Low-power photodetectors based on PVA-modified reduced graphene oxide hybrid solutions
Photodetectors based on reduced graphene oxide (rGO) have attracted much attention owing to their simple and low-cost fabrication process. However, the aggregation and defects of rGO flakes still limit the performance of rGO photodetectors. Controlling the composition of rGO has become a vital facto...
| मुख्य लेखकों: | , , , , , , , , |
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| अन्य लेखक: | |
| स्वरूप: | Journal Article |
| भाषा: | English |
| प्रकाशित: |
2022
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| विषय: | |
| ऑनलाइन पहुंच: | https://hdl.handle.net/10356/162109 |
| _version_ | 1826117733125718016 |
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| author | Shih, Yi-Shan Li, Wei-Chen Shen, Jun-Hao Chu, Shao-Yu Uen, Wu-Yih Lee, Hsin-Ying Lin, Gong-Ru Chen, Yu-Cheng Tu, Wei-Chen |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Shih, Yi-Shan Li, Wei-Chen Shen, Jun-Hao Chu, Shao-Yu Uen, Wu-Yih Lee, Hsin-Ying Lin, Gong-Ru Chen, Yu-Cheng Tu, Wei-Chen |
| author_sort | Shih, Yi-Shan |
| collection | NTU |
| description | Photodetectors based on reduced graphene oxide (rGO) have attracted much attention owing to their simple and low-cost fabrication process. However, the aggregation and defects of rGO flakes still limit the performance of rGO photodetectors. Controlling the composition of rGO has become a vital factor for its prospective applications. For example, the interconnection between rGO and polymers for modified morphologies of rGO films leads to an enhanced performance of devices. In this work, a practical approach to engineer surface uniformity and enhance the performance of a photodetector by modifying the rGO film with hydrophilic polymers poly(vinyl alcohol) (PVA) is reported. Compared with the rGO photodetector, the on/off ratio for the PVA/rGO photodetector shows 3.5 times improvement, and the detectivity shows 53% enhancement even when the photodetector is operated at a low bias of 0.3 V. This study provides an effective route to realize PVA/rGO photodetectors with a low-power operation which shows promising opportunities for the future development of green systems. |
| first_indexed | 2024-10-01T04:32:06Z |
| format | Journal Article |
| id | ntu-10356/162109 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:32:06Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1621092022-10-04T06:40:09Z Low-power photodetectors based on PVA-modified reduced graphene oxide hybrid solutions Shih, Yi-Shan Li, Wei-Chen Shen, Jun-Hao Chu, Shao-Yu Uen, Wu-Yih Lee, Hsin-Ying Lin, Gong-Ru Chen, Yu-Cheng Tu, Wei-Chen School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Low-Power Photodetectors Photodetectors based on reduced graphene oxide (rGO) have attracted much attention owing to their simple and low-cost fabrication process. However, the aggregation and defects of rGO flakes still limit the performance of rGO photodetectors. Controlling the composition of rGO has become a vital factor for its prospective applications. For example, the interconnection between rGO and polymers for modified morphologies of rGO films leads to an enhanced performance of devices. In this work, a practical approach to engineer surface uniformity and enhance the performance of a photodetector by modifying the rGO film with hydrophilic polymers poly(vinyl alcohol) (PVA) is reported. Compared with the rGO photodetector, the on/off ratio for the PVA/rGO photodetector shows 3.5 times improvement, and the detectivity shows 53% enhancement even when the photodetector is operated at a low bias of 0.3 V. This study provides an effective route to realize PVA/rGO photodetectors with a low-power operation which shows promising opportunities for the future development of green systems. This research was supported by the Ministry of Science and Technology, Taiwan (109-2221-E-006 -212 and 110-2218-E-007 -052 -MBK). 2022-10-04T06:40:09Z 2022-10-04T06:40:09Z 2022 Journal Article Shih, Y., Li, W., Shen, J., Chu, S., Uen, W., Lee, H., Lin, G., Chen, Y. & Tu, W. (2022). Low-power photodetectors based on PVA-modified reduced graphene oxide hybrid solutions. Macromolecular Rapid Communications, 43(8), e2100854-. https://dx.doi.org/10.1002/marc.202100854 1022-1336 https://hdl.handle.net/10356/162109 10.1002/marc.202100854 35254691 2-s2.0-85126179637 8 43 e2100854 en Macromolecular Rapid Communications © 2022 Wiley-VCH GmbH. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Low-Power Photodetectors Shih, Yi-Shan Li, Wei-Chen Shen, Jun-Hao Chu, Shao-Yu Uen, Wu-Yih Lee, Hsin-Ying Lin, Gong-Ru Chen, Yu-Cheng Tu, Wei-Chen Low-power photodetectors based on PVA-modified reduced graphene oxide hybrid solutions |
| title | Low-power photodetectors based on PVA-modified reduced graphene oxide hybrid solutions |
| title_full | Low-power photodetectors based on PVA-modified reduced graphene oxide hybrid solutions |
| title_fullStr | Low-power photodetectors based on PVA-modified reduced graphene oxide hybrid solutions |
| title_full_unstemmed | Low-power photodetectors based on PVA-modified reduced graphene oxide hybrid solutions |
| title_short | Low-power photodetectors based on PVA-modified reduced graphene oxide hybrid solutions |
| title_sort | low power photodetectors based on pva modified reduced graphene oxide hybrid solutions |
| topic | Engineering::Electrical and electronic engineering Low-Power Photodetectors |
| url | https://hdl.handle.net/10356/162109 |
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