TiO2 Nanotube Arrays: Fabricated by Soft–Hard Template and the Grain Size Dependence of Field Emission Performance
Abstract Highly ordered TiO2 nanotube (TNT) arrays were successfully synthesized by the combination of soft and hard templates. In the fabrication of them, anodic aluminum oxide membranes act as the hard template while the self-assembly of polystyrene-block-poly(ethylene oxide) (PS-b-PEO) complexed...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-11-01
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| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s11671-017-2361-9 |
| _version_ | 1797707464118894592 |
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| author | Xuxin Yang Pei Ma Hui Qi Jingxin Zhao Qiang Wu Jichun You Yongjin Li |
| author_facet | Xuxin Yang Pei Ma Hui Qi Jingxin Zhao Qiang Wu Jichun You Yongjin Li |
| author_sort | Xuxin Yang |
| collection | DOAJ |
| description | Abstract Highly ordered TiO2 nanotube (TNT) arrays were successfully synthesized by the combination of soft and hard templates. In the fabrication of them, anodic aluminum oxide membranes act as the hard template while the self-assembly of polystyrene-block-poly(ethylene oxide) (PS-b-PEO) complexed with titanium-tetraisopropoxide (TTIP, the precursor of TiO2) provides the soft template to control the grain size of TiO2 nanotubes. Our results indicate that the field emission (FE) performance depends crucially on the grain size of the calcinated TiO2 which is dominated by the PS-b-PEO and its blending ratio with TTIP. The optimized sample (with the TTIP/PEO ratio of 3.87) exhibits excellent FE performances involving both a low turn-on field of 3.3 V/um and a high current density of 7.6 mA/cm2 at 12.7 V/μm. The enhanced FE properties can be attributed to the low effective work function (1.2 eV) resulted from the smaller grain size of TiO2. |
| first_indexed | 2024-03-12T06:06:45Z |
| format | Article |
| id | doaj.art-6e45ce2284f347e980dec4722f068388 |
| institution | Directory Open Access Journal |
| issn | 1931-7573 1556-276X |
| language | English |
| last_indexed | 2024-03-12T06:06:45Z |
| publishDate | 2017-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-6e45ce2284f347e980dec4722f0683882023-09-03T03:31:33ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2017-11-011211510.1186/s11671-017-2361-9TiO2 Nanotube Arrays: Fabricated by Soft–Hard Template and the Grain Size Dependence of Field Emission PerformanceXuxin Yang0Pei Ma1Hui Qi2Jingxin Zhao3Qiang Wu4Jichun You5Yongjin Li6Hangzhou Normal UniversityHangzhou Normal UniversityThe Second Hospital of Jilin UniversityHangzhou Normal UniversityKey Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing UniversityHangzhou Normal UniversityHangzhou Normal UniversityAbstract Highly ordered TiO2 nanotube (TNT) arrays were successfully synthesized by the combination of soft and hard templates. In the fabrication of them, anodic aluminum oxide membranes act as the hard template while the self-assembly of polystyrene-block-poly(ethylene oxide) (PS-b-PEO) complexed with titanium-tetraisopropoxide (TTIP, the precursor of TiO2) provides the soft template to control the grain size of TiO2 nanotubes. Our results indicate that the field emission (FE) performance depends crucially on the grain size of the calcinated TiO2 which is dominated by the PS-b-PEO and its blending ratio with TTIP. The optimized sample (with the TTIP/PEO ratio of 3.87) exhibits excellent FE performances involving both a low turn-on field of 3.3 V/um and a high current density of 7.6 mA/cm2 at 12.7 V/μm. The enhanced FE properties can be attributed to the low effective work function (1.2 eV) resulted from the smaller grain size of TiO2.http://link.springer.com/article/10.1186/s11671-017-2361-9Nanocrystalline materialsPolymersSurfacesMicrostructure |
| spellingShingle | Xuxin Yang Pei Ma Hui Qi Jingxin Zhao Qiang Wu Jichun You Yongjin Li TiO2 Nanotube Arrays: Fabricated by Soft–Hard Template and the Grain Size Dependence of Field Emission Performance Nanoscale Research Letters Nanocrystalline materials Polymers Surfaces Microstructure |
| title | TiO2 Nanotube Arrays: Fabricated by Soft–Hard Template and the Grain Size Dependence of Field Emission Performance |
| title_full | TiO2 Nanotube Arrays: Fabricated by Soft–Hard Template and the Grain Size Dependence of Field Emission Performance |
| title_fullStr | TiO2 Nanotube Arrays: Fabricated by Soft–Hard Template and the Grain Size Dependence of Field Emission Performance |
| title_full_unstemmed | TiO2 Nanotube Arrays: Fabricated by Soft–Hard Template and the Grain Size Dependence of Field Emission Performance |
| title_short | TiO2 Nanotube Arrays: Fabricated by Soft–Hard Template and the Grain Size Dependence of Field Emission Performance |
| title_sort | tio2 nanotube arrays fabricated by soft hard template and the grain size dependence of field emission performance |
| topic | Nanocrystalline materials Polymers Surfaces Microstructure |
| url | http://link.springer.com/article/10.1186/s11671-017-2361-9 |
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