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Weijie Zhao
Researcher at Nanyang Technological University
Publications - 58
Citations - 13455
Weijie Zhao is an academic researcher from Nanyang Technological University. The author has contributed to research in topics: Monolayer & Exciton. The author has an hindex of 32, co-authored 53 publications receiving 10895 citations. Previous affiliations of Weijie Zhao include National University of Singapore & Chinese Academy of Sciences.
Papers
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Journal ArticleDOI
Perovskite light-emitting diodes with external quantum efficiency exceeding 20 per cent
Kebin Lin,Jun Xing,Li Na Quan,F. Pelayo García de Arquer,Xiwen Gong,Jianxun Lu,Liqiang Xie,Weijie Zhao,Di Zhang,Chuanzhong Yan,Wenqiang Li,Xinyi Liu,Yan Lu,Jeffrey Kirman,Edward H. Sargent,Qihua Xiong,Zhanhua Wei +16 more
TL;DR: In this article, the authors describe visible-light-emitting perovskite LEDs that surpass the quantum efficiency milestone of 20.3 per cent, which is achieved by a new strategy for managing the compositional distribution in the device.
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Evolution of Electronic Structure in Atomically Thin Sheets of WS2 and WSe2
Weijie Zhao,Zohreh Ghorannevis,Leiqiang Chu,Minglin Toh,Christian Kloc,Ping-Heng Tan,Goki Eda +6 more
TL;DR: In this paper, the authors report differential reflectance and PL spectra of mono-to-few-layer Molybdenum disulfide (MoS2) and WSe2 that indicate that the band structure of these materials undergoes similar indirect-todirect gap transition when thinned to a single monolayer.
Journal ArticleDOI
Evolution of Electronic Structure in Atomically Thin Sheets of WS2 and WSe2
Weijie Zhao,Zohreh Ghorannevis,Leiqiang Chua,Minglin Toh,Christian Kloc,Ping-Heng Tan,Goki Eda +6 more
TL;DR: In this paper, differential reflectance and photoluminescence spectra of mono- to few-layer Molybdenum disulphide (MoS2) and WSe2 were analyzed.
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Lattice dynamics in mono- and few-layer sheets of WS2 and WSe2
Weijie Zhao,Zohreh Ghorannevis,Kiran Kumar Amara,Jing Ren Pang,Minglin Toh,Xin Zhang,Christian Kloc,Ping-Heng Tan,Goki Eda +8 more
TL;DR: In this paper, the Raman spectra of atomically thin sheets of WS2 and WSe2, isoelectronic compounds of MoS2, in the mono-to few-layer thickness regime were analyzed.
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The shear mode of multilayer graphene
Ping-Heng Tan,W. P. Han,Weijie Zhao,Zhenhua Wu,Kai Chang,H. Wang,Y. F. Wang,Nicola Bonini,Nicola Marzari,Nicola M. Pugno,Nicola M. Pugno,Giorgio Savini,Antonio Lombardo,Andrea C. Ferrari +13 more
TL;DR: The interlayer shear mode of FLGs, ranging from bilayer graphene (BLG) to bulk graphite, is uncovered, and it is suggested that the corresponding Raman peak measures the interlayer coupling.