中国物理B ›› 2019, Vol. 28 ›› Issue (8): 88101-088101.doi: 10.1088/1674-1056/28/8/088101

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Thin-film growth behavior of non-planar vanadium oxide phthalocyanine

Tian-Jiao Liu(刘天娇), Hua-Yan Xia(夏华艳), Biao Liu(刘标), Tim S Jones, Mei Fang(方梅), Jun-Liang Yang(阳军亮)   

  1. 1 Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, China;
    2 Department of Chemistry, University of Warwick, Coventry, CV4 7AL, United Kingdom
  • 收稿日期:2019-04-10 修回日期:2019-05-21 出版日期:2019-08-05 发布日期:2019-08-05
  • 通讯作者: Jun-Liang Yang E-mail:junliang.yang@csu.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant No. 51673214) and the National Key Research and Development Program of China (Grant No. 2017YFA0206600).

Thin-film growth behavior of non-planar vanadium oxide phthalocyanine

Tian-Jiao Liu(刘天娇)1, Hua-Yan Xia(夏华艳)1, Biao Liu(刘标)1, Tim S Jones2, Mei Fang(方梅)1, Jun-Liang Yang(阳军亮)1   

  1. 1 Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, China;
    2 Department of Chemistry, University of Warwick, Coventry, CV4 7AL, United Kingdom
  • Received:2019-04-10 Revised:2019-05-21 Online:2019-08-05 Published:2019-08-05
  • Contact: Jun-Liang Yang E-mail:junliang.yang@csu.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant No. 51673214) and the National Key Research and Development Program of China (Grant No. 2017YFA0206600).

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摘要：

The thin film properties of organic semiconductors are very important to the device performance. Herein, non-planar vanadyl phthalocyanine (VOPc) thin films grown on rigid substrates of indium tin oxide, silicon dioxide, and flexible substrate of kapton by organic molecular beam deposition under vacuum conditions are systematically studied via atomic force microscopy and x-ray diffraction. The results clearly reveal that the morphology and grain size are strongly dependent on the substrate temperature during the process of film deposition. Meanwhile, the VOPc films with the structure of phase I or phase Ⅱ can be modulated via in situ annealing and post-annealing temperature. Furthermore, the crystalline structure and molecular orientation of vapor-deposited VOPc can be controlled using molecular template layer 3, 4, 9, 10-perylene-tetracarboxylic dianhydride (PTCDA), the VOPc film of which exhibits the phase I structure. The deep understanding of growth mechanism of non-planar VOPc film provides valuable information for controlling structure-property relationship and accelerates the application in electronic and optoelectronic devices.

关键词: organic semiconductor, thin film, vanadyl phthalocyanine (VOPc), growth behavior

Abstract:

The thin film properties of organic semiconductors are very important to the device performance. Herein, non-planar vanadyl phthalocyanine (VOPc) thin films grown on rigid substrates of indium tin oxide, silicon dioxide, and flexible substrate of kapton by organic molecular beam deposition under vacuum conditions are systematically studied via atomic force microscopy and x-ray diffraction. The results clearly reveal that the morphology and grain size are strongly dependent on the substrate temperature during the process of film deposition. Meanwhile, the VOPc films with the structure of phase I or phase Ⅱ can be modulated via in situ annealing and post-annealing temperature. Furthermore, the crystalline structure and molecular orientation of vapor-deposited VOPc can be controlled using molecular template layer 3, 4, 9, 10-perylene-tetracarboxylic dianhydride (PTCDA), the VOPc film of which exhibits the phase I structure. The deep understanding of growth mechanism of non-planar VOPc film provides valuable information for controlling structure-property relationship and accelerates the application in electronic and optoelectronic devices.

Key words: organic semiconductor, thin film, vanadyl phthalocyanine (VOPc), growth behavior

中图分类号:  (Organic semiconductors)

  • 81.05.Fb
68.55.-a (Thin film structure and morphology) 81.05.Dz (II-VI semiconductors) 81.10.-h (Methods of crystal growth; physics and chemistry of crystal growth, crystal morphology, and orientation)