no CdSe Schottky hlwb nthuav tawm qhov ua tau zoo nyob ib puag ncig 0.72%, kev nce qib hauv cov txheej txheem tsim xws li electron-beam lithography muab cov lus cog tseg rau kev txhim kho yav tom ntej.
Nickel Oxide (NiO): NiO ua haujlwm zoo li cov khoom siv p-hom hauv Schottky hlwb, ua tiav cov txiaj ntsig txog li 5.2%. Nws cov khoom siv dav bandgap txhim kho lub teeb nqus thiab kev ua haujlwm ntawm tes tag nrho.
Gallium Arsenide (GaAs): GaAs Schottky hlwb tau ua kom pom kev ua tau zoo tshaj 22%. Txawm li cas los xij, kev ua tiav qhov kev ua tau zoo no yuav tsum tau ua tib zoo tsim cov qauv hlau-insulator-semiconductor (MIS) nrog cov txheej txheem oxide uas raug tswj hwm.
Cov kev sib tw thiab cov kev taw qhia yav tom ntej
Txawm hais tias lawv muaj peev xwm, Schottky diode hnub ci hlwb ntsib qee qhov teeb meem:
Recombination: Recombination ntawm electron-qhov khub nyob rau hauv lub cell yuav txwv efficiency. Kev tshawb fawb ntxiv yog xav tau los txo qhov kev poob qis.
Barrier Height Optimization: Schottky barrier qhov siab cuam tshuam rau kev ua tau zoo. Nrhiav qhov zoo tshaj qhov sib npaug ntawm qhov teeb meem siab rau kev sib cais kom tau txais txiaj ntsig thiab qhov cuam tshuam tsawg rau kev poob qis yog qhov tseem ceeb heev.
Xaus
Schottky diode solar cells tuav lub peev xwm loj heev rau kev hloov pauv hnub ci zog hloov pauv. Lawv txoj kev tsim khoom yooj yim dua, txhim kho lub peev xwm nqus lub teeb, thiab kev thauj mus los sai dua ua rau lawv muaj kev vam meej technology. Raws li kev tshawb fawb delves tob rau hauv cov khoom optimization thiab recombination mitigation tswv yim, peb tuaj yeem cia siab tias yuav pom Schottky diode hnub ci hlwb tawm los ua ib qho tseem ceeb hauv lub neej yav tom ntej ntawm lub zog huv.
Post lub sij hawm: Jun-13-2024