文献类型：期刊文献

英文题名：Micro-spacing in-air sublimation of submillimeter-scaled rubrene nanoribbons and nanosheets for efficient optical waveguides

作者：Cao, Qiao-Jun[1];Lu, Cong-Rong[1];Wang, Qun[1];Yu, Yue[2];Wen, Shuang[1];Zhao, Ping[1];Shi, Bi-Yun[1];Wang, Xue-Dong[2];Huang, Han[3];Dou, Wei-Dong[1]

机构：[1]Shaoxing Univ, Dept Phys, Lab Low Dimens Carbon Mat, Shaoxing 312000, Peoples R China;[2]Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, 199 Renai Rd, Suzhou 215123, Jiangsu, Peoples R China;[3]Cent South Univ, Sch Phys & Elect, Hunan Key Lab Super Microstruct & Ultrafast Proc, Changsha 410083, Hunan, Peoples R China

年份：2020

卷号：87

外文期刊名：ORGANIC ELECTRONICS

收录：SCI-EXPANDED(收录号：WOS:000588019300047)、、EI(收录号：20204209354571)、Scopus(收录号：2-s2.0-85092466334)、WOS

基金：The work described in this paper was supported by grants from Natural Science Foundation of Zhejiang Province (No. LY19F040005), and the National Natural Science Foundation of China (No. 61474077).

语种：英文

外文关键词：Low dimensional organic crystals; Physical vapor deposition; Growth of organic crystals; Optical waveguide

外文摘要：Convenient and low-cost fabrication of large-scaled 1-dimensional (1D) and 2-dimensional (2D) organic crystals is vital for potential optoelectronic applications such as light-emitting diodes, transistors, lasers and optical waveguides. In this work, we report a feasible approach to fabricate submillimeter-scaled rubrene nano-ribbon (1D) and nano-sheet (2D), conducted in a micrometer-confined space and in air condition. It was found that the 1D nano-ribbons and 2D nano sheets can be selectively fabricated by tuning the heating rate of the source holder on which rubrene powder was placed. A vapor-to-solid mechanism is established for the growth of rubrene crystals. It was revealed that the growth of 1D ribbons was determined by the diffusion of rubrene on substrate surface while the growth of 2D sheets was governed by the homogeneous nucleation. Selected area electron diffraction and x-ray diffraction analysis revealed that the rubrene nano-ribbons and nano-sheets share the same single-crystalline structure with an orthorhombic cell of a = 14.49 angstrom, b = 7.21 angstrom and c = 26.92 angstrom. Luminescence and optical transportation measurement revealed the quite low loss optical-loss coefficient at similar to 590 nm for both rubrene nano-ribbons and nano-sheets, indicating their promising applications as efficient optical waveguides.