Fig. 1: Structural and phonon properties of CuSbSe2.
From: Structural and electronic features enabling delocalized charge-carriers in CuSbSe2
a Crystal structure of CuSbSe2, viewed along the b axis, and with the dominant Ag Raman mode shown in red arrows. The bonding environments of Cu (blue spheres) and Sb (pink spheres) are illustrated below the crystal structure. Se represented by green spheres. b X-ray diffraction (XRD) pattern of solution-processed thin films compared with the reference pattern of CuSbSe2 (ICSD database, ID 418754; detailed fitting in Supplementary Fig. 1a, b). The Miller indices of the dominant peaks are indicated. c Raman spectrum of spin-coated CuSbSe2 thin film with phonon modes of the most intense peaks labeled. Spectrum is the average of 10 scans. d Phonon dispersion curve of CuSbSe2. The band containing the dominant Ag mode is highlighted in red.
