Dielectric relaxation in AC powder electroluminescent devices
The dielectric properties of AC powder electroluminescent devices were measured and analyzed using complex impedance spectroscopy to determine the relaxation processes occurring within the devices. The relaxation processes identified were ascribed to the electrode polarization caused by ion accumula...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2016
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/84544 http://hdl.handle.net/10220/41880 |
| _version_ | 1826117823431180288 |
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| author | Zhang, Shuai Su, Haibin Tan, Chuan Seng Wong, Terence Kin Shun Teo, Ronnie Jin Wah |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Zhang, Shuai Su, Haibin Tan, Chuan Seng Wong, Terence Kin Shun Teo, Ronnie Jin Wah |
| author_sort | Zhang, Shuai |
| collection | NTU |
| description | The dielectric properties of AC powder electroluminescent devices were measured and analyzed using complex impedance spectroscopy to determine the relaxation processes occurring within the devices. The relaxation processes identified were ascribed to the electrode polarization caused by ion accumulation at the electrode/resin interfaces, the Maxwell-Wagner-Sillars effects at the (ZnS or BaTiO3) particle/resin interfaces, and the dipolar reorientation of polymer chains in the resin matrix. Each relaxation process was represented by its corresponding equivalent circuit component. Space charge polarization at the electrodes were represented by a Warburg element, a resistor, and a constant phase element. The resin matrix, ZnS/resin and BaTiO3/resin interfaces could each be modeled by a resistor and a capacitor in parallel. The simulated equivalent circuits for three different printed structures showed good fitting with their experimental impedance results. |
| first_indexed | 2024-10-01T04:33:39Z |
| format | Journal Article |
| id | ntu-10356/84544 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:33:39Z |
| publishDate | 2016 |
| record_format | dspace |
| spelling | ntu-10356/845442020-06-01T10:01:49Z Dielectric relaxation in AC powder electroluminescent devices Zhang, Shuai Su, Haibin Tan, Chuan Seng Wong, Terence Kin Shun Teo, Ronnie Jin Wah School of Electrical and Electronic Engineering School of Materials Science & Engineering A*STAR SIMTech AC powder electroluminescent devices dielectric properties The dielectric properties of AC powder electroluminescent devices were measured and analyzed using complex impedance spectroscopy to determine the relaxation processes occurring within the devices. The relaxation processes identified were ascribed to the electrode polarization caused by ion accumulation at the electrode/resin interfaces, the Maxwell-Wagner-Sillars effects at the (ZnS or BaTiO3) particle/resin interfaces, and the dipolar reorientation of polymer chains in the resin matrix. Each relaxation process was represented by its corresponding equivalent circuit component. Space charge polarization at the electrodes were represented by a Warburg element, a resistor, and a constant phase element. The resin matrix, ZnS/resin and BaTiO3/resin interfaces could each be modeled by a resistor and a capacitor in parallel. The simulated equivalent circuits for three different printed structures showed good fitting with their experimental impedance results. Accepted version 2016-12-19T04:27:39Z 2019-12-06T15:46:56Z 2016-12-19T04:27:39Z 2019-12-06T15:46:56Z 2016 Journal Article Zhang, S., Su, H., Tan, C. S., Wong, T. K. S., & Teo, R. J. W. (2017). Dielectric relaxation in AC powder electroluminescent devices. Solid State Communications, 250, 53-56. 0038-1098 https://hdl.handle.net/10356/84544 http://hdl.handle.net/10220/41880 10.1016/j.ssc.2016.11.010 en Solid State Communications © 2016 Elsevier Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Solid State Communications, Elsevier Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.ssc.2016.11.010]. 11 p. application/pdf |
| spellingShingle | AC powder electroluminescent devices dielectric properties Zhang, Shuai Su, Haibin Tan, Chuan Seng Wong, Terence Kin Shun Teo, Ronnie Jin Wah Dielectric relaxation in AC powder electroluminescent devices |
| title | Dielectric relaxation in AC powder electroluminescent devices |
| title_full | Dielectric relaxation in AC powder electroluminescent devices |
| title_fullStr | Dielectric relaxation in AC powder electroluminescent devices |
| title_full_unstemmed | Dielectric relaxation in AC powder electroluminescent devices |
| title_short | Dielectric relaxation in AC powder electroluminescent devices |
| title_sort | dielectric relaxation in ac powder electroluminescent devices |
| topic | AC powder electroluminescent devices dielectric properties |
| url | https://hdl.handle.net/10356/84544 http://hdl.handle.net/10220/41880 |
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