Weiwei Sun
University of Arkansas at Little Rock
7 Papers
2 Citations
Weiwei Sun is an academic researcher from University of Arkansas at Little Rock. The author has contributed to research in topics: Catalysis & Band gap. The author has an hindex of 4, co-authored 7 publications.
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Papers
Pure and stable metallic phase molybdenum disulfide nanosheets for hydrogen evolution reaction
Xiumei Geng,Weiwei Sun,Wei Wu,Benjamin Chen,Alaa A. Al-Hilo,Mourad Benamara,Hongli Zhu,Fumiya Watanabe,Jingbiao Cui,Tar Pin Chen +9 more
TL;DR: The obtained M-MoS2 exhibits excellent stability in water and superior activity for the hydrogen evolution reaction, with a current density of 10 mA cm−2 at a low potential of −175 mV and a Tafel slope of 41mV per decade.
Three-Dimensional Structures of MoS2 Nanosheets with Ultrahigh Hydrogen Evolution Reaction in Water Reduction
Xiumei Geng,Wei Wu,Ning Li,Weiwei Sun,Johnathan C. Armstrong,Alaa A. Al-Hilo,Matthew Brozak,Jingbiao Cui,Tar-Pin Chen +8 more
TL;DR: In this article, a robust and highly active system for hydrogen evolution reaction in alkaline solution is reported by developing MoS2 nanosheet arrays vertically aligned on graphene-mediated 3D Ni networks.
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Experimental and theoretical study on band gap tuning of Cu 2 ZnSn(S 1−x Se x ) 4 absorbers for thin-film solar cells
Weiwei Sun,Xiumei Geng,Johnathan C. Armstrong,Jingbiao Cui,Tar-Pin Chen +4 more
- 08 Jun 2014
TL;DR: In this article, a non-hydrazine solution followed by spincoating has been used to produce Cu 2 ZnSnS 4 (CZTS precursor) thin films were obtained after annealed with sulfur or selenium powders in tube furnace at 530°C.
3
Solar cell structures based on ZnO/CdS core-shell nanowire arrays embedded in Cu 2 ZnSnS 4 light absorber
Weiwei Sun,Matthew Brozak,Johnathan C. Armstrong,Jingbiao Cui +3 more
- 16 Jun 2013
TL;DR: In this paper, a CZTS-based thin-film and nanowire (NW) solar cells are studied by both experimental and simulation approaches, and it is shown that the NW structures enhance the light absorption of the thin-layer solar cells around the nanowires due to light trapping effect.
Mechanism of Ag Doping in ZnO Nanowires by Electrodeposition: Experimental and Theoretical Insights
TL;DR: In this article, a range of complementary techniques were used to explore the physical mechanisms of Ag doping in ZnO nanowires obtained by a low-temperature electrochemical process.