2023/01/03 by Abdulsalam Aji Suleiman, Suleiman, Abdulsalam Aji, Reza Rahighi +5
Engineering · Materials Science · Physics and Astronomy · #Chalcogenide Semiconductor Thin Films #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Quantum Dots Synthesis And Properties #Spectroscopy and Quantum Chemical Studies
paper · pdf · doi:10.48550/arxiv.2301.00971
openalex publication_date 2023/01/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Copper sulfide (CuS) has garnered significant attention in various fields of application due to its unique electronic, optical, and catalytic features. In this study, we present the chemical vapor deposition (CVD)-based synthesis of ultrathin CuS crystals as thin as 14 nm with lateral sizes up to 60 um. The structure, morphology, and composition of the as-synthesized CuS crystals were thoroughly characterized. Among our results, we measured the first-order temperature coefficients of Raman shifts of CuS. Moreover, we showed that CuS crystals exhibited an unexpected second harmonic generation (SHG), which is attributed to the presence of defects in the CuS lattice. Our results suggest that single crystalline CuS possesses a considerable potential for nonlinear optical applications in conjunction with its current applications in electronics and catalysis.