Ordered array of gold semishells on TiO2 spheres : an ultrasensitive and recyclable SERS substrate
Ordered array of Au semishells on TiO2 spheres with controlled size are prepared by combining the nanosphere self-assembly and atomic layer deposition (ALD). This ordered 2-D structure with designed array of metal nanogaps can be used as an ultrasensitive surface-enhanced Raman scattering (SERS) sub...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/96571 http://hdl.handle.net/10220/10274 |
| _version_ | 1811683023912960000 |
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| author | Li, Xianglin Hu, Hailong Li, Dehui Shen, Zexiang Xiong, Qihua Li, Shuzhou Fan, Hong Jin |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Li, Xianglin Hu, Hailong Li, Dehui Shen, Zexiang Xiong, Qihua Li, Shuzhou Fan, Hong Jin |
| author_sort | Li, Xianglin |
| collection | NTU |
| description | Ordered array of Au semishells on TiO2 spheres with controlled size are prepared by combining the nanosphere self-assembly and atomic layer deposition (ALD). This ordered 2-D structure with designed array of metal nanogaps can be used as an ultrasensitive surface-enhanced Raman scattering (SERS) substrate with high reproducibility and stability. More importantly, the SERS substrates are recyclable, as enabled by their self-cleaning function due to the TiO2 photocatalytic degradation of the target molecules. The high SERS sensitivity and recyclability are demonstrated by the detection of Rhodamine 6G (R6G) and brilliant cresyl blue (BCB) molecules. As both the nanosphere lithography and ALD are scalable processes, such 2-D ordered substrates may find applications in chemical sensing. |
| first_indexed | 2024-10-01T04:06:09Z |
| format | Journal Article |
| id | ntu-10356/96571 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:06:09Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/965712020-06-01T10:21:14Z Ordered array of gold semishells on TiO2 spheres : an ultrasensitive and recyclable SERS substrate Li, Xianglin Hu, Hailong Li, Dehui Shen, Zexiang Xiong, Qihua Li, Shuzhou Fan, Hong Jin School of Materials Science & Engineering School of Physical and Mathematical Sciences Ordered array of Au semishells on TiO2 spheres with controlled size are prepared by combining the nanosphere self-assembly and atomic layer deposition (ALD). This ordered 2-D structure with designed array of metal nanogaps can be used as an ultrasensitive surface-enhanced Raman scattering (SERS) substrate with high reproducibility and stability. More importantly, the SERS substrates are recyclable, as enabled by their self-cleaning function due to the TiO2 photocatalytic degradation of the target molecules. The high SERS sensitivity and recyclability are demonstrated by the detection of Rhodamine 6G (R6G) and brilliant cresyl blue (BCB) molecules. As both the nanosphere lithography and ALD are scalable processes, such 2-D ordered substrates may find applications in chemical sensing. 2013-06-12T07:23:21Z 2019-12-06T19:32:39Z 2013-06-12T07:23:21Z 2019-12-06T19:32:39Z 2012 2012 Journal Article Li, X., Hu, H., Li, D., Shen, Z., Xiong, Q., Li, S., et al. (2012). Ordered Array of Gold Semishells on TiO2 Spheres: An Ultrasensitive and Recyclable SERS Substrate. ACS Applied Materials & Interfaces, 4(4), 2180-2185. 1944-8244 https://hdl.handle.net/10356/96571 http://hdl.handle.net/10220/10274 10.1021/am300189n en ACS applied materials & interfaces © 2012 American Chemical Society. |
| spellingShingle | Li, Xianglin Hu, Hailong Li, Dehui Shen, Zexiang Xiong, Qihua Li, Shuzhou Fan, Hong Jin Ordered array of gold semishells on TiO2 spheres : an ultrasensitive and recyclable SERS substrate |
| title | Ordered array of gold semishells on TiO2 spheres : an ultrasensitive and recyclable SERS substrate |
| title_full | Ordered array of gold semishells on TiO2 spheres : an ultrasensitive and recyclable SERS substrate |
| title_fullStr | Ordered array of gold semishells on TiO2 spheres : an ultrasensitive and recyclable SERS substrate |
| title_full_unstemmed | Ordered array of gold semishells on TiO2 spheres : an ultrasensitive and recyclable SERS substrate |
| title_short | Ordered array of gold semishells on TiO2 spheres : an ultrasensitive and recyclable SERS substrate |
| title_sort | ordered array of gold semishells on tio2 spheres an ultrasensitive and recyclable sers substrate |
| url | https://hdl.handle.net/10356/96571 http://hdl.handle.net/10220/10274 |
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