OLED ke khutsufatso ea Organic Light Emitting Diode, e bolelang "Organic Light Emitting display technology" ka Sechaena.Mohopolo ke hore organic light-emitting layer e pakeng tsa li-electrode tse peli.Ha li-electrone tse ntle le tse mpe li kopana le lintho tse phelang, li ntša khanya.Mohaho oa motheo oaOLED ke ho etsa lera la lintho tse entsoeng ka leseli tse hlahisoang ke khanya tse mashome a nanometers tse teteaneng holim'a khalase ea indium tin oxide (ITO) e le lesela le ntšang khanya.Ka holim'a lesela le ntšang leseli ke lera la li-electrode tsa tšepe tse nang le mosebetsi o fokolang, ho etsa mohaho o kang sandwich.
ponts'o ea theknoloji e phahameng ea OLED
Substrate (polasetiki e bonaletsang, khalase, foil) - Substrate e sebelisoa ho ts'ehetsa OLED eohle.
Anode (TRANSPARENT) - Anode e felisa li-electrone (e eketsa "likoti" tsa elektronike) ha hona joale e phalla ka sesebelisoa.
Hole transport layer - Lera lena le entsoe ka limolek'hule tsa lintho tse phelang tse tsamaisang "likoti" ho tloha ho anode.
Lera la Luminescent - Lera lena le entsoe ka limolek'hule tsa lintho tse phelang (ho fapana le lihlopha tsa conductive) moo ts'ebetso ea luminescence e etsahalang.
Lera la lipalangoang tsa elektrone - Lera lena le entsoe ka limolek'hule tsa lintho tse phelang tse tsamaisang lielektrone ho tloha ho cathode.
Li-cathodes (tse ka bang pepeneneng kapa tse opaque, ho itšetlehile ka mofuta oa OLED) - Ha hona joale ho phalla ka sesebelisoa, li-cathodes li kenya li-electrone ho potoloha.
Ts'ebetso ea luminescence ea OLED hangata e na le mekhahlelo e mehlano ea mantlha:
① Ente ea Carrier: Tlas'a ts'ebetso ea lebala la motlakase le kantle, lielektrone le masoba li kenngoa ka har'a lera le sebetsang le kentsoeng lipakeng tsa li-electrode ho tloha ho cathode le anode, ka ho latellana.
② Lipalangoang tsa lipalangoang: li-elektronike tse kentsoeng le masoba li falla ho tloha karolong ea lipalangoang tsa elektronike le lera la lipalangoang tsa sekoti ho ea lera la luminescent, ka ho latellana.
③ Recombination ea Carrier: ka mor'a hore lielektrone le masoba li kenngoe ka har'a lesela la luminescent, li tlamahanngoa ho etsa lipara tsa likoti tsa elektronike, ke hore, li-excitons, ka lebaka la ketso ea matla a Coulomb.
④ Ho falla ha Exciton: Ka lebaka la ho se leka-lekane ha lipalangoang tsa elektronike le mekoti, sebaka se seholo sa sebopeho sa exciton hangata ha se koahele lera lohle la luminescence, kahoo phallo e pharalletseng e tla etsahala ka lebaka la khatello ea maikutlo.
⑤Mahlaseli a Exciton a thefula li-photon: Phetoho ea exciton radiative e ntšang lifoto le ho ntša matla.
Nako ea poso: Aug-11-2022
