Photoelectrochemical Performance of Smooth TiO2 Nanotube Arrays: Effect of Anodization Temperature and Cleaning Methods
The formation of self-organized titanium dioxide (TiO2) nanotube arrays without bundling or clustering is essential for their high efficiency in photoelectrochemical (PEC) application. The present paper reports on the use of different temperatures to control the specific architecture of nanotube arr...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2012/356943 |
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| author | Chin Wei Lai Srimala Sreekantan |
| author_facet | Chin Wei Lai Srimala Sreekantan |
| author_sort | Chin Wei Lai |
| collection | DOAJ |
| description | The formation of self-organized titanium dioxide (TiO2) nanotube arrays without bundling or clustering is essential for their high efficiency in photoelectrochemical (PEC) application. The present paper reports on the use of different temperatures to control the specific architecture of nanotube arrays and effective cleaning techniques to ensure the formation of clean TiO2 nanotube surface. The wall thickness of nanotube arrays could be controlled from 12.5 nm to 37.5 nm through different anodization temperature ranging from 10°C to 80°C. Furthermore, ultrasonic cleaning combined with acetone showed the high-ordered TiO2 nanotube arrays without morphological disorder, bundling, and microcrack problems. Based on the results obtained, a higher PEC response of 1 mA/cm2 and a photoconversion efficiency of 1.3% could be achieved using a wall thickness of 12.5 nm and defect-free TiO2 nanotube arrays for low charge transfer resistance. |
| format | Article |
| id | doaj-art-95cc96bf78be4b46857e61b5d3ff1b56 |
| institution | OA Journals |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-95cc96bf78be4b46857e61b5d3ff1b562025-08-20T02:10:06ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2012-01-01201210.1155/2012/356943356943Photoelectrochemical Performance of Smooth TiO2 Nanotube Arrays: Effect of Anodization Temperature and Cleaning MethodsChin Wei Lai0Srimala Sreekantan1School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, Seberang Perai Selatan, Pulau Pinang, 14300 Nibong Tebal, MalaysiaSchool of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, Seberang Perai Selatan, Pulau Pinang, 14300 Nibong Tebal, MalaysiaThe formation of self-organized titanium dioxide (TiO2) nanotube arrays without bundling or clustering is essential for their high efficiency in photoelectrochemical (PEC) application. The present paper reports on the use of different temperatures to control the specific architecture of nanotube arrays and effective cleaning techniques to ensure the formation of clean TiO2 nanotube surface. The wall thickness of nanotube arrays could be controlled from 12.5 nm to 37.5 nm through different anodization temperature ranging from 10°C to 80°C. Furthermore, ultrasonic cleaning combined with acetone showed the high-ordered TiO2 nanotube arrays without morphological disorder, bundling, and microcrack problems. Based on the results obtained, a higher PEC response of 1 mA/cm2 and a photoconversion efficiency of 1.3% could be achieved using a wall thickness of 12.5 nm and defect-free TiO2 nanotube arrays for low charge transfer resistance.http://dx.doi.org/10.1155/2012/356943 |
| spellingShingle | Chin Wei Lai Srimala Sreekantan Photoelectrochemical Performance of Smooth TiO2 Nanotube Arrays: Effect of Anodization Temperature and Cleaning Methods International Journal of Photoenergy |
| title | Photoelectrochemical Performance of Smooth TiO2 Nanotube Arrays: Effect of Anodization Temperature and Cleaning Methods |
| title_full | Photoelectrochemical Performance of Smooth TiO2 Nanotube Arrays: Effect of Anodization Temperature and Cleaning Methods |
| title_fullStr | Photoelectrochemical Performance of Smooth TiO2 Nanotube Arrays: Effect of Anodization Temperature and Cleaning Methods |
| title_full_unstemmed | Photoelectrochemical Performance of Smooth TiO2 Nanotube Arrays: Effect of Anodization Temperature and Cleaning Methods |
| title_short | Photoelectrochemical Performance of Smooth TiO2 Nanotube Arrays: Effect of Anodization Temperature and Cleaning Methods |
| title_sort | photoelectrochemical performance of smooth tio2 nanotube arrays effect of anodization temperature and cleaning methods |
| url | http://dx.doi.org/10.1155/2012/356943 |
| work_keys_str_mv | AT chinweilai photoelectrochemicalperformanceofsmoothtio2nanotubearrayseffectofanodizationtemperatureandcleaningmethods AT srimalasreekantan photoelectrochemicalperformanceofsmoothtio2nanotubearrayseffectofanodizationtemperatureandcleaningmethods |