Qhov tsaus nti, velvety nto ntawm lub siab - kev ua haujlwm hnub ci cell tsis yog txheej txheej; Nws yog ib tug hav zoov ntawm microscopic pyramids etched ncaj qha mus rau hauv silicon los ntawm ib tug kub, concentrated tov ntawm poov tshuaj hydroxide. Lub rhaub dej kub uas ua kom lub qhov cub ua kom sov no ntawm nws qhov kub thiab txias ua haujlwm yuav tsum tiv taus cov alkali zoo li silicon nws tus kheej, thiab nws yuav tsum tsis txhob ua kom paub cov hlau ions uas yuav kis tau rau cov khoom siv semiconductor.
HauvPTFE rhaub solar cell texturing alkaline etchantsystems, thermal stability thiab tshuaj purity yog qhov tseem ceeb sib npaug rau kev ua tiav lub teeb zoo ib yam -tapping nto morphology.
Alkaline Texturing da dej rau Monocrystalline Silicon
Solar cell texturing feem ntau yog ua nyob rau hauv ib qho aqueous alkaline tov uas muaj:
1-5% potassium hydroxide (KOH) lossis sodium hydroxide (NaOH)
Kev khiav hauj lwm kub ntawm 70-90 degree
Tswj additives los tswj etch tus nqi thiab nto uniformity
Cov txheej txheem yog anisotropic, lub ntsiab lus silicon yog etched nyiam nyob rau hauv crystallographic dav hlau, tsim random pyramidal cov qauv uas txo cov nto reflectance thiab txhim khu lub teeb ntxiab.
Qhov kub thiab txias yog qhov hloov pauv hloov. Qhov sib txawv ntawm ob peb degrees tuaj yeem hloov pauv qhov loj ntawm pyramid, cuam tshuam ncaj qha rau kev ua haujlwm kho qhov muag thiab kev ua haujlwm hluav taws xob ntawm lub xov tooj kawg.
PTFE Heater Performance hauv Alkaline Etchants
PTFE immersion rhaub yog dav siv vim lawv tshwj xeeb tshuaj inertness nyob rau hauv muaj zog alkaline ib puag ncig.
Tshuaj Compatibility thiab Purity Control
PTFE sheath muab:
Ua tiav kev tiv thaiv kub KOH thiab NaOH kev daws teeb meem
Zero tso cov hlau ions rau hauv da dej
ruaj khov ntev -lub sij hawm kev ua tau zoo nyob rau hauv siab -kub caustic tej yam kev mob
Qhov kev coj dawb huv no yog qhov tseem ceeb vim tias muaj cov kab mob sib kis tau zoo tuaj yeem ua kom paub cov chaw sib txuas hauv silicon, txo cov neeg nqa khoom lub neej thiab txo cov kev ua haujlwm photovoltaic.
Nyob rau hauv lub hnub ci cell Hoobkas, lub PTFE rhaub yog ib tug uas ntsiag to, chemically invisible khub nyob rau hauv capturing lub hnub.
Surface Stability thiab Fouling Resistance
Lub zog qis ntawm PTFE pab txhawb kev ua haujlwm ruaj khov:
Txo adhesion ntawm silicate thiab cov tshuaj tiv thaiv los ntawm - khoom
Qhov tsawg kawg nkaus scale tsim thaum lub sij hawm ncua ntau lawm khiav
Kev ntxuav yooj yim ntawm cov txheej txheem cycles
Qhov no ua kom ntseeg tau tias kev hloov pauv thermal tseem nyob ib puag ncig thiab qhov chaw overheating yog txo qis.
Txheej txheem tswj thiab kub sib xws
Uniform etching thoob plaws tag nrho cov wafers yuav tsum nruj tswj xyuas thermal tej yam kev mob.
Qhov tseem ceeb ntawm kaw -Loop Control
Ib qho tshwj xeeb PID- tswj cov cua sov feem ntau yog siv los tswj kev ruaj ntseg ntawm da dej.
Cov txheej txheem ceeb toom: Cov kev cai kub thiab txias
Kaw -Kev tswj qhov kub thiab txias yog qhov tseem ceeb, nrog rau kev tswj hwm PID kev tswj xyuas qhov kub thiab txias hauv ± 0.5 degree.
Cov theem ntawm kev tswj xyuas kom paub meej:
Stable etch kinetics thoob plaws tag nrho batch
Raws li pyramid morphology thiab ntom
Txo wafer - rau -wafer variation nyob rau hauv reflectance
Txawm tias me me thermal drift tuaj yeem ua rau tsis yog -ib puag ncig textures, cuam tshuam rau hauv qab ntawm tes ua haujlwm.
Kev cuam tshuam rau Solar Cell Efficiency
Lub pyramidal kev ntxhib los mos tsim thaum lub sij hawm alkaline etching:
Ua kom qhov ntev ntawm txoj kev kho qhov muag rau cov photons tuaj
Txo qhov kev cuam tshuam saum npoo los txhim kho lub teeb pom kev zoo
Txhim kho tag nrho photovoltaic conversion efficiency
PTFE cov cua sov pab txhawb kev tsis ncaj ncees tab sis tseem ceeb los ntawm kev tswj xyuas qhov tseeb thermal ib puag ncig yuav tsum tau ua kom rov ua dua qhov chaw.
Xaus
PTFE immersion heaters ua lub luag haujlwm tseem ceeb hauv kev tsim cov khoom loj ntawm siab -kev ua tau zoo crystalline silicon hnub ci hlwb. Los ntawm kev muab tshuaj lom neeg tsis muaj zog, hlau -dawb, thiab cov cua sov tsis muaj zog, cov tshuab no ua kom cov txheej txheem alkaline etching tsim cov teeb pom kev zoo-tapping pyramid cov qauv tseem ceeb rau kev ua haujlwm photovoltaic.
Kev hloov pauv thoob ntiaj teb mus rau lub hnub ci zog tsis yog nyob ntawm tus qauv tsim semiconductor nkaus xwb tab sis kuj tseem nyob ntawm cov cuab yeej tsim khoom muaj peev xwm ua kom muaj sia nyob ib puag ncig tshuaj lom neeg tsis muaj paug rau cov khoom. PTFE heaters sawv cev rau ib qho ntawm lub hauv paus technologies uas tso cai rau precision chemistry thiab loj -scale renewable zog tsim kom muaj kev ntseeg siab.
