Chromaticity study of Curcumin Dye Extracted from Curcuma longa L. using for UV light down conversion for white light emitting diode
Turmeric phosphor dye extracted from Curcuma Longa L. through simple technique using silica gel. The phosphor was used light down-conversion of UV light for white light emitting diode (WLED).Two types of UV (380nm and 395nm )wavelengths have been used.The characteristics of the white light chromatic...
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2017
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| Subjects: | |
| Online Access: | http://eprints.usm.my/48824/ http://eprints.usm.my/48824/1/ZH17_OP03.pdf%20done.pdf |
| _version_ | 1848881265740087296 |
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| author | AI Shafouri, M. Ahmed, Naser M. Hassan, Z. Almessiere, Munirah Abdullah |
| author_facet | AI Shafouri, M. Ahmed, Naser M. Hassan, Z. Almessiere, Munirah Abdullah |
| author_sort | AI Shafouri, M. |
| building | USM Institutional Repository |
| collection | Online Access |
| description | Turmeric phosphor dye extracted from Curcuma Longa L. through simple technique using silica gel. The phosphor was used light down-conversion of UV light for white light emitting diode (WLED).Two types of UV (380nm and 395nm )wavelengths have been used.The characteristics of the white light chromaticity was controlled by changing the current and the concentration of the phosphor.The concentration has a critical effect on the conversion
efficiency. The CIE coordinates and correlated colortemperature were measured for various phosphorweight and current. An optimum color renderingindex (CRI) value of 78.5 is obtained .The white phosphor has a (CIE) value of (0 .336,0.355) and the color temperature (CCT)5350K. |
| first_indexed | 2025-11-15T18:16:17Z |
| format | Conference or Workshop Item |
| id | usm-48824 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T18:16:17Z |
| publishDate | 2017 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-488242021-04-09T03:06:43Z http://eprints.usm.my/48824/ Chromaticity study of Curcumin Dye Extracted from Curcuma longa L. using for UV light down conversion for white light emitting diode AI Shafouri, M. Ahmed, Naser M. Hassan, Z. Almessiere, Munirah Abdullah QC1-999 Physics Turmeric phosphor dye extracted from Curcuma Longa L. through simple technique using silica gel. The phosphor was used light down-conversion of UV light for white light emitting diode (WLED).Two types of UV (380nm and 395nm )wavelengths have been used.The characteristics of the white light chromaticity was controlled by changing the current and the concentration of the phosphor.The concentration has a critical effect on the conversion efficiency. The CIE coordinates and correlated colortemperature were measured for various phosphorweight and current. An optimum color renderingindex (CRI) value of 78.5 is obtained .The white phosphor has a (CIE) value of (0 .336,0.355) and the color temperature (CCT)5350K. 2017-11-16 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.usm.my/48824/1/ZH17_OP03.pdf%20done.pdf AI Shafouri, M. and Ahmed, Naser M. and Hassan, Z. and Almessiere, Munirah Abdullah (2017) Chromaticity study of Curcumin Dye Extracted from Curcuma longa L. using for UV light down conversion for white light emitting diode. In: 6th International Conference on Solid State Science (ICSSST) 2017 & Technology and Workshop on Advanced Materials Technology: Growth & Characterization. |
| spellingShingle | QC1-999 Physics AI Shafouri, M. Ahmed, Naser M. Hassan, Z. Almessiere, Munirah Abdullah Chromaticity study of Curcumin Dye Extracted from Curcuma longa L. using for UV light down conversion for white light emitting diode |
| title | Chromaticity study of Curcumin Dye Extracted from Curcuma longa L. using for UV light down conversion for white light emitting diode |
| title_full | Chromaticity study of Curcumin Dye Extracted from Curcuma longa L. using for UV light down conversion for white light emitting diode |
| title_fullStr | Chromaticity study of Curcumin Dye Extracted from Curcuma longa L. using for UV light down conversion for white light emitting diode |
| title_full_unstemmed | Chromaticity study of Curcumin Dye Extracted from Curcuma longa L. using for UV light down conversion for white light emitting diode |
| title_short | Chromaticity study of Curcumin Dye Extracted from Curcuma longa L. using for UV light down conversion for white light emitting diode |
| title_sort | chromaticity study of curcumin dye extracted from curcuma longa l. using for uv light down conversion for white light emitting diode |
| topic | QC1-999 Physics |
| url | http://eprints.usm.my/48824/ http://eprints.usm.my/48824/1/ZH17_OP03.pdf%20done.pdf |