Elastic Self-Doping Organic Single Crystals Exhibiting Flexible Optical Waveguide and Amplified Spontaneous Emission
Elastic Self-Doping Organic Single Crystals Exhibiting Flexible Optical Waveguide and Amplified Spontaneous Emission
复制标题
具有柔性光波导和放大自发发射的弹性自掺杂有机单晶
DOI：
10.1002/adma.201800814
复制
发表时间：
2018-05-24
影响因子：
29.4
通讯作者：
Zhang, Hongyu
中科院分区：
文献类型：
--
作者：
Huang, Rui;Wang, Chenguang;Zhang, Hongyu
有机晶体通常是脆性的，并且在施加的应力下倾向于破裂。掺杂的有机晶体由于晶格缺陷甚至更脆。在此，报道了在施加的应力下显示弹性弯曲能力的第一掺杂有机晶体1d@2d。此外，弹性掺杂晶体1d@2d在柔性光电子学中的潜在应用也得到了令人印象深刻的展示。高质量和大尺寸的弹性晶体1d@2d通过简单而独特的“自掺杂”工艺结晶，该工艺是含有微量2d（3，6-双（辛基氨基）对苯二甲酸酯）作为氧化副产物的粗产物1d（2，5-二氢-3，6-双（辛基氨基）对苯二甲酸酯）的常规溶液蒸发。主体1d容易结晶形成弹性晶体，但不发荧光，而客体2d的结晶性差，发光性高。该掺杂方法综合了1d和2d的优点，使1d@2d掺杂晶体具有良好的弹性和强烈的橙子荧光。利用这些优点，通过测量直态和弯曲态的光波导和放大自发辐射，评价了掺杂晶体1d@2d的应用潜力。
Organic crystals are generally brittle and tend to crack under applied stress. Doped organic crystals are even more brittle because of lattice defects. Herein, the first doped organic crystals 1d@2d, which display elastic bending ability under applied stress, are reported. Moreover, the potential applications of elastic-doped crystals 1d@2d in flexible optoelectronics are impressively demonstrated. The elastic crystals 1d@2d with high quality and large size are crystalized by a simple and unique "self-doping" process, which is a regular solution evaporation of crude product 1d (2,5-dihydro-3,6-bis(octylamino)terephthalate) containing a minute amount of 2d (3,6-bis(octylamino)terephthalate) as the oxidized byproduct. The host 1d is easily crystallized to form elastic crystals but is nonfluorescent, while the guest 2d has poor crystallinity and is highly emissive. The doping approach integrates the advantages of both 1d and 2d, and thus endows doped crystals 1d@2d with good elasticity as well as intense orange fluorescence. Taking these advantages, the application potentials of these doped crystals 1d@2d are evaluated by measuring optical waveguide and amplified spontaneous emission in both the straight and bent states.