Lub ntiaj teb no photovoltaic cell lag luam yog dominated los ntawm crystalline silicon cell. Txhim kho kev ua tau zoo thiab txo tus nqi ntawm crystalline silicon roj teeb yog tus yuam sij rau kev txhim kho kev lag luam photovoltaic. Los ntawm qhov pib loj-tsim aluminium back-field hlwb, mus rau PERC (emitter passivation thiab rov qab hu), mus rau HJT (heterojunction ntawm intrinsic amorphous txheej) hlwb thiab TOPCon (tunnel oxide passivation tiv tauj hlwb), thiab rau yav tom ntej laminated hlwb, lub efficiency ntawm photovoltaic hlwb tau nce mus txog qhov txwv, uas ua rau muaj kev cuam tshuam ntawm tus nqi thiab teev.
Txawm hais tias cov thev naus laus zis ntawm cov hlwb photovoltaic tau rov ua dua thiab qhov ua tau zoo tau txhim kho, lub hauv paus ntsiab lus thiab cov txheej txheem tseem ceeb ntawm crystalline silicon hlwb tsis tau hloov, uas yog, ntxuav cashmere, diffusion knot, passivation txheej, metallization plaub kauj ruam.
1) kev tu flocking tu yog tsuas yog siv los tshem tawm impurities thiab kev puas tsuaj txheej ntawm silicon wafer, flocking yog siv los tsim ib tug pyramid qauv nyob rau saum npoo ntawm silicon wafer kom txo reflectivity.
2) PN kev sib tshuam yog cov qauv tseem ceeb ntawm cov cell photovoltaic. Nws yog feem ntau haum rau homogeneous hlws ris roj teeb.
3) cov zaj duab xis passivation yog tsim nyob rau saum npoo ntawm lub xovtooj ntawm lub tshuab nqus tsev plating, uas plays lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua haujlwm ntawm tes thiab yog lub ntsiab lus pib ntawm kev txhim kho kev ua haujlwm ntawm tes.
4) Metallization yog siv los ua rau pem hauv ntej thiab nraub qaum electrodes ntawm photovoltaic cell, feem ntau yog los ntawm kev tshuaj ntsuam luam ntawv. Cov txheej txheem metallization yog ze ze rau cov txheej txheem passivation, thiab ua lub luag haujlwm tseem ceeb hauv kev txo qis cov neeg tsawg recombination thiab tsis kam tiv. Tsis tas li ntawd, kuj muaj xws li etching, nrhiav kom pom thiab lwm cov kauj ruam dav dav, nyob rau hauv cov roj teeb technology sib txawv ntawm qhov sib txawv me ntsis.