Novel Strategy for Organic Cocrystals of n-Type and p-Type Organic Semiconductors with Advanced Optoelectronic Properties

Taoyu Zou; Jiawei Chang; Qiuyuan Chen; Zhifeng Nie; Liangfei Duan; Tingting Guo; Yumin Song; Wei Wu; Hai Wang

doi:10.1021/acsomega.0c00276

Novel Strategy for Organic Cocrystals of n-Type and p-Type Organic Semiconductors with Advanced Optoelectronic Properties

ACS Omega. 2020 May 19;5(21):12067-12072. doi: 10.1021/acsomega.0c00276. eCollection 2020 Jun 2.

Authors

Taoyu Zou^{1

2}, Jiawei Chang¹, Qiuyuan Chen¹, Zhifeng Nie^{1

2}, Liangfei Duan^{1

2}, Tingting Guo^{1

2}, Yumin Song^{1

2}, Wei Wu³, Hai Wang^{1

2}

Affiliations

¹ Key Laboratory of Yunnan Provincial Higher Education Institutions for Organic Optoelectronic Materials and Devices, Kunming University, Kunming 650214, People's Republic of China.
² Kunming DeepLand Nanomaterial Research Institute, Yunnan Ocean Organic Optoelectronic Technology Ltd, Kunming 650214, People's Republic of China.
³ UCL Department of Physics and Astronomy and London Centre for Nanotechnology, University College London, Gower Street, London WC1E 6BT, United Kingdom.

Abstract

Cocrystallization has been applied widely for material synthesis. Recently cocrystal of organic molecules has been developing rapidly, taking the advantages of the flexibility and self-assembly of organic molecules. Here we report an experimental study of a cocrystal of copper-phthalocyanines and fluorinated ones. We have grown the samples via the vapor-phase deposition of the mixture with different mass ratios from 1:13.5 to 6:1. As suggested by our scanning electron microscopy (SEM), X-ray diffraction (XRD), and Raman spectroscopy, new crystal structures and morphologies through our novel strategy for the cocrystallization of these molecules have been found. Our work will provide a solid foundation to systematically synthesize the cocrystal of phthalocyanine molecules with new crystal structures, thus providing the opportunity to advance material properties.