@article {Nunes2015b,
	title = {{Room temperature synthesis of Cu$_{2}$O nanospheres: optical properties and thermal behavior.}},
	journal = {Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada},
	volume = {21},
	number = {1},
	year = {2015},
	note = {n/a},
	month = {feb},
	pages = {108{\textendash}19},
	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.</p>
},
	issn = {1435-8115},
	doi = {10.1017/S1431927614013348},
	url = {https://apps.webofknowledge.com/full{\_}record.do?product=UA{\&}search{\_}mode=GeneralSearch{\&}qid=32{\&}SID=N1WyAorjaMTj6Onswjv{\&}page=1{\&}doc=1 https://apps.webofknowledge.com/full{\_}record.do?product=UA{\&}search{\_}mode=GeneralSearch{\&}qid=44{\&}SID=N1Wy},
	author = {Nunes, Daniela and Santos,L{\'\i}dia and Paulo Duarte and Ana Pimentel and Joana V. Pinto and Barquinha, Pedro and Patr{\'\i}cia A. Carvalho and Elvira Fortunato and Rodrigo Martins}
}
