Zn doped CsPb(Br/Cl)3 nonlinear optical limiting response BY FS laser Z-scanning
Materials Chemistry and Physics, vol.354, 2026 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 354
- Publication Date: 2026
- Doi Number: 10.1016/j.matchemphys.2026.132183
- Journal Name: Materials Chemistry and Physics
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Chimica, Compendex, INSPEC
- Keywords: Nonlinearity, Optical limiting, Perovskite quantum dot, Z-scanning, Zn doping
- Dokuz Eylül University Affiliated: Yes
Abstract
In this study, nonlinear optical (NLO) properties of CsPb(Cl/Br)3 perovskite quantum dots (PQDs) and Zn doped CsPb(Cl/Br)3 PQDs was systematically investigated, discovering its potential for advanced NLO devices. Initially samples were synthesized and characterised using UV-Vis, photoluminescence (PL), and TEM method. Next, open and closed aperture Z-scan experiments and optical limiting evaluations were carried out under varying excitation conditions. We measured that nonlinear absorption (β), nonlinear refractive (n2) indices and third-order nonlinear susceptibility (χ3) for CsPb(Cl/Br)3 PQDs to be on the orders of 10−11 cm/W, 10−16 cm2/W and 10−14 esu, respectively. Interestingly, it has been observed that the NLO properties of Zn -doped samples beings prominent considerably compared to undoped samples, with the rate of increasing as the Zn content. The results show that CsPb(Cl/Br)3 PQDs are remarkable material for applications on the next-generation NLO devices.