Physics Commons^™

Nitrogen 1s Electron Binding Energy Assignment In Carbon Nitride Thin Films With Different Structures, Niklas Hellgren, Wei Tao Zheng, Ke Zhao Xing, Michael Lögdlund, Åsa A. Johansson, U Gelivs, William R. Salaneck, Jan Eric Sundgren

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Carbon nitride thin films deposited by dc unbalanced magnetron sputtering have been analyzed by high-resolution X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. The XPS data show that N 1s binding states depend on substrate temperature (T_s). By comparison with the Raman spectra, N 1s binding states are assigned in which nitrogen atoms are mainly bound to sp² and sp³ carbon atoms at T_s = 100°C, whereas at T_s = 500°C nitrogen atoms are mainly bonded to sp², sp³ and sp¹ carbon atoms.