Self-Trapped Exciton Emission in Highly Polar 0D Hybrid Ammonium/Hydronium-Based Perovskites Triggered by Antimony Doping.

Autor: Zhou B; School of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, China., Fang F; School of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, China., Liu Z; International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China., Zhong H; International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China., Zhou K; Hoffmann Institute of Advanced Materials, Postdoctoral Innovation Practice Base, Shenzhen Polytechnic, Nanshan District, Shenzhen 518055, China., Hu H; Hoffmann Institute of Advanced Materials, Postdoctoral Innovation Practice Base, Shenzhen Polytechnic, Nanshan District, Shenzhen 518055, China., Min J; Department of Mechanical Engineering, University of Hong Kong, Hong Kong, Hong Kong., Zheng F; Department of Mechanical Engineering, University of Hong Kong, Hong Kong, Hong Kong., Fang S; Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing, Yantai 264003, China., Nie J; International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China., Huang JK; Department of Systems Engineering, City University of Hong Kong, Kowloon, Hong Kong., Li LJ; Department of Mechanical Engineering, University of Hong Kong, Hong Kong, Hong Kong., Li H; School of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, China., Wan Y; Department of Mechanical Engineering, University of Hong Kong, Hong Kong, Hong Kong., Shi Y; School of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, China.
Jazyk: angličtina
Zdroj: Journal of the American Chemical Society [J Am Chem Soc] 2024 Jun 05; Vol. 146 (22), pp. 15198-15208. Date of Electronic Publication: 2024 May 14.
DOI: 10.1021/jacs.4c02108
Abstrakt: Various monovalent cations are employed to construct metal halide perovskites with various structures and functionalities. However, perovskites based on highly polar A-site cations have seldom been reported. Here, a novel hybrid 0D (NH 4 ) x (OH 3 ) 3- x InCl 6 perovskite with highly polar hydronium OH 3 + cations is introduced in this study. Upon doping with Sb 3+ , hybrid 0D (NH 4 ) x (OH 3 ) 3- x InCl 6 single crystals exhibited highly efficient broadband yellowish-green (550 nm) and red (630 nm) dual emissions with a PLQY of 86%. The dual emission arises due to Sb 3+ occupying two sites within the crystal lattice that possess different polarization environments, leading to distinct Stokes shift energies. The study revealed that lattice polarity plays a significant role in the self-trapped exciton emission of Sb 3+ -doped perovskites, contributing up to 25% of the Stokes shift energy for hybrid 0D (NH 4 ) x (OH 3 ) 3- x InCl 6 :Sb 3+ as a secondary source, in addition to the Jahn-Teller deformation. These findings highlight the potential of Sb 3+ -doped perovskites for achieving tunable broadband emission and underscore the importance of lattice polarity in determining the emission properties of perovskite materials.
Databáze: MEDLINE