Self-Assembled Multilayer Single-Walled Carbon Nanotube Thin Film Transistors and Doping Regulation
Semiconducting single-walled carbon nanotubes (SWCNTs) have stimulated tremendous research interest in high performance electronics thanks to their impressive mechanical and electronic properties. However, it is still challenging to prepare wafer-scale SWCNTs thin films and fine-tunable device perfo...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2025-01-01
|
| Series: | IEEE Journal of the Electron Devices Society |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10849582/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1825207015074430976 |
|---|---|
| author | Xiangxiang Gao Zhenhua Lin Jincheng Zhang Yue Hao Jingjing Chang |
| author_facet | Xiangxiang Gao Zhenhua Lin Jincheng Zhang Yue Hao Jingjing Chang |
| author_sort | Xiangxiang Gao |
| collection | DOAJ |
| description | Semiconducting single-walled carbon nanotubes (SWCNTs) have stimulated tremendous research interest in high performance electronics thanks to their impressive mechanical and electronic properties. However, it is still challenging to prepare wafer-scale SWCNTs thin films and fine-tunable device performance. Here, layer-by-layer (LbL) assembly is presented as an effective approach to prepare multilayer SWCNT thin films by coordinating poly(diallyldimethylammonium chloride) (PDDA) with SWCNTs. The thickness of SWCNTs thin film is linearly dependent on the bilayer numbers. Thin film transistors (TFTs) fabricated from SWCNTs thin films showed prominent device performance with a mobility of <inline-formula> <tex-math notation="LaTeX">$\rm 15.3 cm_{2} \cdot V_{1}\cdot s_{1}$ </tex-math></inline-formula>. Further the molecular dopants bis (trifluoromethane) sulfonimide (TFSI), with strong electro-withdrawing capability and protonating nature, was utilized to functionalize SWCNTs thin films, thereby regulating their electronic performances. The TFSI surface functionalization can remove excess electrons from SWCNT thin films, resulting in improved on-state current, increased carrier mobility and positively shifted threshold voltage. The molecular doping holds great promise for the future realization of large-area, low-power logic circuits and high-performance electronics. |
| format | Article |
| id | doaj-art-4be2442aa1594fe595c4b5d7eb6e160f |
| institution | Kabale University |
| issn | 2168-6734 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Journal of the Electron Devices Society |
| spelling | doaj-art-4be2442aa1594fe595c4b5d7eb6e160f2025-02-07T00:00:39ZengIEEEIEEE Journal of the Electron Devices Society2168-67342025-01-0113939710.1109/JEDS.2025.353259310849582Self-Assembled Multilayer Single-Walled Carbon Nanotube Thin Film Transistors and Doping RegulationXiangxiang Gao0https://orcid.org/0000-0003-4402-9764Zhenhua Lin1Jincheng Zhang2https://orcid.org/0000-0001-7332-6704Yue Hao3https://orcid.org/0000-0002-8081-2919Jingjing Chang4https://orcid.org/0000-0003-3773-182XAdvanced Interdisciplinary Research Center for Flexible Electronics, Academy of Advanced Interdisciplinary Research, Xidian University, Xi’an, ChinaAdvanced Interdisciplinary Research Center for Flexible Electronics, Academy of Advanced Interdisciplinary Research, Xidian University, Xi’an, ChinaAdvanced Interdisciplinary Research Center for Flexible Electronics, Academy of Advanced Interdisciplinary Research, Xidian University, Xi’an, ChinaAdvanced Interdisciplinary Research Center for Flexible Electronics, Academy of Advanced Interdisciplinary Research, Xidian University, Xi’an, ChinaAdvanced Interdisciplinary Research Center for Flexible Electronics, Academy of Advanced Interdisciplinary Research, Xidian University, Xi’an, ChinaSemiconducting single-walled carbon nanotubes (SWCNTs) have stimulated tremendous research interest in high performance electronics thanks to their impressive mechanical and electronic properties. However, it is still challenging to prepare wafer-scale SWCNTs thin films and fine-tunable device performance. Here, layer-by-layer (LbL) assembly is presented as an effective approach to prepare multilayer SWCNT thin films by coordinating poly(diallyldimethylammonium chloride) (PDDA) with SWCNTs. The thickness of SWCNTs thin film is linearly dependent on the bilayer numbers. Thin film transistors (TFTs) fabricated from SWCNTs thin films showed prominent device performance with a mobility of <inline-formula> <tex-math notation="LaTeX">$\rm 15.3 cm_{2} \cdot V_{1}\cdot s_{1}$ </tex-math></inline-formula>. Further the molecular dopants bis (trifluoromethane) sulfonimide (TFSI), with strong electro-withdrawing capability and protonating nature, was utilized to functionalize SWCNTs thin films, thereby regulating their electronic performances. The TFSI surface functionalization can remove excess electrons from SWCNT thin films, resulting in improved on-state current, increased carrier mobility and positively shifted threshold voltage. The molecular doping holds great promise for the future realization of large-area, low-power logic circuits and high-performance electronics.https://ieeexplore.ieee.org/document/10849582/Single-walled carbon nanotubeslayer-by-layer assemblythin film transistorsmolecular dopingbis (trifluoromethane) sulfonimide |
| spellingShingle | Xiangxiang Gao Zhenhua Lin Jincheng Zhang Yue Hao Jingjing Chang Self-Assembled Multilayer Single-Walled Carbon Nanotube Thin Film Transistors and Doping Regulation IEEE Journal of the Electron Devices Society Single-walled carbon nanotubes layer-by-layer assembly thin film transistors molecular doping bis (trifluoromethane) sulfonimide |
| title | Self-Assembled Multilayer Single-Walled Carbon Nanotube Thin Film Transistors and Doping Regulation |
| title_full | Self-Assembled Multilayer Single-Walled Carbon Nanotube Thin Film Transistors and Doping Regulation |
| title_fullStr | Self-Assembled Multilayer Single-Walled Carbon Nanotube Thin Film Transistors and Doping Regulation |
| title_full_unstemmed | Self-Assembled Multilayer Single-Walled Carbon Nanotube Thin Film Transistors and Doping Regulation |
| title_short | Self-Assembled Multilayer Single-Walled Carbon Nanotube Thin Film Transistors and Doping Regulation |
| title_sort | self assembled multilayer single walled carbon nanotube thin film transistors and doping regulation |
| topic | Single-walled carbon nanotubes layer-by-layer assembly thin film transistors molecular doping bis (trifluoromethane) sulfonimide |
| url | https://ieeexplore.ieee.org/document/10849582/ |
| work_keys_str_mv | AT xiangxianggao selfassembledmultilayersinglewalledcarbonnanotubethinfilmtransistorsanddopingregulation AT zhenhualin selfassembledmultilayersinglewalledcarbonnanotubethinfilmtransistorsanddopingregulation AT jinchengzhang selfassembledmultilayersinglewalledcarbonnanotubethinfilmtransistorsanddopingregulation AT yuehao selfassembledmultilayersinglewalledcarbonnanotubethinfilmtransistorsanddopingregulation AT jingjingchang selfassembledmultilayersinglewalledcarbonnanotubethinfilmtransistorsanddopingregulation |