Large Sheet‐Like Elastic Crystals for Flexible Organic Light‐Emitting Diode
Abstract
ABSTRACT Large sheet‐like elastic crystals have vast potential applications in 2D flexible optoelectronic applications, such as information display and imaging, but this potential has been limited as the sheet‐like crystal habit is not commonly observed in molecular crystals. Here, we report the crystal structure, mechanical elastic properties, mechanism of deformation, and 2D optoelectronic applications of 2,7‐bis(4‐methoxyphenyl)‐9H‐fluoro‐9‐one (BMeOPhFO). Elastically flexible crystals of 2D BMeOPhFO‐R were obtained on a centimeter scale in both length and width. The elastic bending performance and mechanism were studied thoroughly in BMeOPhFO‐R and its acicular polymorph BMeOPhFO‐O, determined by micro‐focused X‐ray diffraction. Finally, a preliminary flexible organic light‐emitting diode based on an elastic 2D single crystal of BMeOPhFO‐R (bending curvature <5 mm) was preliminarily prepared with low driving voltage and electroluminescence. This study will not only promote the future development of flexible molecular crystals with 2D habits, in addition to providing insights for applications in 2D flexible optoelectronics application.
Article Details
Authors (21)
Chuanxin Wei
Vivian G. Shang
School of Chemistry and Molecular Biosciences The University of Queensland Brisbane Queensland Australia
Ruofei Jia
State Key Laboratory of Bioinspired Interfacial Materials Science Institute of Functional Nano & Soft Materials (FUNSOM) Soochow University Suzhou Jiangsu China
Lizhi Wang
College of Chemistry and Chemical Engineering
Qingqing Lu
Shuang Li
Yong Zhang
Ying Xu
Analia I. Chamorro Orué
School of Chemistry and Molecular Biosciences The University of Queensland Brisbane Queensland Australia
Xinyu Du
Jinyi Lin
Qiang Zhao
Lubing Bai
Linghai Xie
Key Laboratory for Organic Electronics and Information Displays, Institute of Advanced Materials (IAM)
Jack K. Clegg
School of Chemistry and Molecular Biosciences
Jiansheng Jie
Institute of Functional Nano & Soft Materials, Soochow University
Man Xu
Center for Advanced Radiation Sources, The University of Chicago
Xuehua Ding
State Key Laboratory of Flexible Electronics (LoFE) & Institute of Advanced Materials (IAM) Nanjing Tech University (NanjingTech) Nanjing China
Xiujuan Zhang
Department of Microbiology, Molecular Genetics and Immunology, University of Kansas
Jianming Zhang
Institute of Quantum and Sustainable Technology (IQST), School of Chemistry and Chemical Engineering
Wei Huang