论文标题
电解质门控（6,5）单壁碳纳米管网络中的冷冻P-N连接发射
Trion emission from frozen p-n junctions in networks of electrolyte-gated (6,5) single-walled carbon nanotubes
论文作者
论文摘要
我们展示了激子和带电的激子（TRION）电致发光，从聚合物分级的，半导体（6,5）单壁碳纳米管网络中的冷冻P-N连接中发明了电致发光。用离子液体进行电解质门进行，以在低施加电压下在纳米管网络中在纳米管网络中实现高密度和电子的注入。通过在双极液体中冷却离子液体熔点下方的设备来形成静态P-N连接。这些冷冻连接处显示了二极管样的整流，并能够研究受控条件下电子孔重组和近红外电致发光。激子和红移的Trion发射对电致发光光谱的贡献受P-N结形成的初始参数（平衡或不平衡）和所施加的侧向偏置的影响，但不取决于温度（30-200 K）。沿固定连接处的倾斜电位轮廓，因此发现重组区域内的多余载体数量主要确定发射强度，并观察到TRION与激子比率。
We demonstrate exciton and charged exciton (trion) electroluminescence from frozen p-n junctions in networks of polymer-sorted, semiconducting (6,5) single-walled carbon nanotubes. Electrolyte-gating with an ionic liquid was employed to achieve injection and accumulation of high densities of holes and electrons in the nanotube network at low applied voltages. Static p-n junctions were formed by cooling the devices below the melting point of the ionic liquid while in the ambipolar regime. These frozen junctions showed diode-like rectification and enabled the investigation of electron-hole recombination and near-infrared electroluminescence under controlled conditions. The contributions of exciton and red-shifted trion emission to the electroluminescence spectra were influenced by the initial parameters of the p-n junction formation (balanced or unbalanced) and the applied lateral bias, but did not depend on temperature (30-200 K). The tilted potential profile along the fixed junction and consequently the number of excess carriers within the recombination zone were found to predominantly determine the emission intensity and observed trion to exciton ratio.
