鄭永豪教授，2004-2011年就讀于英國杜倫大學，并獲得博士學位（本碩博連讀）。隨后5年以博士后身份分別在美國加州大學圣芭芭拉分校（Prof. Fred Wudl）和美國萊斯大學（Prof. James Tour）開展研究工作。鄭永豪教授主要從事有機共軛材料的設(shè)計與合成，從而研制新型的光電器件。在基于有機發(fā)光材料 （Organic light emitting materials）、穩(wěn)定自由基（Stable radicals）、高分子單晶 (Single crystal polymer) 及石墨烯納米材料 的研究領(lǐng)域內(nèi)，研制出一系列新型材料及揭示了相關(guān)的發(fā)光、電子傳輸、 近紅外探測等新特性。在Science, Advanced Materials, Angewandte Chemie, Journal of the American Chemical Society等一系列國際權(quán)威期刊發(fā)表論文30余篇。2017年加入電子科技大學光電科學與工程學院并組建了前沿材料探索實驗室。
Abstract
Organic radicals are fundamentally interesting due to rich science in physics and chemistry. Obtaining high-spin-state organic solids at ambient conditions has been the goal of organic materials scientists, chemists, and physicists because they would enable, not only a fundamental understanding of the nature of spin–spin correlations, but also provide a wide range of advanced applications, quantum information processing systems, and organic spintronics. In this report, a stable organic diradicaloid with an intermolecular quintet state at room temperature as a polycrystalline solid is found. Very excitingly, the diradicaloids with stable coexisting close-shell and open‐shell forms exhibit unconventional self‐doping behavior in the solid‐state electronic devices that is temperature (T) tunable and reversible. The doping is strengthened by the increased T, leading to the absence of off‐states (Ioff) in the organic transistors.
