Effects of the aspect ratio of ZnO nanorods on the performance of piezoelectric nanogenerators
This paper presents an investigation on the performance of ZnO nanorod (ZNR)-based piezoelectric nanogenerators (PENGs). ZNRs on the ZnO seed layer coated double-sided flexible polyethylene terephthalate (PET) at different molar concentrations (0.01, 0.05 and 0.1 M) were synthesized by controlling t...
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| Format: | Article |
| Language: | English |
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Elsevier
2019-09-01
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| Series: | Journal of Science: Advanced Materials and Devices |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468217919302102 |
| _version_ | 1819077364309557248 |
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| author | Ruaa S. Kammel Raad S. Sabry |
| author_facet | Ruaa S. Kammel Raad S. Sabry |
| author_sort | Ruaa S. Kammel |
| collection | DOAJ |
| description | This paper presents an investigation on the performance of ZnO nanorod (ZNR)-based piezoelectric nanogenerators (PENGs). ZNRs on the ZnO seed layer coated double-sided flexible polyethylene terephthalate (PET) at different molar concentrations (0.01, 0.05 and 0.1 M) were synthesized by controlling the aspect ratio (length/diameter) of ZNRs, that are closely related to the piezoelectric output potential voltage using a simple hydrothermal method. ZNR PENGs were fabricated with an opposite electrode of gold-coated PET (Au/PET), which was placed on both the top and bottom of the ZNR-coated double-sided PET. X-ray diffraction and field emission scanning electron microscopy images revealed that as the molar concentration increased, the orientation of the as-grown ZNRs became non-uniformly distributed along the c-axis and also along with the decreased aspect ratio. At a low molar concentration (0.01 M), the ZNR PENGs exhibited a relatively high output potential voltage (∼4.48 V) under an external pressing mass (500 g). The ZNR samples grown at 0.05 and 0.1 M exhibited a lower piezoelectric voltage 2.48 and 1.84 V, respectively. These results confirmed that ZNR PENGs with a small diameter, long length (i.e. high aspect ratio) and good alignment tend to be bent more easily for the efficient generation of the piezoelectric potential. Keywords: ZnO nanorods, Spin coating method, Hydrothermal method, Energy harvesting, Piezoelectric nanogenerators |
| first_indexed | 2024-12-21T18:56:01Z |
| format | Article |
| id | doaj.art-740ececbff6f43ca91eb84d9a0e9f808 |
| institution | Directory Open Access Journal |
| issn | 2468-2179 |
| language | English |
| last_indexed | 2024-12-21T18:56:01Z |
| publishDate | 2019-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Science: Advanced Materials and Devices |
| spelling | doaj.art-740ececbff6f43ca91eb84d9a0e9f8082022-12-21T18:53:37ZengElsevierJournal of Science: Advanced Materials and Devices2468-21792019-09-0143420424Effects of the aspect ratio of ZnO nanorods on the performance of piezoelectric nanogeneratorsRuaa S. Kammel0Raad S. Sabry1Corresponding author.; Mustansiriyah University, Department of Physics, Baghdad, IraqMustansiriyah University, Department of Physics, Baghdad, IraqThis paper presents an investigation on the performance of ZnO nanorod (ZNR)-based piezoelectric nanogenerators (PENGs). ZNRs on the ZnO seed layer coated double-sided flexible polyethylene terephthalate (PET) at different molar concentrations (0.01, 0.05 and 0.1 M) were synthesized by controlling the aspect ratio (length/diameter) of ZNRs, that are closely related to the piezoelectric output potential voltage using a simple hydrothermal method. ZNR PENGs were fabricated with an opposite electrode of gold-coated PET (Au/PET), which was placed on both the top and bottom of the ZNR-coated double-sided PET. X-ray diffraction and field emission scanning electron microscopy images revealed that as the molar concentration increased, the orientation of the as-grown ZNRs became non-uniformly distributed along the c-axis and also along with the decreased aspect ratio. At a low molar concentration (0.01 M), the ZNR PENGs exhibited a relatively high output potential voltage (∼4.48 V) under an external pressing mass (500 g). The ZNR samples grown at 0.05 and 0.1 M exhibited a lower piezoelectric voltage 2.48 and 1.84 V, respectively. These results confirmed that ZNR PENGs with a small diameter, long length (i.e. high aspect ratio) and good alignment tend to be bent more easily for the efficient generation of the piezoelectric potential. Keywords: ZnO nanorods, Spin coating method, Hydrothermal method, Energy harvesting, Piezoelectric nanogeneratorshttp://www.sciencedirect.com/science/article/pii/S2468217919302102 |
| spellingShingle | Ruaa S. Kammel Raad S. Sabry Effects of the aspect ratio of ZnO nanorods on the performance of piezoelectric nanogenerators Journal of Science: Advanced Materials and Devices |
| title | Effects of the aspect ratio of ZnO nanorods on the performance of piezoelectric nanogenerators |
| title_full | Effects of the aspect ratio of ZnO nanorods on the performance of piezoelectric nanogenerators |
| title_fullStr | Effects of the aspect ratio of ZnO nanorods on the performance of piezoelectric nanogenerators |
| title_full_unstemmed | Effects of the aspect ratio of ZnO nanorods on the performance of piezoelectric nanogenerators |
| title_short | Effects of the aspect ratio of ZnO nanorods on the performance of piezoelectric nanogenerators |
| title_sort | effects of the aspect ratio of zno nanorods on the performance of piezoelectric nanogenerators |
| url | http://www.sciencedirect.com/science/article/pii/S2468217919302102 |
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