Fig. 2: Characterization of heterojunction band offsets. | Communications Physics

Fig. 2: Characterization of heterojunction band offsets.

From: Carrier transport mechanisms of titanium nitride and titanium oxynitride electron-selective contact in silicon heterojunction solar cells

Fig. 2

a The ultraviolet photoelectron spectroscopy (UPS) spectra of TiN and TiOxNy. b–e X-ray photoelectron spectroscopy (XPS) spectra of Ti 2p. f–h XPS spectra of Si 2p. Note that the hollow circle data points in (b) to (h) represent the raw data, while the red curves represent envelope curves. The blue, green and yellow curves represent the peaks of different components. Spectra marked with “(i)” are determined from the structure of 2 nmTiOxNy/200 μmSi, which characterize the chemical states of the interface.

Back to article page