Absorption tails and extinction in luminescent solar concentrators
Non-ultraviolet (UV) photoexposure of luminescent solar concentrators (LSC's) can produce photoproducts that cause additional extinction at wavelengths somewhat longer than the main dye absorption peak. This photo-induced ‘tails’ extinction is deleterious to luminous output in collectors of use...
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| Veröffentlicht in: | Solar energy materials and solar cells 2011-04, Vol.95 (4), p.1157-1162 |
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| creator | Earp, Alan A. Franklin, Jim B. Smith, Geoff B. |
| description | Non-ultraviolet (UV) photoexposure of luminescent solar concentrators (LSC's) can produce photoproducts that cause additional extinction at wavelengths somewhat longer than the main dye absorption peak. This photo-induced ‘tails’ extinction is deleterious to luminous output in collectors of useful lengths. An experimental method that enables the subdivision of tails extinction in an LSC into absorbed and scattered components is described. The relevant theory is outlined, and experimental results are presented for a polymethyl methacrylate (PMMA) LSC containing
Lumogen F083 dye. For this sample, tails absorption increased significantly with outdoor exposure, while tails scattering remained constant. Further measurements indicate that LSC luminous output is around five times more sensitive to tails absorption than to fluorescence quenching. This work also indicates that merely checking for dye quenching, as is often done, can be a misleading indicator of long-term LSC output.
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| doi_str_mv | 10.1016/j.solmat.2010.12.044 |
| format | Article |
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Lumogen F083 dye. For this sample, tails absorption increased significantly with outdoor exposure, while tails scattering remained constant. Further measurements indicate that LSC luminous output is around five times more sensitive to tails absorption than to fluorescence quenching. This work also indicates that merely checking for dye quenching, as is often done, can be a misleading indicator of long-term LSC output.
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Lumogen F083 dye. For this sample, tails absorption increased significantly with outdoor exposure, while tails scattering remained constant. Further measurements indicate that LSC luminous output is around five times more sensitive to tails absorption than to fluorescence quenching. This work also indicates that merely checking for dye quenching, as is often done, can be a misleading indicator of long-term LSC output.
[Display omitted]</description><subject>Applied sciences</subject><subject>Chemistry</subject><subject>Concentrators</subject><subject>Dyes</subject><subject>Energy</subject><subject>Exact sciences and technology</subject><subject>Extinction</subject><subject>Fluorescence</subject><subject>General and physical chemistry</subject><subject>Light transport</subject><subject>Luminescent solar concentrators</subject><subject>Natural energy</subject><subject>Outdoor</subject><subject>Photochemistry</subject><subject>Photodegradation</subject><subject>Physical chemistry of induced reactions (with radiations, particles and ultrasonics)</subject><subject>PMMA</subject><subject>Polymethyl methacrylates</subject><subject>Quenching</subject><subject>Solar collectors</subject><subject>Solar energy</subject><subject>Solar thermal conversion</subject><subject>Subdivisions</subject><subject>Wavelengths</subject><issn>0927-0248</issn><issn>1879-3398</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp9kMlOIzEQhi00SGQCb8ChL2jm0qG84OWClEFsEhIXOFuO25YcdexgO6OZt8dNIo6pSy36q_7Sh9AlhgUGzK_Xi5LGjakLAtOILICxEzTDUqieUiV_oBkoInogTJ6hn6WsAYBwymboz3JVUt7WkGJXTRhLZ-LQuX81RPs1DLEbd5sQXbEu1q4ZmdzZFKcum5pyOUen3ozFXRzyHL0_3L_dPfUvr4_Pd8uX3jImao_xzUA5BQEepDd0pZQwxHluCVbMeCtWYDwjgyOt4ivlmeNcSSmVlQYInaNf-7vbnD52rlS9Ce2pcTTRpV3RkgMVioNsyt9HlVgIgTGmLeaI7aU2p1Ky83qbw8bk_xqDnuDqtd7D1RNcjYlucNva1cHBFGtGn020oXzvEqoIFXT65Havcw3M3-CyLja4Bm8I2dmqhxSOG30ClTKRsA</recordid><startdate>20110401</startdate><enddate>20110401</enddate><creator>Earp, Alan A.</creator><creator>Franklin, Jim B.</creator><creator>Smith, Geoff B.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SU</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>L7M</scope><scope>7TG</scope><scope>KL.</scope></search><sort><creationdate>20110401</creationdate><title>Absorption tails and extinction in luminescent solar concentrators</title><author>Earp, Alan A. ; 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This photo-induced ‘tails’ extinction is deleterious to luminous output in collectors of useful lengths. An experimental method that enables the subdivision of tails extinction in an LSC into absorbed and scattered components is described. The relevant theory is outlined, and experimental results are presented for a polymethyl methacrylate (PMMA) LSC containing
Lumogen F083 dye. For this sample, tails absorption increased significantly with outdoor exposure, while tails scattering remained constant. Further measurements indicate that LSC luminous output is around five times more sensitive to tails absorption than to fluorescence quenching. This work also indicates that merely checking for dye quenching, as is often done, can be a misleading indicator of long-term LSC output.
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Applied sciences Chemistry Concentrators Dyes Energy Exact sciences and technology Extinction Fluorescence General and physical chemistry Light transport Luminescent solar concentrators Natural energy Outdoor Photochemistry Photodegradation Physical chemistry of induced reactions (with radiations, particles and ultrasonics) PMMA Polymethyl methacrylates Quenching Solar collectors Solar energy Solar thermal conversion Subdivisions Wavelengths |
| title | Absorption tails and extinction in luminescent solar concentrators |
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