Robust water repellent ZnO nanorod array by Swift Heavy Ion Irradiation: Effect of Electronic Excitation Induced Local Chemical State Modification
Abstract Tailoring the surface properties by varying the chemistry and roughness could be of interest for self-cleaning applications. We demonstrate the transformation of hydrophobic ZnO Nano rod (NR) array into superhydrophobic nature by changing the local chemical state and without altering the su...
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doaj-ad293a1765db47e2afce3ab7e718845d2020-12-08T00:20:24ZengNature Publishing GroupScientific Reports2045-23222017-06-017111010.1038/s41598-017-03313-8Robust water repellent ZnO nanorod array by Swift Heavy Ion Irradiation: Effect of Electronic Excitation Induced Local Chemical State ModificationKugalur Shanmugam Ranjith0Lalitha Raveendran Nivedita1Kandasami Asokan2Satheesh Krishnamurthy3Ramanathaswamy Pandian4Mohammed Kamruddin5Devesh Kumar Avasthi6Ramasamy Thangavelu Rajendra Kumar7Advanced Materials and Devices Laboratory, Department of Physics, Bharathiar UniversityAdvanced Materials and Devices Laboratory, Department of Physics, Bharathiar UniversityMaterials Science Division, Inter University Accelerator CentreSchool of Engineering and Innovation, The Open UniversitySurface and Nanoscience Division, Materials Science Group, Indira Gandhi Centre for Atomic Research (IGCAR)Surface and Nanoscience Division, Materials Science Group, Indira Gandhi Centre for Atomic Research (IGCAR)Materials Science Division, Inter University Accelerator CentreAdvanced Materials and Devices Laboratory, Department of Physics, Bharathiar UniversityAbstract Tailoring the surface properties by varying the chemistry and roughness could be of interest for self-cleaning applications. We demonstrate the transformation of hydrophobic ZnO Nano rod (NR) array into superhydrophobic nature by changing the local chemical state and without altering the surface roughness by swift heavy ion (SHI) irradiation. The aligned ZnO NR arrays were irradiated using 150 MeV Ag ions with different fluences from 5E10 to 3E12 ions/cm2. The observed static water contact angles of ZnO NRs samples were 103° ± 3°, 152° ± 4°,161° ± 3°, 164° ± 2°, 167° ± 2°,154 ± 3° and 151° ± 2° for the pristine, ion fluencies of 1E11, 3E11, 5E11, 7E11, 1E12 and 3E12 ions cm−2, respectively. The change in local surface chemistry via formation of surface oxygen related defects due to electronic excitations induced by ion irradiation determine the water dewetting properties. It is found that surface oxygen related defects could be tuned by varying the fluence of the SHIs. Durability tests show that the SHI induced surface oxygen-deficient ZnO NRs have the stable superhydrophobic behavior for more than a year.https://doi.org/10.1038/s41598-017-03313-8 |
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DOAJ |
language |
English |
format |
Article |
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DOAJ |
author |
Kugalur Shanmugam Ranjith Lalitha Raveendran Nivedita Kandasami Asokan Satheesh Krishnamurthy Ramanathaswamy Pandian Mohammed Kamruddin Devesh Kumar Avasthi Ramasamy Thangavelu Rajendra Kumar |
spellingShingle |
Kugalur Shanmugam Ranjith Lalitha Raveendran Nivedita Kandasami Asokan Satheesh Krishnamurthy Ramanathaswamy Pandian Mohammed Kamruddin Devesh Kumar Avasthi Ramasamy Thangavelu Rajendra Kumar Robust water repellent ZnO nanorod array by Swift Heavy Ion Irradiation: Effect of Electronic Excitation Induced Local Chemical State Modification Scientific Reports |
author_facet |
Kugalur Shanmugam Ranjith Lalitha Raveendran Nivedita Kandasami Asokan Satheesh Krishnamurthy Ramanathaswamy Pandian Mohammed Kamruddin Devesh Kumar Avasthi Ramasamy Thangavelu Rajendra Kumar |
author_sort |
Kugalur Shanmugam Ranjith |
title |
Robust water repellent ZnO nanorod array by Swift Heavy Ion Irradiation: Effect of Electronic Excitation Induced Local Chemical State Modification |
title_short |
Robust water repellent ZnO nanorod array by Swift Heavy Ion Irradiation: Effect of Electronic Excitation Induced Local Chemical State Modification |
title_full |
Robust water repellent ZnO nanorod array by Swift Heavy Ion Irradiation: Effect of Electronic Excitation Induced Local Chemical State Modification |
title_fullStr |
Robust water repellent ZnO nanorod array by Swift Heavy Ion Irradiation: Effect of Electronic Excitation Induced Local Chemical State Modification |
title_full_unstemmed |
Robust water repellent ZnO nanorod array by Swift Heavy Ion Irradiation: Effect of Electronic Excitation Induced Local Chemical State Modification |
title_sort |
robust water repellent zno nanorod array by swift heavy ion irradiation: effect of electronic excitation induced local chemical state modification |
publisher |
Nature Publishing Group |
series |
Scientific Reports |
issn |
2045-2322 |
publishDate |
2017-06-01 |
description |
Abstract Tailoring the surface properties by varying the chemistry and roughness could be of interest for self-cleaning applications. We demonstrate the transformation of hydrophobic ZnO Nano rod (NR) array into superhydrophobic nature by changing the local chemical state and without altering the surface roughness by swift heavy ion (SHI) irradiation. The aligned ZnO NR arrays were irradiated using 150 MeV Ag ions with different fluences from 5E10 to 3E12 ions/cm2. The observed static water contact angles of ZnO NRs samples were 103° ± 3°, 152° ± 4°,161° ± 3°, 164° ± 2°, 167° ± 2°,154 ± 3° and 151° ± 2° for the pristine, ion fluencies of 1E11, 3E11, 5E11, 7E11, 1E12 and 3E12 ions cm−2, respectively. The change in local surface chemistry via formation of surface oxygen related defects due to electronic excitations induced by ion irradiation determine the water dewetting properties. It is found that surface oxygen related defects could be tuned by varying the fluence of the SHIs. Durability tests show that the SHI induced surface oxygen-deficient ZnO NRs have the stable superhydrophobic behavior for more than a year. |
url |
https://doi.org/10.1038/s41598-017-03313-8 |
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