Me yasa kunna wutar lantarki a kan panel na hasken rana ke bayyana fashewar sel da ba a gani ba?

Kafin barin masana'anta, hasken rana yana shiga cikin manyan gwaje-gwaje biyu na inganci. Ɗaya shine duba gani mai sauƙi. Ɗayan kuma shine abin da muke magana akai a yau: gwajin kunna wutar lantarki. Sunan fasaha na wannan shine gwajin EL. EL yana nufin Electroluminescence.

1. Kimiyyar Bayan Gwajin EL

Sel na rana na crystalline silicon ainihin semiconductor na PN junction ne. Yana da kaddarorin photoelectric na biyu. A cikin amfaninmu na yau da kullun, hasken rana yana bugun panel, yana haifar da tasirin photovoltaic, kuma yana juya hasken wutar lantarki zuwa wutar lantarki.

Gwajin EL yana juyar da wannan tsarin jiki baya. Wani tushen wutar lantarki na waje yana shigar da wutar lantarki kai tsaye a cikin module. Wannan yana shigar da electrons da holes a cikin cell. Waɗannan masu ɗaukar caji suna sake haɗuwa a PN junction kuma suna fitar da makamashi a matsayin photons, suna haifar da tasirin electroluminescence.

Ga abin da ke faruwa. Lokacin da silicon cell ya sami wutar lantarki, hasken da yake fitarwa yana kusa da infrared, tare da tsawon wavelength kusan 1100-1150nm. Wannan takamaiman band ya fadi gaba daya a wajen ganin ɗan adam. Ba za mu iya ganin wannan hasken kwata-kwata ba. Ko da module yana da cikakken wutar lantarki kuma yana haskakawa, kawai yana kama da gilashin yau da kullun ga ido. Ba za ku ga wani haske mai haske ko duhu ba.

Shi ya sa yin amfani da wutar lantarki kawai bai isa ba. Dole ne mu dogara da ƙwararrun kyamarorin hoto na infrared. Kayan aikin EL suna amfani da kyamarorin CMOS ko CCD masu kula da infrared kusa da su tare da tace IR. Suna ɗaukar hotuna masu tsayi a cikin yanayi mai duhu gaba daya. Wannan saitin yana canza siginonin infrared marasa ganuwa zuwa hotuna masu haske da duhu a kan allo.

2. Me Ya Sa Muke Bukatar Gwajin EL?

Ka yi la'akari da shi a matsayin CT scan na hasken rana. Lalacewar da ba za ka iya gani daga waje ba ta zama bayyananne ta hanyar gwajin EL. Bari mu duba wasu lahani na EL na yau da kullun: ƙananan tsaga, sanyi soldering, da karyewar layukan grid.

Ƙananan tsage-tsage:Waɗannan ƙananan karaya ne a cikin jikin silicon da damuwa na injiniya ke haifarwa. Ƙwayar ba ta rabu gaba ɗaya ba, don haka saman yana da kyau. Amma lattice na crystal ya riga ya fashe. Tun da yake ainihin lalacewa ne ga tushen silicon, kyamarar EL tana kama shi cikin sauƙi. A cikin hoton EL, ƙaramin karaya yana bayyana a matsayin layi mai baƙi.

Sanyi Solder:Wannan yana faruwa lokacin da kyakkyawar haɗin alloy ta kasa samuwa tsakanin ribbon na soldering da babban busbar na ƙwayar. Suna taɓa juna ta injiniya, amma haɗin lantarki yana da rauni. A cikin hotunan EL, sanyi solder yana bayyana a matsayin ƙananan duhu ko layukan duhu. Yawanci za ku ga su suna tafiya tare da layukan grid, suna bayyana a matsayin layukan baƙi marasa tsari, masu karye ko faci masu digo.

Layukan Grid Masu Karye:Wani lokaci ƙananan layukan grid na azurfa a kan ƙwayar suna karye. Lokacin da wannan ya faru, hanyar tattara wutar lantarki ta yanke. Wannan kusan koyaushe lahani ne na albarkatun ƙasa. Kuna iya ganin shi a cikin binciken EL a matsayin wurare baƙi ko duhu masu tafiya a tsaye zuwa babban busbar.

Kimanin shekaru 15 da suka wuce, masu saye da wuya su nemi binciken EL. A yau, abu ne da ya zama tilas ga jigilar kwamfutoci, wanda aka gwada a cikakken ƙarfin 100% akan layin. Abubuwa kamar ƙananan tsagewa, sanyi mai sanyi, da karyewar grid za su ja da ƙarfin fitarwa na module sosai kuma su lalata amincin sa na dogon lokaci.

Ra'ayin Ooitech

Kayan aikin kula da inganci sun canza sosai don ci gaba da tsarin ƙwayoyin cuta masu inganci na zamani kamar TOPCon da HJT. Tura kwamfutoci ta hanyar gwajin EL ba kawai game da kama lahani ba ne; yana game da daidaita sigogin tabber stringer da laminator a lokaci guda. Yawan amfanin masana'anta yana ƙaruwa sosai lokacin da bayanan EL suka shiga tsakani kai tsaye cikin tsarin sarrafa babban layin samarwa don hana matsalolin damuwa na injina da ke maimaitawa.