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Browsing MSSI - Materials & Surface Science Institute by Author "Geaney, Hugh"

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Browsing MSSI - Materials & Surface Science Institute by Author "Geaney, Hugh"

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  • Singh, Ajay; Geaney, Hugh; Laffir, Fathima R.; Ryan, Kevin M. (American Chemical Society, 2012)
    The quaternary copper chalcogenide, Cu2ZnSnS4, is an important emerging material for the development of low cost and sustainable solar cells. Here we report a facile solution synthesis of stoichiometric Cu2ZnSnS4 in size ...
  • Geaney, Hugh; Dickinson, Calum; Barrett, Christopher A.; Ryan, Kevin M. (American Chemical Society, 2011)
    Herein, we describe the growth of highly dense germanium nanowire mats directly on copper foil by a self induced, solid seeded protocol. The existence of Cu3Ge tips on each of the nanowires indicates that growth proceeds ...
  • Barrett, Christopher A.; Geaney, Hugh; Gunning, Robert D.; Laffir, Fathima R.; Ryan, Kevin M. (Royal Society of Chemistry, 2011)
    High yields of single-crystalline Ge nanowires (NWs) were synthesized through the thermal decomposition of diphenylgermane (DPG) in the vapor phase of a high boiling point organic solvent. The NWs were single crystal and ...
  • Geaney, Hugh; Dickinson, Calum; Weng, Weihao; Kiely, Christopher J.; Barrett, Christopher A.; Gunning, Robert D.; Ryan, Kevin M. (American Chemical Society, 2011)
    Here we show the impact of preferred growth directions and defects in the formation of complex Ge nanowire (NW) structures grown by a simple organic medium based synthesis. Various types of NWs 15 are examined including: ...
  • O'Sullivan, Catriona; Gunning, Robert D.; Sanyal, Ambarish; Barrett, Christopher A.; Geaney, Hugh; Laffir, Fathima R.; Ahmed, Shafaat; Ryan, Kevin M. (American Chemical Society, 2009)
    Spontaneous elongation from nanorod to nanowire in the presence of an amine is reported for nanocrystals of cadmium sulfide and silver sulfide (cation exchanged from CdS). Elongation occurs instantaneously where the final ...

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