High quantum yield yellow emission carbon dots for the construction of blue light blocking films  

作　　者：Liwen Wang Boyang Wang Siyu Lu Shubo Lv Xiaoli Qu 

机构地区：[1]Neonatal Disease Screening Unit,The Third Affiliated Hospital of Zhengzhou University,Zhengzhou 450001,China [2]College of Chemistry,Pingyuan Laboratory,Zhengzhou University,Zhengzhou 450001,China [3]Erythrocyte Biology Laboratory,School of Life Sciences,Zhengzhou University,Zhengzhou 450001,China

出　　处：《Chinese Chemical Letters》2025年第2期216-221,共6页中国化学快报(英文版)

基　　金：supported by Medical Science and Technology Research Project of Henan Province(Joint Construction Project)(No.LHGJ20200433);National Natural Science Foundation of China(No.52122308)。

摘　　要：White light illumination is essential in daily life,however,the substantial amount of blue light it contains can damage human eyes.Therefore,it is important to block this high-energy blue light to protect visual health.In this study,yellow-emitting carbon dots(CDs)with a quantum yield exceeding 94%were synthesized using citric acid and urea.These CDs effectively absorb blue light.By incorporating them into polystyrene,multiple films termed CDs-based blue light blocking films(CBFs)were developed,each offering different levels of blue light absorption.These CBFs exhibited excellent transparency and efficient blue light filtering capabilities.This study highlights the potential of high quantum yield CDs,which specifically absorb blue light,as foundational materials for developing light-blocking solutions against highenergy short-wavelength light.

关 键 词：Carbon dots High quantum yield Controllable preparation Blue light blocking Composite film 

分 类 号：TB383.1[一般工业技术—材料科学与工程] TQ127.11[化学工程—无机化工]