| Yang Xiao-yan,Wu Xiao-ming,Jiang Chun-xia,Han Xue-song,Gao Zhi-qi,Shen Li-ying,Wei Jun,Yin Shou-gen.Research of organic field effect transistors based on semiconducting single-walled carbon nanotubes[J].Optoelectronics Letters,2012,8(4):260-263 |
| Research of organic field effect transistors based on semiconducting single-walled carbon nanotubes |
| Author Name | Affiliation | | Yang Xiao-yan | Key Laboratory of Display Material and Photoelectric Devices, Ministry of Education of China, Institute of Material
Physics, Tianjin University of Technology, Tianjin 300384, China | | Wu Xiao-ming | Key Laboratory of Display Material and Photoelectric Devices, Ministry of Education of China, Institute of Material Physics, Tianjin University of Technology, Tianjin 300384, China | | Jiang Chun-xia | Key Laboratory of Display Material and Photoelectric Devices, Ministry of Education of China, Institute of Material Physics, Tianjin University of Technology, Tianjin 300384, China | | Han Xue-song | Key Laboratory of Display Material and Photoelectric Devices, Ministry of Education of China, Institute of Material Physics, Tianjin University of Technology, Tianjin 300384, China | | Gao Zhi-qi | Key Laboratory of Display Material and Photoelectric Devices, Ministry of Education of China, Institute of Material Physics, Tianjin University of Technology, Tianjin 300384, China | | Shen Li-ying | Key Laboratory of Display Material and Photoelectric Devices, Ministry of Education of China, Institute of Material Physics, Tianjin University of Technology, Tianjin 300384, China | | Wei Jun | Key Laboratory of Display Material and Pho toelectric Devices. Min istry of Education of Ch ina. Institute of Ma terial Physics. Tianjin University of Technology. Tianjin 300384. China；
Singapore Institute ofManufacturing Technology, 71 Nanyang Drive, Singapore 6380750, Singapore | | Yin Shou-gen | Key Laboratory of Display Material and Photoelectric Devices, Ministry of Education of China, Institute of Material Physics, Tianjin University of Technology, Tianjin 300384, China |
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| Abstract: |
| The metal-conducting single-walled carbon nanotubes (m-SWNTs) with small diameters (0.7 nm 1.1 nm) are selectively removed
from the single-walled carbon nanotubes (SWNTs) by using HNO3/H2SO4 mixed solution. Semiconducting single-walled carbon nanotubes (s-SWNTs) can be separated efficiently from the SWNTs with
high controllability and purity based on this novel method, and the outcome is characterized by Raman spectrum. Moreover,
the organic field effect transistors (OFETs) are fabricated based on the poly (3-hexylthiophene-2, 5-diyl) (P3HT), and untreated
SWNTs and separated SWNTs (s-SWNTs) are mixed with P3HT, respectively. It could be found that the P3HT/s-SWNT device exhibits
a better field effect characteristic compared with the P3HT device. The current on/off ratio is increased by 4 times, the
threshold voltage is also increased from ?28 V to ?22 V, and the mobility is increased from 3×10?3 cm2/Vs to 5×10?3cm2/Vs. |
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| This work has been supported by the National Natural Science Foundation of China (Nos. 60676051, 60876046, 60906022), and the Natural Science
Fund of Tianjin (Nos.07JCYBJC12700 and 10JCYBJC01100). |
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