Supramolecular Copolymerization Strategy for Realizing the Broadband White Light Luminescence Based on N-Deficient Porous Graphitic Carbon Nitride (g-C3N4)

被引：66

作者：

Tang, Wenhua ^{[1
]}

Tian, Ying ^{[1
]}

Chen, BoWen ^{[1
]}

Xu, Yayan ^{[1
]}

Li, Bingpeng ^{[1
]}

Jing, Xufeng ^{[2
]}

Zhang, Junjie ^{[1
]}

Xu, Shiqing ^{[1
]}

机构：

[1] China Jiliang Univ, Inst Photoelect Mat & Devices, Hangzhou 310018, Peoples R China

[2] China Jiliang Univ, Inst Optoelect Technol, Hangzhou 310018, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2020年 / 12卷 / 05期

基金：

中国国家自然科学基金;

关键词：

N-deficient porous g-C3N4; supramolecular copolymerization; narrow band gap; white light; broadband luminescence;

D O I：

10.1021/acsami.9b19338

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The N-deficient porous g-C3N4 with broadband white light emission was constructed by supramolecular copolymerization design, which combined organic copolymers cyanuric acid and 2,4,6-triaminopyrimidine with melamine upon the mixture gas environment of (95%)N-2/(5%)H-2. Herein, we achieved great breakthrough in narrowing the band gap of g-C3N4 from 2.64 to 1.39 eV. Furthermore, in contrast to pristine g-C3N4, we demonstrated that the emission wavelengths of N-deficient porous g-C3N4 can be tuned from narrow blue to broadband white range, where the optimal white light coordinate position is (0.297, 0.345). The prepared N-deficient porous g-C3N4 overcomes the limitation of the narrow adjusting range of optical properties while using conventional g-C3N4 and makes it more promising for applications in solid-state displays.

引用

页码：6396 / 6406

页数：11

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