Controllable Molecular Packing Motif and Overlap Type in Organic Nanomaterials for Advanced Optical Properties

• DOI: 10.3390/cryst8010022
• Publication Date: 2018-01-11T18:36:15Z
• Authors: Taoyu Zou; Xiaoyan Wang; Haidong Ju; Li Zhao; Tingting Guo; Wei Wu; Hai Wang
• Keywords: Nanomaterials

The optical properties of organic materials are very sensitive to subtle structural modification, and a proper understanding the structure-property relationship is essential improve performance electronic devices. phase transitions η-CuPc α-CuPc, then β-CuPc were investigated using In situ X-ray diffraction differential scanning calorimetry (DSC). five stages in phase-transition process from low high-temperature observed, which consisted (1) η-CuPc; (2) mixture η- α-CuPc; (3) η-, α- β-CuPc; (4) (5) β-CuPc. vibrational at different correlated molecular packing motif molecule overlap type through systematic analyses Fourier–transform infrared, Raman UV-VIS spectra. Moreover, mechanism for morphology evolution was also discussed detail.