High-performance single-component white light-emitting diodes based on donor-acceptor integrated carbon nitride

被引：0

作者：

Ning Wu ^{[1
]}

Fangxu Dai ^{[1
,2
]}

Kunpeng Wang ^{[1
]}

Yunhu Wang ^{[1
]}

Xinyi Wang ^{[1
]}

Kai Zhang ^{[1
]}

Mingming Zhang ^{[1
,3
]}

Kang Liu ^{[1
]}

Jixiang Xu ^{[1
]}

Lei Wang ^{[1
]}

Jun Xing ^{[1
]}

机构：

[1] Key Laboratory of Eco-chemical Engineering,Ministry of Education,College of Chemistry and Molecular Engineering,Qingdao University of Science & Technology

[2] School of Pharmacy,Jining Medical University

[3] College of Sino-German Science and Technology,Qingdao University of Science &

来源：

Science China(Chemistry) | 2025年 / 68卷 / 03期

关键词：

D O I：

暂无

中图分类号：

TN312.8 []; TQ127.16 [];

学科分类号：

0803 ;

摘要：

White light-emitting diodes（WLEDs） as energy-saving light sources are widely used to alleviate the rising electric consumption.Most commercial WLEDs are blue/yellow-mixed emitting devices,which have some disadvantages,such as physiological damages of rich blue light,complex device structure and color aging.It is essential to develop single-component WLEDs with quasi-solar spectrum to overcome these problems.Here we demonstrate a high-performance single-component WLED based on donor-acceptor integrated carbon nitride（DACN） material.The donor-acceptor simultaneously increases the photoluminescence efficiency and the carrier mobility of graphitic carbon nitride（g-CN）,hence,the DACN-based WLED reaches a milestone in maximum luminance of 2,045 cdm-2 and maximum external quantum efficiency of 2.2%,which are one order of magnitude higher than pristine g-CN-based LED.Furthermore,the DACN-based WLED emits broadband white light with color coordinates of（0.34,0.44） and a color temperature of 5,163 K.Our works open a way to boost optoelectronic properties of g-CN materials and show their promising application in single-component WLEDs.

引用

页码：1136 / 1143

页数：8

共 16 条

[1] Enhancing the Photoluminescence and Electroluminescence of Graphitic Carbon Nitride via Atomic and Molecular Co-modification..[J].Kai Zhang;Ruili Song;Ning Wu;Yunhu Wang;Mingming Zhang;Xilei Chen;Lei Wang;Jun Xing.The journal of physical chemistry letters.2024,
[2] Synergy of defect engineering and curvature effect for porous graphite carbon nitride nanotubes promoted photocatalytic hydrogen evolution.[J].Liping Guo;Jinyu Gao;Mingxia Li;Ying Xie;Hui Chen;Shijie Wang;Zhenzi Li;Xuepeng Wang;Wei Zhou.EcoEnergy.2023, 2
[3] Sterically‐Locked Donor–Acceptor Conjugated Polymers Showing Efficient Thermally Activated Delayed Fluorescence.[J].Rao Jiancheng;Yang Liuqing;Li Xue;Zhao Lei;Wang Shumeng;Tian Hongkun;Ding Junqiao;Wang Lixiang.Angewandte Chemie International Edition.2021, 17
[4] Come to light: Detailed analysis of thermally treated Phenyl modified Carbon Nitride Polymorphs for bright phosphors in lighting applications.[J].Stefania Porcu;Ignazio Roppolo;Mathieu Salaun;Giorgia Sarais;Simone Barbarossa;Maria Francesca Casula;Carlo Maria Carbonaro;Pier Carlo Ricci.Applied Surface Science.2020,
[5] Mechanisms of blue light-induced eye hazard and protective measures: a review.[J].Xinli Ouyang;Jing Yang;Zexin Hong;Yide Wu;Yongfang Xie;Guohui Wang.Biomedicine & Pharmacotherapy.2020,
[6] Full‐Color Chemically Modulated g‐C3N4 for White‐Light‐Emitting Device.[J].Qianyi Guo;Minchen Wei;Zekun Zheng;Xiongjian Huang;Xiaoqian Song;Shao‐Bin Qiu;Xiao‐bao Yang;Xiaofeng Liu;Jianrong Qiu;Guoping Dong.Advanced Optical Materials.2019, 21
[7] One-Pot Exfoliation of Graphitic C3 N4 Quantum Dots for Blue QLEDs by Methylamine Intercalation..[J].He Xingchen;Liu Yanliang;Butch Christopher J;Lee Bo Ram;Guo Feng;Wu Jiangxiao;Wang Ziyang;Lu Qian;Jeong Jung Hyun;Wang Yiqing;Park Sung Heum.Small (Weinheim an der Bergstrasse; Germany).2019, 44
[8] White-Light Emission from Layered Halide Perovskites
Smith, Matthew D.
Karunadasa, Hemamala I.
[J]. ACCOUNTS OF CHEMICAL RESEARCH, 2018, 51 (03) : 619 - 627
[9] Functional carbon nitride materials design strategies for electrochemical devices
Kessler, Fabian K.
Zheng, Yun
Schwarz, Dana
Merschjann, Christoph
Schnick, Wolfgang
Wang, Xinchen
Bojdys, Michael J.
[J]. NATURE REVIEWS MATERIALS, 2017, 2 (06):
[10] Carbon Self‐Doping Induced Activation of n–π* Electronic Transitions of g‐C3N4 Nanosheets for Efficient Photocatalytic H2 Evolution.[J].Feng‐Yun Su;Cheng‐Qun Xu;Dr. Yu‐Xiang Yu;Prof. Dr. Wei‐De Zhang.ChemCatChem.2016, 22

← 1 2 →