Polymer solar cells with enhanced open-circuit voltage and efficiency
- Hsiang‐Yu Chen, Jianhui Hou, Gang Li
- Materials Science, Engineering
- 1 November 2009
Following the development of the bulk heterojunction1 structure, recent years have seen a dramatic improvement in the efficiency of polymer solar cells. Maximizing the open-circuit voltage in a…
MoS2 nanoparticles grown on graphene: an advanced catalyst for the hydrogen evolution reaction.
- Yanguang Li, Hailiang Wang, Liming Xie, Yongye Liang, Guosong Hong, H. Dai
- ChemistryJournal of the American Chemical Society
- 15 April 2011
A selective solvothermal synthesis of MoS(2) nanoparticles on reduced graphene oxide (RGO) sheets suspended in solution developed, which exhibited superior electrocatalytic activity in the hydrogen evolution reaction (HER) relative to other MoS (2) catalysts.
For the Bright Future—Bulk Heterojunction Polymer Solar Cells with Power Conversion Efficiency of 7.4%
- Yongye Liang, Zheng Xu, Luping Yu
- Materials ScienceAdvances in Materials
- 25 May 2010
The past success in organic light-emitting diodes provides scientists with confidence that organic photovoltaic devices will be a vital alternate to the inorganic counterpart, and the easiness of the fabrication holds the promise of very low-cost manufacturing process.
Ultrasmall reduced graphene oxide with high near-infrared absorbance for photothermal therapy.
- J. Robinson, Scott M. Tabakman, H. Dai
- Biology, EngineeringJournal of the American Chemical Society
- 8 April 2011
Nano-rGO is established as a novel photothermal agent due to its small size, high photothermal efficiency, and low cost as compared to other NIR photothermal agents including gold nanomaterials and carbon nanotubes.
Co₃O₄ nanocrystals on graphene as a synergistic catalyst for oxygen reduction reaction.
- Yongye Liang, Yanguang Li, H. Dai
- ChemistryNature Materials
- 11 August 2011
The Co₃O₄/N-doped graphene hybrid exhibits similar catalytic activity but superior stability to Pt in alkaline solutions, making it a high-performance non-precious metal-based bi-catalyst for both ORR and OER.
Graphene-wrapped sulfur particles as a rechargeable lithium-sulfur battery cathode material with high capacity and cycling stability.
- Hailiang Wang, Yuan Yang, H. Dai
- Materials ScienceNano letters (Print)
- 28 June 2011
The synthesis of a graphene-sulfur composite material by wrapping poly(ethylene glycol) coated submicrometer sulfur particles with mildly oxidized graphene oxide sheets decorated by carbon black nanoparticles shows high and stable specific capacities, representing a promising cathode material for rechargeable lithium batteries with high energy density.
Highly efficient solar cell polymers developed via fine-tuning of structural and electronic properties.
- Yongye Liang, D. Feng, Luping Yu
- Materials Science, ChemistryJournal of the American Chemical Society
- 19 May 2009
It was found that films with finely distributed polymer/fulleride interpenetrating network exhibited improved solar cell conversion efficiency, and the results proved that polymer solar cells have a bright future.
Mn3O4-graphene hybrid as a high-capacity anode material for lithium ion batteries.
- Hailiang Wang, Lifeng Cui, H. Dai
- Materials ScienceJournal of the American Chemical Society
- 20 September 2010
The two-step solution-phase reactions to form hybrid materials of Mn(3)O(4) nanoparticles on reduced graphene oxide (RGO) sheets for lithium ion battery applications should offer a new technique for the design and synthesis of battery electrodes based on highly insulating materials.
Covalent hybrid of spinel manganese-cobalt oxide and graphene as advanced oxygen reduction electrocatalysts.
- Yongye Liang, Hailiang Wang, H. Dai
- Materials ScienceJournal of the American Chemical Society
- 25 January 2012
Electrochemical and X-ray near-edge structure (XANES) investigations revealed that the nucleation and growth method for forming inorganic-nanocarbon hybrids results in covalent coupling between spinel oxide nanoparticles and N-doped reduced graphene oxide (N-rmGO) sheets.
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