Abstract
We report a detailed experimental and modeling study of efficiency for dielectric barrier discharge excited lamp containing mixtures of xenon and iodine. A survey of performance as functions of pressure, iodine partial pressure and excitation parameters indicates that the maximum efficiency of conversion from electrical output to UV (253nm) is in the range 1-2% in contrast to previous reports of efficiency > 20% [eg. Zhang and Boyd, J. Appl. Phys 84, 1174 (1998)]. The results are in good agreement with a 1-D rate-equation model of the discharge kinetics, which suggests that direct quenching of the upper states of the Xel* (B-X) transition (253nm) by I₂ limits the output efficiency.
| Original language | English |
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| Title of host publication | Light sources 2007 |
| Subtitle of host publication | proceedings of the 11th International Symposium on the Science and Technology of Light Sources, May 20th - 24th, 2007, Shanghai, China |
| Editors | M.Q. Liu, R. Devonshire |
| Place of Publication | Sheffield, UK |
| Publisher | FAST-LS Ltd |
| Pages | 271-280 |
| Number of pages | 10 |
| ISBN (Print) | 9780955544507 |
| Publication status | Published - 2007 |
| Event | International Symposium on the Science and Technology of Light Sources (11th : 2007) - Shanghai, China Duration: 20 May 2007 → 24 May 2007 |
Conference
| Conference | International Symposium on the Science and Technology of Light Sources (11th : 2007) |
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| City | Shanghai, China |
| Period | 20/05/07 → 24/05/07 |