Solution‐processable double‐layered ionic p‐i‐n organic light‐emitting diodes |
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| Authors: | Byoungchoo Park Yoon Ho Huh Jongwoon Park Sang Woo Lee Woo Tack Han Yung Jin Park In Tae Kim |
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| Affiliation: | 1. Department of Electrophysics, Kwangwoon University, Korea.;2. National Center for Nanoprocess and Equipment, Korea Institute of Industrial Technology, Korea.;3. Department of Chemistry, Kwangwoon University, 447‐1 Wolgye‐dong, Nowon‐ku, Seoul 139‐701 Korea. |
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| Abstract: | Abstract— Solution‐processed double‐layered ionic p‐i‐n organic light‐emitting diodes (OLEDs), comprised of an emitting material layer doped with an organometallic green phosphor and a photo‐cross‐linked hole‐transporting layer doped with photo‐initiator is reported. The fabricated OLEDs were annealed using simultaneous thermal and electrical treatments to form a double‐layered ionic p‐i‐n structure. As a result, an annealed double‐layered OLED with a peak brightness over 20,000 cd/m2 (20 V, 390 mA/cm2) and a peak efficiency of 15 cd/A (6 V, 210 cd/m2) was achieved. |
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| Keywords: | OLED HOMO LUMO HTL EML OTPD |
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