5 Papers
W. Ma is an academic researcher from Australian National University. The author has contributed to research in topics: Chemistry & Halide. The author has an hindex of 2, co-authored 2 publications.
Chat about Author
Papers
Evidence of the direct-to-indirect band gap transition in strained two-dimensional WS 2 , MoS 2 , and WSe 2
Elena Blundo,Marco Felici,Tanju Yildirim,Giorgio Pettinari,Davide Tedeschi,A. Miriametro,Boqing Liu,W. Ma,Yuerui Lu,Antonio Polimeni +9 more
- 23 Jan 2020
TL;DR: In this article, the effects of high strain on the optoelectronic properties of 2D crystals were investigated and the possibility to induce a clear-cut crossover from direct to indirect bandgap in strained monolayers was demonstrated.
140
Variation of the fundamental band gap nature in curved two-dimensional WS2
Elena Blundo,Marco Felici,Tanju Yildirim,Giorgio Pettinari,Davide Tedeschi,A. Miriametro,Boqing Liu,W. Ma,Yuerui Lu,Antonio Polimeni +9 more
TL;DR: In this article, a strain-induced direct-to-indirect band gap transition in mechanically deformed WS2 monolayers (MLs) is reported, where the necessary amount of strain is attained by proton irradiation of bulk WS2 and the ensuing formation of one-ML-thick, H2-filled domes.
57
Pressure‐assisted cooling to grow ultra‐stable Cs 3 Cu 2 l 5 and CsCu 2 l 3 single crystals for solid‐state lighting and visible light communication
Baiqian Wang,Chen Chen,Xin Yang,Wensi Cai,Shuangyi Zhao,Ru Li,W. Ma,Jiangzhao Chen,Zhi-qian Zang +8 more
TL;DR: In this paper , a pressure-assisted cooling method was developed to grow lead-free Cs3Cu2I5 and CsCu 2I3 single crystals, which exhibit more excellent stability, larger size and uniform orientations in comparison with pressure-free cooling method.
38
Near-unity quantum yield in zero-dimensional lead-free manganese-based halides for flexible X-ray imaging with high spatial resolution
W. Ma,Dehai Liang,Qingkai Qian,Qionghua Mo,Shuangyi Zhao,Wensi Cai,Jiangzhao Chen,Zhi-qian Zang +7 more
TL;DR: In this article , a novel lead-free (TBA)2MnBr4 single crystal synthesized via a facile solvent evaporation method was reported, which exhibits a bright green emission centered at 512nm with a high photoluminescence quantum yield (PLQY) of 93.76% at room temperature, originating from the 4T1-6A1 transition of Mn2+.
33
Stable yellow light emission from lead-free copper halides single crystals for visible light communication
TL;DR: In this article , a pressure-assisted cooling method is proposed to grow lead-free CsCu2I3 single crystals, which possess uniform surface morphology and enhanced photoluminescence quantum yield (PLQY) stability, with only 10% PLQY losses after being stored in air after 5000h.
18