Layered CuTaN2 was synthesized by an ion exchange reaction of CuI and NaTaN2 as previously reported. Based on the results of EDX analysis, the Cu:Ta ratio of the CuTaN2 sample was1:1 within the overall errors when examining powders of �10 % and no Na was detected. The crystal structure and thermal stability of CuTaN2 was accurately determined by Rietveld analysis of the powder X-ray Diffraction profile and by TGA analysis, respectively. CuTaN2 crystallizes in a rhombohedral structure with space group R-3mH as shown in . CuTaN2possesses a band gap of 1.53(x) eV, which is in reasonable agreement with density functional theory calculations of Cu containing nitrides. Similar materials may be even better suited for solar cell application.

Synthesis and optical properties of CuTaN<sub>2</sub>: Potential solar cell applications

245th National Meeting (2013)

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Synthesis and optical properties of CuTaN2: Potential solar cell applications

Synthesis and optical properties of CuTaN₂: Potential solar cell applications