Broadband white-light emission from a novel two-dimensional metal halide assembled by Pb-Cl hendecahedrons

被引：11
|
作者：
Chen, Runan [1 ]
Gu, Hao [2 ]
Han, Ying [1 ]
Yin, Jun [3 ]
Xing, Guichuan [2 ]
Cui, Bin-Bin [1 ]
机构：
[1] Beijing Inst Technol BIT, Sch Chem & Chem Engn, Adv Res Inst Multidisciplinary Sci, Sch Mat Sci & Engn, Beijing 100081, Peoples R China
[2] Univ Macau, Inst Appl Phys & Mat Engn, Joint Key Lab, Minist Educ, Ave Univ, Taipa 999078, Macau, Peoples R China
[3] King Abdullah Univ Sci & Technol, Adv Membranes & Porous Mat Ctr, KAUST Catalysis Ctr, Div Phys Sci & Engn, Thuwal 239556900, Saudi Arabia
来源：
JOURNAL OF MATERIALS CHEMISTRY C | 2022年 / 10卷 / 25期
关键词：
COLOR RENDERING INDEX; ORIGINS; BR;
D O I：
10.1039/d2tc01472f
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The abundant selection of organic molecules and inorganic units has allowed for the fabrication of organic-inorganic hybrid metal halides (OIMHs) of various morphologies and crystal structures with controllable molecular dimensions and unique photoelectric properties. This work reports a unique two-dimensional (2D) OIMH, C6H10N2Pb2Cl6, which comprises distinctive lead chloride hendecahedrons, (Pb2Cl6)(2-), and p-phenylenediamium cations. The extremely large lattice distortion endows this 2D OIMH with strong electron-phonon coupling and an abundance of self-trapped excitons (STEs), which contribute to its broadband "cold" white-light emission with a large Stokes shift (similar to 200 nm) and a remarkable photoluminescence quantum efficiency (PLQE) of over 17% in 2D OIMHs.
引用
收藏
页码：9465 / 9470
页数：6
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