期刊
ACS APPLIED MATERIALS & INTERFACES
卷 12, 期 1, 页码 1495-1503出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b17391
关键词
photochromism; bipyridine; hydrogen bonding; eye protection; visible sensor
资金
- National Science Foundation for Distinguished Young Scholars [21425417]
- National Natural Science Foundation of China [21835005, U1862109]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
Light-emitting diode based electronic screens emit near-ultraviolet radiation, which causes harm to the human eye after prolonged exposure. Thus, it is of paramount importance to prepare a sensitive and adjustable visible near-ultraviolet sensor for retinal warning. Herein, a series of bipyridine derivatives were synthesized to investigate effects of substituent groups and anions on photochromic properties via both experimental and theoretical studies. The introduction of dual hydrogen bonding urea onto substituted groups significantly accelerated the photochromic rate due to strong intermolecular interactions, which reduces molecular spacing and promotes the electron-transfer effect. Moreover, the photochromic rate was tuned by changing the size of the anion. Larger anions widen the molecular spacing and weaken the electron transfer and eventually lead to a decrease in the photochromic rate. Finally, bipyridine derivatives were printed on a polyethylene terephthalate film or paper as a sensitive, adjustable, and visible sensor to monitor near-ultraviolet radiation emitted by an light-emitting diode screen.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据