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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
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.