Enhancement of surface potential buildup and decay of tris(8-quinolinato)aluminum film deposited on ultraviolet/ozone-treated gold electrodes
The enhancement of the surface potential of tris(8-quinolinato)aluminum (Alq3) film deposited on ultraviolet (UV)/ozonetreated gold electrodes was confirmed by surface potential measurement, and the ordering of molecular dipoles was suggested. The enhanced surface potential of the order of 10 V deca...
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| Format: | Article |
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IOP Publishing
2005
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| author | Kajimoto, N. Muhamad, M.R. Rahman, Saadah Abdul Manaka, T. Iwamoto, M. |
| author_facet | Kajimoto, N. Muhamad, M.R. Rahman, Saadah Abdul Manaka, T. Iwamoto, M. |
| author_sort | Kajimoto, N. |
| collection | UM |
| description | The enhancement of the surface potential of tris(8-quinolinato)aluminum (Alq3) film deposited on ultraviolet (UV)/ozonetreated gold electrodes was confirmed by surface potential measurement, and the ordering of molecular dipoles was suggested. The enhanced surface potential of the order of 10 V decayed rapidly by photo irradiation, due to molecular dipole disordering, but a surface potential of 100-400mV remained. Interestingly, this remaining surface potential of Alq3 on the UV/ozonetreated gold electrode was always smaller than that of Alq3 film on an untreated gold electrode. It was concluded that the UV/ozone treatment is effective in decreasing the density of surface states at the Alq3-metal interface as well as for the enhancement of molecular dipole ordering. |
| first_indexed | 2024-03-06T05:18:33Z |
| format | Article |
| id | um.eprints-7352 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:18:33Z |
| publishDate | 2005 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | um.eprints-73522019-03-22T01:11:44Z http://eprints.um.edu.my/7352/ Enhancement of surface potential buildup and decay of tris(8-quinolinato)aluminum film deposited on ultraviolet/ozone-treated gold electrodes Kajimoto, N. Muhamad, M.R. Rahman, Saadah Abdul Manaka, T. Iwamoto, M. QC Physics The enhancement of the surface potential of tris(8-quinolinato)aluminum (Alq3) film deposited on ultraviolet (UV)/ozonetreated gold electrodes was confirmed by surface potential measurement, and the ordering of molecular dipoles was suggested. The enhanced surface potential of the order of 10 V decayed rapidly by photo irradiation, due to molecular dipole disordering, but a surface potential of 100-400mV remained. Interestingly, this remaining surface potential of Alq3 on the UV/ozonetreated gold electrode was always smaller than that of Alq3 film on an untreated gold electrode. It was concluded that the UV/ozone treatment is effective in decreasing the density of surface states at the Alq3-metal interface as well as for the enhancement of molecular dipole ordering. IOP Publishing 2005 Article PeerReviewed Kajimoto, N. and Muhamad, M.R. and Rahman, Saadah Abdul and Manaka, T. and Iwamoto, M. (2005) Enhancement of surface potential buildup and decay of tris(8-quinolinato)aluminum film deposited on ultraviolet/ozone-treated gold electrodes. Japanese Journal of Applied Physics, 44 (2). pp. 1091-1094. ISSN 0021-4922, DOI https://doi.org/10.1143/jjap.44.1091 <https://doi.org/10.1143/jjap.44.1091>. 10.1143/jjap.44.1091 |
| spellingShingle | QC Physics Kajimoto, N. Muhamad, M.R. Rahman, Saadah Abdul Manaka, T. Iwamoto, M. Enhancement of surface potential buildup and decay of tris(8-quinolinato)aluminum film deposited on ultraviolet/ozone-treated gold electrodes |
| title | Enhancement of surface potential buildup and decay of tris(8-quinolinato)aluminum film deposited on ultraviolet/ozone-treated gold electrodes |
| title_full | Enhancement of surface potential buildup and decay of tris(8-quinolinato)aluminum film deposited on ultraviolet/ozone-treated gold electrodes |
| title_fullStr | Enhancement of surface potential buildup and decay of tris(8-quinolinato)aluminum film deposited on ultraviolet/ozone-treated gold electrodes |
| title_full_unstemmed | Enhancement of surface potential buildup and decay of tris(8-quinolinato)aluminum film deposited on ultraviolet/ozone-treated gold electrodes |
| title_short | Enhancement of surface potential buildup and decay of tris(8-quinolinato)aluminum film deposited on ultraviolet/ozone-treated gold electrodes |
| title_sort | enhancement of surface potential buildup and decay of tris 8 quinolinato aluminum film deposited on ultraviolet ozone treated gold electrodes |
| topic | QC Physics |
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