White-Light Emission from Dual-Way Photon Energy Conversion in a Dye-Encapsulated Metal-Organic Framework

被引：169

作者：

Wang, Zheng ^{[1
]}

Zhu, Cheng-Yi ^{[1
]}

Mo, Jun-Ting ^{[1
]}

Fu, Peng-Yan ^{[1
]}

Zhao, Yan-Wu ^{[1
,2
]}

Yin, Shao-Yun ^{[1
]}

Jiang, Ji-Jun ^{[1
]}

Pan, Mei ^{[1
]}

Su, Cheng-Yong ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Chem, Lehn Inst Funct Mat, MOE Lab Bioinorgan & Synthet Chem, Guangzhou 510275, Guangdong, Peoples R China

[2] Hanxi Normal Univ, Sch Chem Mat Sci, Linfen 041004, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2019年 / 58卷 / 29期

关键词：

dyes; host-guest systems; metal-organic frameworks; photon conversion; white light emission; QUANTUM DOTS; ABSORPTION; PEROVSKITE; PERFORMANCE; EFFICIENT; DEVICES;

D O I：

10.1002/anie.201905186

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The design of white-light phosphors is attractive in solid-state lighting (SSL) and related fields. A new strategy in obtaining white light emission (WLE) from dual-way photon energy conversion in a series of dye@ MOF (LIFM-WZ-6) systems is presented. Besides the traditional UV-excited onephoton absorption (OPA) pathway, white-light modulation can also be gained from the combination of NIR-excited green and red emissions of MOF backbone and encapsulated dyes via two-photon absorption (TPA) pathway. As a result, downconversion OPA white light was obtained for RhB+@ LIFMWZ-6 (0.1 wt%), BR-2+@ LIFM-WZ-6 (2 wt%), and APFG+@ LIFM-WZ-6 (0.1 wt%) samples under 365 nm excitation. RhB+@ LIFM-WZ-6 (0.05 wt%), BR-2+@ LIFM-WZ-6 (1 wt%) and APFG+@ LIFM-WZ-6 (0.05 wt%) exhibit upconversion TPA white light under the excitation of 800, 790, and 730 nm, respectively. This new WLE generation strategy combines different photon energy conversion mechanisms together.

引用

页码：9752 / 9757

页数：6

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