Ming-jie Yang, Wei Liu, Jia-lin Sun, Jin-quan Wei, and Jia-lin Zhu, Fabrication of double-walled carbon nanotube film/TiO2 nanotube array heterojunctions with length-dependent photoresponse for broad band photodetectors, Int. J. Miner. Metall. Mater., 20(2013), No. 3, pp. 307-312. https://doi.org/10.1007/s12613-013-0728-1
Cite this article as:
Ming-jie Yang, Wei Liu, Jia-lin Sun, Jin-quan Wei, and Jia-lin Zhu, Fabrication of double-walled carbon nanotube film/TiO2 nanotube array heterojunctions with length-dependent photoresponse for broad band photodetectors, Int. J. Miner. Metall. Mater., 20(2013), No. 3, pp. 307-312. https://doi.org/10.1007/s12613-013-0728-1
Ming-jie Yang, Wei Liu, Jia-lin Sun, Jin-quan Wei, and Jia-lin Zhu, Fabrication of double-walled carbon nanotube film/TiO2 nanotube array heterojunctions with length-dependent photoresponse for broad band photodetectors, Int. J. Miner. Metall. Mater., 20(2013), No. 3, pp. 307-312. https://doi.org/10.1007/s12613-013-0728-1
Citation:
Ming-jie Yang, Wei Liu, Jia-lin Sun, Jin-quan Wei, and Jia-lin Zhu, Fabrication of double-walled carbon nanotube film/TiO2 nanotube array heterojunctions with length-dependent photoresponse for broad band photodetectors, Int. J. Miner. Metall. Mater., 20(2013), No. 3, pp. 307-312. https://doi.org/10.1007/s12613-013-0728-1
Fabrication of double-walled carbon nanotube film/TiO2 nanotube array heterojunctions with length-dependent photoresponse for broad band photodetectors
Laboratory of Advanced Materials, Department of Material Science and Engineering, Tsinghua University, Beijing, 100084, China
State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
Key Laboratory for Advanced Materials Processing Technology of Education Ministry, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
A novel photodetector based on double-walled carbon nanotube (DWCNT) film/TiO2 nanotube array (TNA) heterojunctions was fabricated, which exhibited high photoresponse in a broad spectral range. The photoresponse of the detector was dramatically dependent on the length of the TNAs. High photocurrent-to-dark current ratio with a value of 3360 was observed in the visible range by optimizing the lengths of the TNAs. The photosensitive regions could be extended into the near-infrared range. These results reveal that DWCNT film/TNA heterojunctions show potential applications for broad band photodetectors.
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