Yunyu Wang
Chinese Academy of Sciences
20 Papers
48 Citations
Yunyu Wang is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Graphene & Epitaxy. The author has an hindex of 8, co-authored 19 publications.
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Papers
Improved Epitaxy of AlN Film for Deep-Ultraviolet Light-Emitting Diodes Enabled by Graphene.
Zhaolong Chen,Zhaolong Chen,Zhiqiang Liu,Tongbo Wei,Shenyuan Yang,Zhipeng Dou,Yunyu Wang,Haina Ci,Hongliang Chang,Yue Qi,Jianchang Yan,Junxi Wang,Yanfeng Zhang,Peng Gao,Jinmin Li,Zhongfan Liu +15 more
TL;DR: This study finds that pyrrolic nitrogen in graphene introduced by a plasma treatment greatly facilitates the AlN nucleation and enables fast growth of a mirror-smooth single-crystal film in a very short time, thus leading to a largely reduced cost.
139
High-Brightness Blue Light-Emitting Diodes Enabled by a Directly Grown Graphene Buffer Layer.
Zhaolong Chen,Xiang Zhang,Zhipeng Dou,Zhipeng Dou,Tongbo Wei,Zhiqiang Liu,Yue Qi,Haina Ci,Yunyu Wang,Yang Li,Hongliang Chang,Jianchang Yan,Shenyuan Yang,Yanfeng Zhang,Junxi Wang,Peng Gao,Jinmin Li,Zhongfan Liu +17 more
TL;DR: The GaN growth on Gr buffered sapphire only requires one-step growth, which largely shortens the MOCVD growth time, and may pave a new way for applications of Gr films and bring several disruptive technologies for epitaxial growth of GaN film and its applications in high-brightness LEDs.
105
Enhancement of Heat Dissipation in Ultraviolet Light-Emitting Diodes by a Vertically Oriented Graphene Nanowall Buffer Layer.
Haina Ci,Hongliang Chang,Ruoyu Wang,Tongbo Wei,Yunyu Wang,Zhaolong Chen,Yuanwei Sun,Zhipeng Dou,Zhiqiang Liu,Jinmin Li,Peng Gao,Zhongfan Liu +11 more
TL;DR: It is found that VG nanowalls can effectively enhance the heat dissipation between an AlN film and a sapphire substrate in the longitudinal direction because of their unique vertical structure and good thermal conductivity.
90
Fast Growth of Strain-Free AlN on Graphene-Buffered Sapphire
Yue Qi,Yunyu Wang,Zhenqian Pang,Zhipeng Dou,Tongbo Wei,Peng Gao,Shishu Zhang,Xiaozhi Xu,Zhenghua Chang,Bing Deng,Shulin Chen,Zhaolong Chen,Haina Ci,Ruoyu Wang,Fuzhen Zhao,Jianchang Yan,Xiaoyan Yi,Kaihui Liu,Hailin Peng,Zhiqiang Liu,Lianming Tong,Jin Zhang,Yujie Wei,Jinmin Li,Zhongfan Liu +24 more
TL;DR: The role of graphene acting as a buffer layer for growth of an AlN film on a sapphire substrate is revealed and valuable insights into the efficient applications of graphene in the light-emitting diode industry are offered.
83
Van der Waals epitaxy of GaN-based light-emitting diodes on wet-transferred multilayer graphene film
Yang Li,Yun Zhao,Tongbo Wei,Zhiqiang Liu,Ruifei Duan,Yunyu Wang,Xiang Zhang,Qingqing Wu,Jianchang Yan,Xiaoyao Yi,Guodong Yuan,Junxi Wang,Jimin Li +12 more
TL;DR: In this article, the authors investigated the possibility of using multilayer graphene to solve large mismatch problems between sapphire and nitride and further studied the effects of a multi-layer graphene interlayer on the optical and electrical properties of LEDs.
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