Effects on the emission discrepancy between two-dimensional Sn-based and Pb-based perovskites
2차원 Sn계와 Pb계 페로브스카이트의 발광 불일치에 미치는 영향
Efectos sobre la discrepancia de emisión entre perovskitas bidimensionales basadas en Sn y Pb
Effets sur l'écart d'émission entre les pérovskites bidimensionnelles à base de Sn et à base de Pb
Влияние на рассогласование эмиссии двумерных перовскитов на основе Sn и Pb
Zhang Tianju 张天举 ¹ ², Zhou Chaocheng 周超成 ³ ⁴, Lin Jia 林佳 ³, Wang Jun 王俊 ¹ ² ⁵
¹ Laboratory of Micro-Nano Optoelectronic Materials and Devices, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
中国 上海 中国科学院上海光学精密机械研究所 微纳光电子功能材料实验室
² Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
中国 北京 中国科学院大学材料科学与光电技术学院
³ Department of Physics, Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, China
中国 上海 上海市电力材料防护与新材料重点实验室 上海电力大学物理系
⁴ State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
中国 上海 上海交通大学物理与天文学院 区域光纤通信网与新型光通信系统国家重点实验室
⁵ CAS Center for Excellence in Ultra-intense Laser Science, Shanghai 201800, China
中国 上海 中国科学院 超强激光科学卓越创新中心
Chinese Optics Letters, 11 November 2021

Two-dimensional (2D) Sn-based perovskites are a kind of non-toxic environment-friendly emission material with low photoluminescence quantum yields (PLQY) and enhanced emission linewidths compared to that of 2D Pb-based perovskites. However, there is no work systematically elucidating the reasons for the differences in the emission properties.

We fabricate (BA)₂SnI₄ and (BA)₂PbI₄ having different defect densities and different exciton-phonon scattering intensities. We also reveal that 2D Sn-based perovskites have stronger exciton-phonon scattering intensity and higher defects density, making significantly broadening the emission linewidth and accelerating the exciton relaxation process, which significantly reduces the PLQY of 2D Sn-based perovskites.
Chinese Optics Letters_1
Chinese Optics Letters_2
Chinese Optics Letters_3
Reviews and Discussions
Parametric study on the flutter sensitivity of a wide-chord hollow fan blade
Influence of aspect ratio and arrangement direction on the shear behavior of ellipsoids
Development of a double-layer shaking table for large-displacement high-frequency excitation
Effect of SiC Particle Size on Properties of SiC Porous Ceramics
Physical Layer Authentication in UAV-enabled Relay Networks Based on Manifold Learning
Risk assessment of fault water inrush during deep mining
Simvastatin Improves Outcomes of Endotoxin-induced Coagulopathy by Regulating Intestinal Microenvironment
Sound Insulation Performance of Pyramidal Truss Core Cylindrical Sandwich Structure
Coupling analysis of passenger and train flows for a large-scale urban rail transit system
Effects of minor B additions on tensile strength, fracture toughness and oxidation resistance of Nb–Si based alloys
Essential role of MALAT1 in reducing traumatic brain injury
Seasonal Cumulative Effect of Ural Blocking Episodes on the Frequent Cold events in China during the Early Winter of 2020/21

Previous Article                                Next Article
Copyright © Hot Paper