@article {10833,
	title = {Room Temperature Synthesis of Cu2O Nanospheres: Optical Properties and Thermal Behavior},
	journal = {Microscopy and Microanalysis},
	volume = {21},
	year = {2015},
	note = {n/a},
	month = {2015},
	pages = {11},
	abstract = {<p>The present work reports a simple and easy wet chemistry synthesis of cuprous oxide (Cu2O) nanospheres at room temperature without surfactants and using different precursors. Structural characterization was carried out by X-ray diffraction, transmission electron microscopy, and scanning electron microscopy coupled with focused ion beam and energy-dispersive X-ray spectroscopy. The optical band gaps were determined from diffuse reflectance spectroscopy. The photoluminescence behavior of the as-synthesized nanospheres showed significant differences depending on the precursors used. The Cu2O nanospheres were constituted by aggregates of nanocrystals, in which an on/off emission behavior of each individual nanocrystal was identified during transmission electron microscopy observations. The thermal behavior of the Cu2O nanospheres was investigated with in situ X-ray diffraction and differential scanning calorimetry experiments. Remarkable structural differences were observed for the nanospheres annealed in air, which turned into hollow spherical structures surrounded by outsized nanocrystals. FAU - Nunes, Daniela</p>
},
	author = {Nunes, D. and Santos, L and Duarte, P and Pimentel, A. and Pinto, JV and Barquinha, P. and Carvalho, P. A. and Fortunato, E. and Martins, R.}
}
