Cov ncauj lus kom ntxaws qhia txog Monocrystalline Silicon Solar Cells

Monocrystalline silicon hais txog tag nrho crystallization ntawm silicon cov ntaub ntawv nyob rau hauv daim ntawv ntawm ib tug crystals. Nws yog cov khoom siv hluav taws xob photovoltaic uas nquag siv tam sim no. Monocrystalline silicon solar cells yog cov thev naus laus zis tshaj plaws ntawm silicon-based solar cells. Piv nrog polycrystalline silicon thiab amorphous silicon hnub ci hlwb, lawv cov photoelectric Lub conversion efficiency yog siab tshaj. Kev tsim cov khoom siv hluav taws xob zoo monocrystalline silicon hlwb yog ua raws li cov khoom siv zoo monocrystalline silicon thiab cov txheej txheem ua tiav.
Monocrystalline silicon hnub ci hlwb siv monocrystalline silicon rods nrog ib tug purity txog li 99.999% raws li raw cov ntaub ntawv, uas kuj nce tus nqi thiab yog ib qho nyuaj rau siv nyob rau hauv loj scale. Yuav kom txuag tau tus nqi, cov khoom yuav tsum tau siv tam sim no monocrystalline silicon solar cells tau so, thiab qee qhov ntawm lawv siv lub taub hau thiab tus Tsov tus tw cov ntaub ntawv ua tiav los ntawm cov khoom siv semiconductor thiab pov tseg ib leeg siv lead ua silicon cov ntaub ntawv, los yog ua monocrystalline silicon rau hnub ci hlwb tom qab. daim duab complex. Monocrystalline silicon wafer texturing thev naus laus zis yog ib qho txiaj ntsig zoo los txo qis lub teeb poob thiab txhim kho cell efficiency.
Txhawm rau txo cov nqi tsim khoom, lub hnub ci rau hauv av siv cov hnub ci-qib monocrystalline silicon rods, thiab cov khoom ntsuas kev ua tau zoo tau so. Qee tus tuaj yeem siv lub taub hau thiab tus Tsov tus tw cov ntaub ntawv thiab pov tseg ib leeg siv lead ua silicon cov ntaub ntawv ua tiav los ntawm cov khoom siv semiconductor, thiab ua ib qho siv lead ua silicon rods nplooj siab rau hnub ci hlwb tom qab redrawing. Txiav monocrystalline silicon rods rau hauv cov hlais, feem ntau txog 0.3 hli tuab. Silicon wafers tau ua tiav rau hauv silicon wafers raw khoom los ntawm cov txheej txheem xws li polishing thiab tu.
To process solar cells, it is first necessary to dope and diffuse on the silicon wafer, and the general dopant is a trace amount of boron, phosphorus, antimony, etc. Diffusion is performed in a high temperature diffusion furnace made of quartz tubes. In this way, a P>N junction yog tsim ntawm silicon wafer. Tom qab ntawd siv txoj kev tshuaj ntsuam luam ntawv, cov nyiaj npaj tau zoo tau muab luam tawm rau ntawm silicon wafer los ua cov kab sib chaws, tom qab sintering, rov qab electrode yog ua nyob rau tib lub sijhawm, thiab qhov chaw tiv thaiv kev cuam tshuam yog coated rau ntawm qhov chaw nrog cov khoom siv. kab sib chaws los tiv thaiv ib tug loj tus naj npawb ntawm photons xav tawm ntawm tus silicon wafer nto.
Yog li, ib daim ntawv monolithic ntawm monocrystalline silicon solar cell yog tsim. Tom qab kuaj xyuas thiab tshuaj xyuas, ib daim tuaj yeem sib sau ua ke rau hauv lub hnub ci cell modules (solar cell panels) raws li qhov xav tau tshwj xeeb, thiab qee qhov tso zis hluav taws xob thiab tam sim no tuaj yeem tsim los ntawm kev sib txuas hauv series thiab nyob rau hauv parallel. Thaum kawg, nws yog encapsulated nrog thav duab thiab cov ntaub ntawv. Raws li kev tsim qauv, tus neeg siv tuaj yeem tsim lub hnub ci cell modules rau hauv lub hnub ci cell square arrays ntawm ntau qhov ntau thiab tsawg, tseem hu ua solar cell arrays. Lub photoelectric conversion efficiency ntawm monocrystalline silicon hnub ci hlwb yog li ntawm 15%, thiab cov kev soj ntsuam tau ntau tshaj 20%.