题目：

Efficient Blue/White Phosphorescent Organic Light-Emitting Diodes Based on a Silicon-based Host Material via Direct Carbon/Nitrogen Bond

作者：

Yue-Min Xie, Lin-Song Cui, Yuan Liu, Feng-Shuo Zu, Qian Li, Zuo-Quan Jiang,* Liang-Sheng Liao*

单位：

Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University

摘要：

The electronic structure of graphdiyne exposed to air is investigated utilizing X-ray absorption spectroscopy and scanning transmission X-ray microscopy. It is found that carbon−carbon triple bonds at defect sites in graphdiyne have been changed to double bonds after 3 months in air. The experimental results reveal the existence of oxygen and nitrogen functional groups and indicate that the oxidation takes place throughout the aged graphdiyne while the nitrogen contamination is mainly on its surface. Buckling of the aged graphdiyne is observed, resulting from bond length change due to the opening of triple bonds. It is also shown that annealing at a high temperature such as 800 °C may remove most of the functional groups in the aged graphdiyne.

影响因子：

6.629

分区情况：

1区

链接：

http://pubs.rsc.org/en/journals/journalissues/tc/#!recentarticles&am