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Band Gap Dependence on Cation Disorder in ZnSnN 2 Solar Absorber

DOI: 10.1002/aenm.201501462 DOI Help

Authors: Tim D. Veal (University of Liverpool) , Nathaniel Feldberg (University at Buffalo) , Nicholas Quackenbush (Binghamton University) , Wojciech M. Linhart (University of Liverpool) , David O. Scanlon (University College London; Diamond Light Source) , Louis Piper (Binghamton University) , Steven M. Durbin (Western Michigan University)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Advanced Energy Materials , VOL 5 (24)

State: Published (Approved)
Published: December 2015

Open Access Open Access

Abstract: The band gap of earth-abundant ZnSnN2 can be tuned between 1 and 2 eV by varying the growth conditions and resulting cation disorder. The optical absorption edges and carrier densities fall between model curves for cation-ordered orthorhombic and disordered wurtzite ZnSnN2. Hard X-ray photo­emission spectra suggest different degrees of cation disorder from comparison with hybrid DFT-calculated densities of states.

Subject Areas: Materials, Energy

Facility: NSLS

Added On: 02/03/2016 13:40

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