Spin injection and transport in single-crystalline organic spin valves based on TIPS-pentacene

作     者：Ying Wang Jiarong Yao Shuaishuai Ding Siyu Guo Dapeng Cui Xinyue Wang Shuyuan Yang Lijuan Zhang Xinzi Tian Di Wu Chao Jin Rongjin Li Wenping Hu 王颖;姚佳荣;丁帅帅;郭思宇;崔大鹏;王新月;杨书院;张利娟;田馨孜;吴镝;金朝;李荣金;胡文平

作者机构：Tianjin Key Laboratory of Molecular Optoelectronic SciencesDepartment of ChemistrySchool of ScienceTianjin University and Collaborative Innovation Center of Chemical Science and EngineeringTianjin 300072China National Laboratory of Solid State MicrostructuresDepartment of Materials Science and Engineering and Jiangsu Key Laboratory for Artificial Functional MaterialsNanjing UniversityNanjing 210093China Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing TechnologyDepartment of PhysicsSchool of ScienceTianjin UniversityTianjin 300072China Joint School of National University of Singapore and Tianjin UniversityInternational Campus of Tianjin UniversityBinhai New CityFuzhou 350207China 

出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)

年 卷 期：2021年第64卷第11期

页      面：2795-2804页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：the National Natural Science Foundation of China(61674116,51873148,51633006,and 52003190) the Ministry of Science and Technology of China(2016YFA0202302) the Natural Science Foundation of Tianjin(18JC-YBJC18400) 

主　　题：organic single crystal organic semiconductor magnetoresistance organic spin valve spintronics 

摘      要：Single crystals of organic semiconductors with perfect crystal structure and minimal density of defects can exhibit high mobility and low spin scattering compared with their amorphous or polycrystalline ***,these materials are promising candidates as the spin transport media to obtain long spin relaxation times and spin diffusion lengths in spintronic ***,the investigation of spin injection and transport properties in organic single crystals is hindered by the inability to construct devices such as single-crystalline organic spin valves(OSVs).Herein,thin and large organic single crystals of 6,13-bis(triisopropylsilylethynyl)pentacene(TIPS-pentacene)were grown on a liquid substrate and transferred to a target substrate carrying ferromagnetic electrodes to construct single-crystalline *** magnetoresistance(MR)responses of the single crystals were investigated to study their spin injection and transport *** value as high as 17%was probed with an intermediate layer thickness of 269 *** importantly,spin transport was still observed in a single crystal of a thickness up to 457 nm,which was much larger than that of polycrystalline thin *** research provides a general methodology for constructing single-crystalline OSVs and paves the way to probe the intrinsic spin transport properties of organic semiconductors based on single crystals.