Facile preparation of copper nitride powders and nanostructured films

Abstract

Powders and thin films of copper nitride, Cu3N, can be synthesised simply from copper(ii) trifluoroacetate, the latter by facile solution processing, resulting in stoichiometric nanostructured semiconducting materials with a band gap of 1.48 eV.

Syntheses, Structures, and Properties of Two Coordination Complexes of a Flexible Ligand with Channel Structure

“…In addition, from the diffuse reflectance UV/Vis/NIR spectroscopic data the bandgaps were calculated for these complexes. The bandgap ( E g ) is defined as the intersection point between the energy axis and the line extrapolated from the linear portion of the adsorption edge in a plot of Kubelka‐Munk function F against energy E , . As shown in Figure S5, the E g values evaluated from the steep absorption edge are 2.57 and 2.59 eV, respectively, which demonstrates that these complexes are potential semiconductor materials …”

Significant Improvement of Copper Dry Etching Property of a High-Pressure Hydrogen-Based Plasma by Nitrogen Gas Addition

“…It is thus expected that copper nitride will react easily with atomic hydrogen. If a thin Cu 3 N layer covered the Cu surface, Cu hydride was proposed to be formed via the following reactionThe formation enthalpies for Cu 3 N, H, and CuH are known to be 74.5, 38 472, and 27.5 kJ/mol, 39 respectively. Although the entropies for Cu 3 N and CuH are unfortunately unknown, given that the entropies for Cu 3 N and CuH are equal to that for CuO, the reaction in eq 4 would be possible below 1000 °C in the presence of atomic hydrogen.…”

Elucidating the effect of precursor decomposition time on the structural and optical properties of copper(i) nitride nanocubes

“…Few reports have demonstrated that Cu 3 N NPs can be synthesized by employing ammonolysis or use of N sources such as azide, hexamethylenetetramine and urea but the challenge with these methods is that the resultant NPs are ill-shaped. [2][3][4][5][6][7][8] Special attention is recently being given to the synthesis of Cu 3 N NPs using direct thermal decomposition of Cu(NO 3 ) 2 $3H 2 O in octadecylamine (ODA) to obtain well dened nanocubes. [9][10][11][12][13] Thermal decomposition of other metal nitrates for example, Mn(NO 3 ) 2 , Ni(NO 3 ) 2 $6H 2 O, Zn(NO 3 ) 2 -$6H 2 O, Ce(NO 3 ) 3 $6H 2 O, Co(NO 3 ) 2 $6H 2 O in ODA resulted in the formation of corresponding metal oxides and not metal nitrides.…”