Tae-Woo Lee is an associate professor in the Department of Materials Science and Engineering at Seoul National University, Korea. He received his Ph.D in chemical engineering from KAIST, Korea in February 2002. Then, he joined Bell Laboratories, USA as a postdoctoral researcher in 2002. From September 2003 to August 2008, he worked in Samsung Advanced Institute of Technology, Samsung Electronics as a member of research staff. From August 2008 to August 2016, he worked as assistant and associate professor at Pohang University of Science and Technology (POSTECH), Korea. He received a prestigious Korea Young Scientist Award from the President of Korea in 2008 and The Scientist of the Month Award from the ministry of science, ICT and future planning in 2013. He is author and co-author of 139 papers including Science, Nature Photonics, Science Advances, Nature Communications, PNAS, Energy and Environmental Science, Angewandte Chemie, Advanced Materials, Nano Letters, and Advanced Functional Materials, as well as inventor and co-inventor of 339 patents (155 Korean patents and 184 international patents). His research focuses on organic, organic-inorganic hybrid, perovskite, and carbon & 2D materials and their applications to flexible electronics, printed electronics, displays, solid-state lightings, solar energy conversion devices, and neuromorphic devices.

• 1. Introduction2. Structure and properties of graphene 3. Preparation of graphene electrod4. Graphene doping for electrode application 5. Technical issues and integration scheme for graphene electrode OLED panels 6. Graphene-based buffer layers for light-emitting diodes 7. Graphene-based Quantum Dot Emitters for Light-Emitting Diodes8. Graphene-Based composite emitter 9. Stretchable graphene electrodes 10. Conclusions and outlook

Tae-Woo Lee is an associate professor in the Department of Materials Science and Engineering at Seoul National University, Korea. He received his Ph.D in chemical engineering from KAIST, Korea in February 2002. Then, he joined Bell Laboratories, USA as a postdoctoral researcher in 2002. From September 2003 to August 2008, he worked in Samsung Advanced Institute of Technology, Samsung Electronics as a member of research staff. From August 2008 to August 2016, he worked as assistant and associate professor at Pohang University of Science and Technology (POSTECH), Korea. He received a prestigious Korea Young Scientist Award from the President of Korea in 2008 and The Scientist of the Month Award from the ministry of science, ICT and future planning in 2013. He is author and co-author of 139 papers including Science, Nature Photonics, Science Advances, Nature Communications, PNAS, Energy and Environmental Science, Angewandte Chemie, Advanced Materials, Nano Letters, and Advanced Functional Materials, as well as inventor and co-inventor of 339 patents (155 Korean patents and 184 international patents). His research focuses on organic, organic-inorganic hybrid, perovskite, and carbon & 2D materials and their applications to flexible electronics, printed electronics, displays, solid-state lightings, solar energy conversion devices, and neuromorphic devices.

• 1. Introduction2. Structure and properties of graphene 3. Preparation of graphene electrod4. Graphene doping for electrode application 5. Technical issues and integration scheme for graphene electrode OLED panels 6. Graphene-based buffer layers for light-emitting diodes 7. Graphene-based Quantum Dot Emitters for Light-Emitting Diodes8. Graphene-Based composite emitter 9. Stretchable graphene electrodes 10. Conclusions and outlook

Tae-Woo Lee is an associate professor in the Department of Materials Science and Engineering at Seoul National University, Korea. He received his Ph.D in chemical engineering from KAIST, Korea in February 2002. Then, he joined Bell Laboratories, USA as a postdoctoral researcher in 2002. From September 2003 to August 2008, he worked in Samsung Advanced Institute of Technology, Samsung Electronics as a member of research staff. From August 2008 to August 2016, he worked as assistant and associate professor at Pohang University of Science and Technology (POSTECH), Korea. He received a prestigious Korea Young Scientist Award from the President of Korea in 2008 and The Scientist of the Month Award from the ministry of science, ICT and future planning in 2013. He is author and co-author of 139 papers including Science, Nature Photonics, Science Advances, Nature Communications, PNAS, Energy and Environmental Science, Angewandte Chemie, Advanced Materials, Nano Letters, and Advanced Functional Materials, as well as inventor and co-inventor of 339 patents (155 Korean patents and 184 international patents). His research focuses on organic, organic-inorganic hybrid, perovskite, and carbon & 2D materials and their applications to flexible electronics, printed electronics, displays, solid-state lightings, solar energy conversion devices, and neuromorphic devices.

• 1. Introduction2. Structure and properties of graphene 3. Preparation of graphene electrod4. Graphene doping for electrode application 5. Technical issues and integration scheme for graphene electrode OLED panels 6. Graphene-based buffer layers for light-emitting diodes 7. Graphene-based Quantum Dot Emitters for Light-Emitting Diodes8. Graphene-Based composite emitter 9. Stretchable graphene electrodes 10. Conclusions and outlook