Controllable preparation of copper phthalocyanine single crystal nano column and its chlorine gas sensing properties
Jianhong Zhao,
Zhenfang Qiao,
Yumin Zhang,
Taoyu Zou,
Leiming Yu,
Li Luo,
Xiaoyan Wang,
Yiji Yang,
Hai Wang,
Libin Tang
Affiliations
Jianhong Zhao
Key laboratory of Yunnan Provincial Higher Education Institutions for Organic Optoelectronic Materials and Devices, Kunming University, Kunming 650214, China
Zhenfang Qiao
Key laboratory of Yunnan Provincial Higher Education Institutions for Organic Optoelectronic Materials and Devices, Kunming University, Kunming 650214, China
Yumin Zhang
Department of Physics and Astronomy, Yunnan University, Kunming 650091, China
Taoyu Zou
Key laboratory of Yunnan Provincial Higher Education Institutions for Organic Optoelectronic Materials and Devices, Kunming University, Kunming 650214, China
Leiming Yu
Key laboratory of Yunnan Provincial Higher Education Institutions for Organic Optoelectronic Materials and Devices, Kunming University, Kunming 650214, China
Li Luo
Key laboratory of Yunnan Provincial Higher Education Institutions for Organic Optoelectronic Materials and Devices, Kunming University, Kunming 650214, China
Xiaoyan Wang
Key laboratory of Yunnan Provincial Higher Education Institutions for Organic Optoelectronic Materials and Devices, Kunming University, Kunming 650214, China
Yiji Yang
Key laboratory of Yunnan Provincial Higher Education Institutions for Organic Optoelectronic Materials and Devices, Kunming University, Kunming 650214, China
Hai Wang
Key laboratory of Yunnan Provincial Higher Education Institutions for Organic Optoelectronic Materials and Devices, Kunming University, Kunming 650214, China
Libin Tang
Kunming Institute of Physics, Kunming 650223, China
The unsubstituted copper phthalocyanine (CuPc) single crystal nano columns were fabricated for the first time as chlorine (Cl2) gas sensors in this paper. The nano columns of CuPc have been prepared on different substrates via template-free physical vapor deposition (PVD) approach. The growth mechanism of CuPc nano column on quartz was explored and the same condition used on other substrates including glass, sapphire (C-plane, M-plane, R-plane), Si and SiO2/Si came to a same conclusion, which confirmed that the aligned growth of CuPc nano column is not substrate-dependent. And then the CuPc nano column with special morphology was integrated as in-situ sensor device which exhibits high sensitivity and selectivity towards Cl2 at room temperature with a minimum detection limit as low as 0.08 ppm. The response of sensor was found to increase linearly (26∼659%) with the increase for Cl2 within concentration range (0.08∼4.0ppm). These results clearly demonstrate the great potential of the nano column growth and device integration approach for sensor device.
