Directly Fabricated Flexible Photodetector Based on TiO₂-Doped Carbon Nanosheets Film
Flexible photodetector is crucial for the intelligent industrial applications. However, the optical-sensitive materials are usually grown in a high temperature and then transferred onto the flexible substrate. This paper reported a directly fabricated flexible photodetector based on TiO2-doped Graph...
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Journal of the Electron Devices Society |
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| Online Access: | https://ieeexplore.ieee.org/document/10580991/ |
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| author | Yunlong Zhang Xiaolin Li Zhipeng Cao Qiang Wu Gong Chen Bo Wen Dongfeng Diao Xi Zhang |
| author_facet | Yunlong Zhang Xiaolin Li Zhipeng Cao Qiang Wu Gong Chen Bo Wen Dongfeng Diao Xi Zhang |
| author_sort | Yunlong Zhang |
| collection | DOAJ |
| description | Flexible photodetector is crucial for the intelligent industrial applications. However, the optical-sensitive materials are usually grown in a high temperature and then transferred onto the flexible substrate. This paper reported a directly fabricated flexible photodetector based on TiO2-doped Graphene Nanosheets Embedded Carbon (GNEC)film. An Electron Cyclotron Resonance (ECR) system was employed to in-situ deposit TiO2-doped GNEC film on a polyimide substrate, which were subsequently sensitized with N719 dye to fabricate the TiO2@GNEC photodetector. The GNEC film contains vertically aligned Graphene Nanosheets (GNs), which exhibit high-density edge states. The edge states suppress the recombination rate of photo-generated electron-hole pairs, thereby significantly enhancing the photo-responsive performance. The photodetector demonstrates a high photo responsivity of 0.82 mA/W and a response time of 1.93 seconds. Due to the in-situ manufacturing capabilities of the ECR system, which avoids defects from secondary material transfers, the photodetector array exhibits excellent consistency and achieves clear recognition of light patterns in both flat and bent states. |
| format | Article |
| id | doaj-art-c1cbee84d4ef4da0a5bb0a5e13d3470f |
| institution | Kabale University |
| issn | 2168-6734 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Journal of the Electron Devices Society |
| spelling | doaj-art-c1cbee84d4ef4da0a5bb0a5e13d3470f2025-01-29T00:00:13ZengIEEEIEEE Journal of the Electron Devices Society2168-67342024-01-011267768110.1109/JEDS.2024.342229210580991Directly Fabricated Flexible Photodetector Based on TiO₂-Doped Carbon Nanosheets FilmYunlong Zhang0https://orcid.org/0009-0000-9945-0033Xiaolin Li1Zhipeng Cao2Qiang Wu3Gong Chen4https://orcid.org/0009-0002-0353-4713Bo Wen5Dongfeng Diao6Xi Zhang7https://orcid.org/0000-0002-2910-4773School of Mechatronics and Control Engineering, Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, Shenzhen University, Shenzhen, ChinaSchool of Mechatronics and Control Engineering, Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, Shenzhen University, Shenzhen, ChinaR&D Department, Shenzhen Lihuy Medical Technology Company Ltd., Shenzhen, ChinaResearch Center of Medical Plasma Technology, Shenzhen University, Shenzhen, ChinaR&D Department, Shenzhen Milebot Robotics Company Ltd., Shenzhen, ChinaSchool of Mechatronics and Control Engineering, Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, Shenzhen University, Shenzhen, ChinaSchool of Mechatronics and Control Engineering, Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, Shenzhen University, Shenzhen, ChinaSchool of Mechatronics and Control Engineering, Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, Shenzhen University, Shenzhen, ChinaFlexible photodetector is crucial for the intelligent industrial applications. However, the optical-sensitive materials are usually grown in a high temperature and then transferred onto the flexible substrate. This paper reported a directly fabricated flexible photodetector based on TiO2-doped Graphene Nanosheets Embedded Carbon (GNEC)film. An Electron Cyclotron Resonance (ECR) system was employed to in-situ deposit TiO2-doped GNEC film on a polyimide substrate, which were subsequently sensitized with N719 dye to fabricate the TiO2@GNEC photodetector. The GNEC film contains vertically aligned Graphene Nanosheets (GNs), which exhibit high-density edge states. The edge states suppress the recombination rate of photo-generated electron-hole pairs, thereby significantly enhancing the photo-responsive performance. The photodetector demonstrates a high photo responsivity of 0.82 mA/W and a response time of 1.93 seconds. Due to the in-situ manufacturing capabilities of the ECR system, which avoids defects from secondary material transfers, the photodetector array exhibits excellent consistency and achieves clear recognition of light patterns in both flat and bent states.https://ieeexplore.ieee.org/document/10580991/Photodetectornanomaterialscyclotron resonancevertical graphene |
| spellingShingle | Yunlong Zhang Xiaolin Li Zhipeng Cao Qiang Wu Gong Chen Bo Wen Dongfeng Diao Xi Zhang Directly Fabricated Flexible Photodetector Based on TiO₂-Doped Carbon Nanosheets Film IEEE Journal of the Electron Devices Society Photodetector nanomaterials cyclotron resonance vertical graphene |
| title | Directly Fabricated Flexible Photodetector Based on TiO₂-Doped Carbon Nanosheets Film |
| title_full | Directly Fabricated Flexible Photodetector Based on TiO₂-Doped Carbon Nanosheets Film |
| title_fullStr | Directly Fabricated Flexible Photodetector Based on TiO₂-Doped Carbon Nanosheets Film |
| title_full_unstemmed | Directly Fabricated Flexible Photodetector Based on TiO₂-Doped Carbon Nanosheets Film |
| title_short | Directly Fabricated Flexible Photodetector Based on TiO₂-Doped Carbon Nanosheets Film |
| title_sort | directly fabricated flexible photodetector based on tio x2082 doped carbon nanosheets film |
| topic | Photodetector nanomaterials cyclotron resonance vertical graphene |
| url | https://ieeexplore.ieee.org/document/10580991/ |
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