Highly Efficient Light‐Emitting Diode of Graphene Quantum Dots Fabrica…
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논문명 | Highly Efficient Light‐Emitting Diode of Graphene Quantum Dots Fabricated from Graphite Intercalation Compounds |
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저자 | Sung Ho Song, Min‐Ho Jang, Jin Chung, Sung Hawn Jin, Bo Hyun Kim, Seung‐Hyun Hur, Seunghyup Yoo, Yong‐Hoon Cho, Seokwoo Jeon |
저널명 | Advanced Optical Materials |
게재년월 | 2014/11 |
Vol. pp | 2권 11호 페이지 1016-1023 |
Graphene quantum dot (GQD) light‐emitting diodes (GQD‐LEDs) are shown to have an electroluminescence exceeding 1000 cd m‐2. These devices are possible due to a novel synthesis method to create GQDs with minimal oxidation, guaranteeing high quantum yields via the solvothermal formation of graphite intercalation compounds between graphite powder and sodium potassium tartrate. The GQDs are incorporated into polymeric host layers in a multilayer device and irradiate blue (~400 nm) emission.