Measurement of the Photothermal Conversion Efficiency of CNT Films Utilizing a Raman Spectrum
Because carbon nanotube (CNT) films have high photothermal conversion efficiency (PTCE), they have been widely used in bolometric and photothermoelectric photodetectors, seawater desalination, and cancer therapy. Here, we present a simple, quick, and non-destructive method to measure the PTCE of CNT...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/7/1101 |
| _version_ | 1827622913410334720 |
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| author | Yu Liu Zhicheng Lin Pengfei Wang Feng Huang Jia-Lin Sun |
| author_facet | Yu Liu Zhicheng Lin Pengfei Wang Feng Huang Jia-Lin Sun |
| author_sort | Yu Liu |
| collection | DOAJ |
| description | Because carbon nanotube (CNT) films have high photothermal conversion efficiency (PTCE), they have been widely used in bolometric and photothermoelectric photodetectors, seawater desalination, and cancer therapy. Here, we present a simple, quick, and non-destructive method to measure the PTCE of CNT films. According to the linear relationship between the Raman shift of the G<sup>+</sup> peak and the temperature of a CNT, the offset of the G<sup>+</sup> peak under varying excitation light power can characterize the changed temperature. Combining the simulation of the temperature distribution, the final value of the PTCE can be obtained. Finally, a CNT film with a high PTCE was chosen to be fabricated as a bolometric photodetector; a quite high responsivity (2 A W<sup>−1</sup> at 532 nm) of this device demonstrated the effectiveness of our method. |
| first_indexed | 2024-03-09T11:34:21Z |
| format | Article |
| id | doaj.art-37f556611e8243b6a8637cb3bd7a64dc |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T11:34:21Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-37f556611e8243b6a8637cb3bd7a64dc2023-11-30T23:44:27ZengMDPI AGNanomaterials2079-49912022-03-01127110110.3390/nano12071101Measurement of the Photothermal Conversion Efficiency of CNT Films Utilizing a Raman SpectrumYu Liu0Zhicheng Lin1Pengfei Wang2Feng Huang3Jia-Lin Sun4College of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, ChinaCollege of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, ChinaCollege of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, ChinaCollege of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, ChinaState Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, ChinaBecause carbon nanotube (CNT) films have high photothermal conversion efficiency (PTCE), they have been widely used in bolometric and photothermoelectric photodetectors, seawater desalination, and cancer therapy. Here, we present a simple, quick, and non-destructive method to measure the PTCE of CNT films. According to the linear relationship between the Raman shift of the G<sup>+</sup> peak and the temperature of a CNT, the offset of the G<sup>+</sup> peak under varying excitation light power can characterize the changed temperature. Combining the simulation of the temperature distribution, the final value of the PTCE can be obtained. Finally, a CNT film with a high PTCE was chosen to be fabricated as a bolometric photodetector; a quite high responsivity (2 A W<sup>−1</sup> at 532 nm) of this device demonstrated the effectiveness of our method.https://www.mdpi.com/2079-4991/12/7/1101CNT filmRaman shiftphotothermal conversion efficiency |
| spellingShingle | Yu Liu Zhicheng Lin Pengfei Wang Feng Huang Jia-Lin Sun Measurement of the Photothermal Conversion Efficiency of CNT Films Utilizing a Raman Spectrum Nanomaterials CNT film Raman shift photothermal conversion efficiency |
| title | Measurement of the Photothermal Conversion Efficiency of CNT Films Utilizing a Raman Spectrum |
| title_full | Measurement of the Photothermal Conversion Efficiency of CNT Films Utilizing a Raman Spectrum |
| title_fullStr | Measurement of the Photothermal Conversion Efficiency of CNT Films Utilizing a Raman Spectrum |
| title_full_unstemmed | Measurement of the Photothermal Conversion Efficiency of CNT Films Utilizing a Raman Spectrum |
| title_short | Measurement of the Photothermal Conversion Efficiency of CNT Films Utilizing a Raman Spectrum |
| title_sort | measurement of the photothermal conversion efficiency of cnt films utilizing a raman spectrum |
| topic | CNT film Raman shift photothermal conversion efficiency |
| url | https://www.mdpi.com/2079-4991/12/7/1101 |
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