Waa maxay mabda'a iftiiminta iftiinka ee nalalka LED?

Waa maxay mabda'a iftiiminta iftiinka ee nalalka LED? Laydhka LED-ku waa qalabka elektroluminescent semiconductor chip, kaas oo lagu daaweeyay gunta oo leh xabag qalin ah ama koollo cad, ka dibna lagu xidho chip-ka iyo looxa wareegga oo leh fiilooyin qalin ama dahab ah, waxaana lagu shaabadeeyey resin epoxy oo ku wareegsan si loo ilaaliyo xadhigga gudaha gudaha. Shaqada, qolofka ayaa lagu rakibay ugu dambeyntii, sidaas darteed caabbinta naxdinta leh ee nalka LED waa mid wanaagsan. 1. Qaab dhismeedka laambada Mid ka mid ah qaababka ugu muhiimsan ee iftiimiya iftiinka LED-ka (Light Emitting Diode) laambada waa laambada cabbirka digirta mung ee gudaha laambada. In kasta oo xajmigiisu yar yahay, haddana shaqadeedu ma yara.

Ka dib marka la soo koobo qaab dhismeedka tusaha laambada LED-ka, waxaanu heli doonaa maraq le'eg iniin sisinta. Qaab dhismeedka jajabku waa mid aad u adag, waxaana loo kala qaybiyaa dhowr lakab: lakabka sare ee Z waxa loo yaqaan lakabka P-type semiconductor Layer, lakabka dhexe waa lakabka iftiiminaya, lakabka hoose ee Z waxaa loo yaqaannaa lakabka N-type semiconductor. Haddaba, sidee buu iftiinka LED-ku u sii daayaa? 2. Mabda'a iftiinka iftiinka Marka laga eego aragtida jireed: marka hadda uu marayo wafer, elektaroonnada ku jira semiconductor-ka nooca N iyo godadka P-nooca semiconductor-ka ayaa si ba'an isugu dhacaya waxayna dib u soo celiyaan lakabka iftiiminaya si ay u dhaliyaan photons, taas oo soo saarta tamarta qaabka photons (ie, iftiinka aad aragto).

LED LED waxaa sidoo kale loo yaqaannaa diode iftiin leh, muggiisu aad ayuu u yar yahay oo aad u jilicsan, kuma habboona in si toos ah loo isticmaalo. Markaa naqshadeeyuhu wuxuu ku daray qolof ilaalinaysa oo ku xidhay gudaha, sidaas darteed samaynta laambad LED ah oo si fudud loo isticmaali karo. Ka dib markii la isku xiro laambad badan oo LED ah, nalal kala duwan ayaa la samayn karaa.

3. Nalalka LED-ka ee midabada kala duwan Semiconductors-ka qalabyada kala duwan waxay soo saari doonaan midabyo kala duwan oo iftiin ah, sida iftiinka cas, iftiinka cagaaran, iftiinka buluuga ah iyo wixii la mid ah. Si kastaba ha ahaatee, ma jiro wax semiconductor ah oo soo saari kara iftiin cad ilaa hadda. Laakin sidee loo soo saaraa laambada cad ee LED-ka ee aan inta badan isticmaalno? 4. Jiilka nalalka cadcad ee LED Halkan waxaan u baahanahay inaan xusno abaalmarinta Nobel - Dr. Shuji Nakamura.

Waxa uu ikhtiraacay LED-ka buluugga ah, kaas oo sidoo kale sees gaar ah u dhigay LED-ka cad. Iyada oo ku saleysan waxtarkan muhiimka ah, waxaa lagu abaalmariyay abaalmarinta Nobel Prize ee Fiisigiska ee 2014. Marka loo eego sida LED-yada buluuga ah loogu beddelo LEDs cad, sababta ugu weyn ayaa ah in uu jiro lakab dheeri ah oo fosfoor ah oo ku jira chip-ka.

Mabda'a iftiinka ifaya ee aasaasiga ah wax badan iskamay beddelin: Inta u dhaxaysa laba lakab oo semiconductor ah, electrons iyo godad ayaa isku dhaca oo dib isugu noqda si ay u soo saaraan sawir-qaadayaal buluug ah lakabka iftiiminaya. Qayb ka mid ah iftiinka buluuga ah ee la soo saaray ayaa dhex mari doona daaha fluorescent oo si toos ah loo sii daayo; qaybta soo hartay waxay ku dhufan doontaa daaha fluorescent waxayna la falgali doontaa si ay u soo saarto sawiro jaale ah. Iftiinka cad waxaa la soo saaraa iyadoo la isku darayo (isku-darka) sawir-qaadayaasha buluugga ah iyo sawir-qaadaha jaalaha ah.

Waqtigan xaadirka ah, kala duwanaanta codsiga ee nalalka LED waa mid aad u badan. Qaadashada Xinshengkai Optoelectronics sida tusaale ahaan, strips nalka LED soo saaray waxaa si weyn loo isticmaalaa in decoration gudaha iyo dibadda, qaabeynta goobta jidadka, counters dahabka, jardiinooyin, baabuurta, barkadaha, calamadaha advertising, hotels, suuqyada shopping, KTV, meelaha firaaqada, iwm Marka la barbar dhigo qalabka nalalka dhaqanka, nalalka LED waa dheeraad ah oo casri ah iyo moodada, oo waxay ku jiraan alaabta nolosha.