Cobalt phthalocyanine nanowires: Growth, crystal structure, and optical properties

Crystal Research and Technology - Tập 51 Số 2 - Trang 154-159 - 2016
Xiaolin Ji1,2,3, Taoyu Zou1,2,3, Hao Gong4, Qiong Wu5, Zhenfang Qiao1,2, Wei Wu6, Hai Wang2
1College of Physical Science and Technology, Yunnan University, Kunming, 650091 People's Republic of China
2Key Laboratory of Yunnan Provincial Higher Education Institutions for Organic Optoelectronic Materials and Devices, Kunming University, Kunming, 650214 People's Republic of China
3these authors contributed equally to this work
4Department of materials science and engineering, National University of Singapore, Singapore 119260, Singapore
5Department of Chemical Science and Technology, Kunming University, Yunnan, Kunming, 65200 People's Republic of China
6Department of Physics and Astronomy and London Centre for Nanotechnology, University College London, Gower Street, London WC1E 6BT, United Kingdom

Tóm tắt

Cobalt phthalocyanine nanowires with new crystal structure and broad optical absorption spectra were fabricated by using organic vapor phase deposition method. The morphology, crystal structure and optical properties of CoPc nanowires were characterized by SEM, X‐ray diffraction, Fourier transform infrared and UV‐visible spectroscopies. Analyses of X‐ray diffraction patterns and Fourier transform infrared spectra indicate that the crystal structure of CoPc nanowires represents a new polymorph, which is designated J‐CoPc. These J‐CoPc nanowires with high directionality (average diameter ∼50 nm) surprisingly possess much broader optical absorption spectra in the visible spectral region than those of the α‐ and β‐phase CoPc, enabling high potential for practical applications in novel molecular electronic/optical devices.

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Crystal Research and Technology

Tập 51 Số 2

154-159

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