Engineering Donor-Acceptor Heterostructure Metal-Organic Framework Crystals for Photonic Logic Computation
Engineering Donor-Acceptor Heterostructure Metal-Organic Framework Crystals for Photonic Logic Computation
复制标题
用于光子逻辑计算的供体-受体异质结构金属有机框架晶体的工程
DOI：
10.1002/anie.201906278
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发表时间：
2019-07-17
影响因子：
16.6
通讯作者：
Bu, Xian-He
中科院分区：
文献类型：
--
作者：
Liu, Xiao-Ting;Wang, Kang;Bu, Xian-He
光子材料利用光子作为信息载体，在光学和光电子器件中具有前所未有的应用潜力。在这项研究中，我们介绍了一种利用金属有机骨架(MOF)作为主体来合理构建施主-受主(D-A)异质结构晶体的新策略。我们以MOF NKU-111为主体，构建了丰富的异质结晶库。NKU-111是基于一种缺电子的三齿配体(受体)，可以与各种电子丰富的客体(供体)结合。由于客体相关的电荷转移(CT)发射，所得到的异晶显示出空间分离的多色发射。空间上有效的单向能量转移是通过选择施主客体分子来调节相邻域之间的能量梯度，这表明它在集成光电路器件中具有潜在的应用前景，例如光子二极管、片上信号处理、光学逻辑门。
Photonic materials use photons as information carriers and offer the potential for unprecedented applications in optical and optoelectronic devices. In this study, we introduce a new strategy for photonic materials using metal-organic frameworks (MOFs) as the host for the rational construction of donor-acceptor (D-A) heterostructure crystals. We have engineered a rich library of heterostructure crystals using the MOF NKU-111 as a host. NKU-111 is based upon an electron-deficient tridentate ligand (acceptor) that can bind to various electron-rich guests (donors). The resulting heterocrystals exhibit spatially segregated multi-color emission resulting from the guest-dependent charge-transfer (CT) emission. Spatially effective mono-directional energy transfer results from tuning the energy gradient between adjacent domains through the selection of donor guest molecules, which suggests potential applications in integrated optical circuit devices, for example, photonic diodes, on-chip signal processing, optical logic gates.