Color tunable light-emitting diodes based on p+-Si/p-CuAlO2 /n-ZnO nanorod array heterojunctions
Wide-range color tuning from red to blue was achieved in phosphor-free p+-Si/p-CuAlO2/n-ZnO nanorod light-emitting diodes at room temperature. CuAlO2 films were deposited on p+-Si substrates by sputtering followed by annealing. ZnO nanorods were further grown on the annealed p+-Si/p-CuAlO2 substrate...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2011
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| Online Access: | https://hdl.handle.net/10356/96213 http://hdl.handle.net/10220/6866 |
| _version_ | 1826114561796734976 |
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| author | Ling, Bo Zhao, Jun Liang Sun, Xiaowei Tan, Swee Tiam Kyaw, Aung Ko Ko Divayana, Yoga Dong, Zhili |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Ling, Bo Zhao, Jun Liang Sun, Xiaowei Tan, Swee Tiam Kyaw, Aung Ko Ko Divayana, Yoga Dong, Zhili |
| author_sort | Ling, Bo |
| collection | NTU |
| description | Wide-range color tuning from red to blue was achieved in phosphor-free p+-Si/p-CuAlO2/n-ZnO nanorod light-emitting diodes at room temperature. CuAlO2 films were deposited on p+-Si substrates by sputtering followed by annealing. ZnO nanorods were further grown on the annealed p+-Si/p-CuAlO2 substrates by vapor phase transport. The color of the p-CuAlO2/n-ZnO nanorod array heterojunction electroluminescence depended on the annealing temperature of the CuAlO2 film. With the increase of the annealing temperature from 900 to 1050 °C, the emission showed a blueshift under the same forward bias. The origin of the blueshift is related to the amount of Cu concentration diffused into ZnO. |
| first_indexed | 2024-10-01T03:41:08Z |
| format | Journal Article |
| id | ntu-10356/96213 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:41:08Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | ntu-10356/962132023-07-14T15:53:08Z Color tunable light-emitting diodes based on p+-Si/p-CuAlO2 /n-ZnO nanorod array heterojunctions Ling, Bo Zhao, Jun Liang Sun, Xiaowei Tan, Swee Tiam Kyaw, Aung Ko Ko Divayana, Yoga Dong, Zhili School of Materials Science & Engineering DRNTU::Engineering::Materials::Photonics and optoelectronics materials Wide-range color tuning from red to blue was achieved in phosphor-free p+-Si/p-CuAlO2/n-ZnO nanorod light-emitting diodes at room temperature. CuAlO2 films were deposited on p+-Si substrates by sputtering followed by annealing. ZnO nanorods were further grown on the annealed p+-Si/p-CuAlO2 substrates by vapor phase transport. The color of the p-CuAlO2/n-ZnO nanorod array heterojunction electroluminescence depended on the annealing temperature of the CuAlO2 film. With the increase of the annealing temperature from 900 to 1050 °C, the emission showed a blueshift under the same forward bias. The origin of the blueshift is related to the amount of Cu concentration diffused into ZnO. Published version 2011-07-06T01:52:17Z 2019-12-06T19:27:18Z 2011-07-06T01:52:17Z 2019-12-06T19:27:18Z 2010 2010 Journal Article Ling, B., Zhao, J. L., Sun, X., Tan, S. T., Kyaw, A. K. K., Divayana, Y. & et al.(2010). Color tunable light-emitting diodes based on p+-Si/p-CuAlO2 /n-ZnO nanorod array heterojunctions. Applied Physics Letters, 97. https://hdl.handle.net/10356/96213 http://hdl.handle.net/10220/6866 10.1063/1.3459963 en Applied physics letters © 2010 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at: [DOI: http://dx.doi.org/10.1063/1.3459963]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
| spellingShingle | DRNTU::Engineering::Materials::Photonics and optoelectronics materials Ling, Bo Zhao, Jun Liang Sun, Xiaowei Tan, Swee Tiam Kyaw, Aung Ko Ko Divayana, Yoga Dong, Zhili Color tunable light-emitting diodes based on p+-Si/p-CuAlO2 /n-ZnO nanorod array heterojunctions |
| title | Color tunable light-emitting diodes based on p+-Si/p-CuAlO2 /n-ZnO nanorod array heterojunctions |
| title_full | Color tunable light-emitting diodes based on p+-Si/p-CuAlO2 /n-ZnO nanorod array heterojunctions |
| title_fullStr | Color tunable light-emitting diodes based on p+-Si/p-CuAlO2 /n-ZnO nanorod array heterojunctions |
| title_full_unstemmed | Color tunable light-emitting diodes based on p+-Si/p-CuAlO2 /n-ZnO nanorod array heterojunctions |
| title_short | Color tunable light-emitting diodes based on p+-Si/p-CuAlO2 /n-ZnO nanorod array heterojunctions |
| title_sort | color tunable light emitting diodes based on p si p cualo2 n zno nanorod array heterojunctions |
| topic | DRNTU::Engineering::Materials::Photonics and optoelectronics materials |
| url | https://hdl.handle.net/10356/96213 http://hdl.handle.net/10220/6866 |
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