Shape-Controlled Micro/Nanostructures of 9,10-Diphenylanthracene (DPA) and Their Application in Light-Emitting Devices
Shape-Controlled Micro/Nanostructures of 9,10-Diphenylanthracene (DPA) and Their Application in Light-Emitting Devices
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DOI：
10.1021/jp112195k
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发表时间：
2011-03
影响因子：
3.7
通讯作者：
Bo Yang;Jinchong Xiao;J. Wong;Jun Guo;Yuechao Wu;Lijin. Ong;L. L. Lao-L.;F. Boey;Huanxiang Zhang-Huanxian
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文献类型：
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作者：
Bo Yang;Jinchong Xiao;J. Wong;Jun Guo;Yuechao Wu;Lijin. Ong;L. L. Lao-L.;F. Boey;Huanxiang Zhang-Huanxian
采用表面活性剂辅助自组装方法合成了八面体和球形的9，10-二苯基蒽（DPA）微/纳米结构，并分别与微米棒和纳米线相结合。这些微/纳米结构已经通过紫外维斯、荧光光谱、X射线衍射（XRD）、场发射扫描电子显微镜（FESEM）和透射电子显微镜（TEM）进行了表征。结果表明，随着DPA颗粒形状由八面体向微米棒再向纳米线的转变，其吸收光谱和发射光谱均发生轻微的蓝移。这一结果可以通过DPA微/纳米结构的不同生长方向来解释。为了研究器件的形状与性能之间的关系，制备了石英/ITO/有机颗粒/n-SiC/Ti（10 nm）/Au（120 nm）异质结发光二极管（LED）器件。测试结果表明，DPA微/纳米结构的不同形状确实会影响其性能。
Two novel shapes of 9,10-diphenylanthracene (DPA) micro/nanostructures: octahedron and sphere together with microrod and nanowire have been synthesized via a surfactant-assisted self-assembling process. These micro/nanostructures have been characterized by UV−vis, fluorescence spectra, X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), and transmission electron microscope (TEM). Our results indicated that the absorption and emission spectra of as-prepared particles were slightly blue-shift when the shape of DPA particles changed from octahedron to microrod and finally to nanowire. This result could be explained by the different growth directions of DPA micro/nanostructures. To study the relationship between shape and devices’ performance, the heterojunction light emitting diode (LED) devices of quartz/ITO/organic particles/n-SiC/Ti(10 nm)/Au(120 nm) have been prepared. The testing results showed that the different shapes of DPA micro/nanostructures did affect the performance of ...