Revealing the charge-transfer interactions in self-assembled organic cocrystals: Two-dimensional photonic applications
Revealing the charge-transfer interactions in self-assembled organic cocrystals: Two-dimensional photonic applications
复制标题
揭示自组装有机共晶中的电荷转移相互作用：二维光子应用
DOI：
10.1002/anie.201501414
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Wenping Hu
中科院分区：
文献类型：
--
作者：
Weigang Zhu;Renhui Zheng;Xiaolong Fu;Hongbing Fu;Qiang Shi;Yonggang Zhen;Huanli Dong;Wenping Hu
通过超分子组装制备了一种新的电荷转移（CT）配合物晶体，它具有独特的二维（2D）形态。通过电子自旋共振测量、光谱研究和理论计算证实了这种新的Bpe-TCNB共晶（BTC）的基态和激发态的CT性质，从而提供了对有机供体-受体系统中CT相互作用的全面理解。最低的CT 1激子负责有效的光致发光（ΦPL= 19%），其可以在单个2D BTC中主动传播而没有各向异性，因此暗示晶体的光波导性质与分子堆叠结构无关。这种独特的2D CT共晶显示出在下一代光电通信中用于功能光子器件的潜力。
A new crystal of a charge‐transfer (CT) complex was prepared through supramolecular assembly and it has unique two‐dimensional (2D) morphology. The CT nature of the ground and excited states of this new Bpe‐TCNB cocrystal (BTC) were confirmed by electron spin resonance measurements, spectroscopic studies, and theoretical calculations, thus providing a comprehensive understanding of the CT interactions in organic donor–acceptor systems. And the lowest CT1excitons are responsible for the efficient photoluminescence (ΦPL=19 %), which can actively propagate in individual 2D BTCs without anisotropy, thus implying that the optical waveguide property of the crystal is not related to the molecular stacking structure. This unique 2D CT cocrystal exhibits potential for use in functional photonic devices in the next‐generation optoelectronic communications.