Dislocations that Decrease Size Mismatch within the Lattice Leading to Ultrawide Band Gap, Large Second‐Order Susceptibility, and High Nonlinear Optical Performance of AgGaS2

• Published in: Angewandte Chemie International Edition Vol. 58; no. 29; pp. 9979 - 9983
• Main Authors: Zhou, Hui‐Min, Xiong, Lin, Chen, Ling, Wu, Li‐Ming
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 15.07.2019
• Edition: International ed. in English
• Subjects: alkali metals; Conduction; Conduction bands; Crystal structure; Dislocation; Dislocations; Energy gap; Figure of merit; high-temperature methods; inorganic functional materials; Inorganic materials; Laser damage; laser-induced damage threshold; Nonlinear optics; Physical properties; second harmonic generation; Silver; Silver gallium sulfide; Substitutes; Sulfur; Superposition (mathematics); Tensors; Valence band; Yield point

The essence of rational design syntheses of functional inorganic materials lies in understanding and control of crystal structures that determine the physical properties. AgGaS2 has the highest figure of merit for IR nonlinear optical interactions to date, but suffers low laser‐induced damage thresh...