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BACK-SURFACE REFLECTOR [1 record]
Record 1 - internal organization data 2003-07-21
Record 1, English
Record 1, Subject field(s)
- Photoelectricity and Electron Optics
- Solar Energy
- Spacecraft
- Orbital Stations
Record 1, Main entry term, English
- back surface reflector
1, record 1, English, back%20surface%20reflector
correct
Record 1, Abbreviations, English
- BSR 1, record 1, English, BSR
correct
Record 1, Synonyms, English
- back-surface reflector 2, record 1, English, back%2Dsurface%20reflector
correct
- BSR 2, record 1, English, BSR
correct
- BSR 2, record 1, English, BSR
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Another innovation is the back-surface reflector (BSR). Even in photovoltaic devices operating at theoretical maximum efficiency, less than 40% of the light to which it is sensitive is absorbed by the cell and converted to electricity. The rest travels through unabsorbed and becomes a system loss. However, the BSR reflects this light back through the cell for a second pass, which greatly increases the conversion efficiency. Also, the BSR reflects radiation to which the cell is not sensitive. This radiation is called out-of-band radiation, and cannot be converted to electricity with this given material bandgap. By reflecting the out-of-band radiation back through the cell, it passes back out the front to the heat source where it is recycled. (Essentially, it helps keep the heat source hot so less fuel is required.) 2, record 1, English, - back%20surface%20reflector
Record 1, French
Record 1, Domaine(s)
- Photo-électricité et optique électronique
- Énergie solaire
- Engins spatiaux
- Stations orbitales
Record 1, Main entry term, French
- réflecteur dans le contact arrière
1, record 1, French, r%C3%A9flecteur%20dans%20le%20contact%20arri%C3%A8re
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- surface arrière réfléchissante 2, record 1, French, surface%20arri%C3%A8re%20r%C3%A9fl%C3%A9chissante
feminine noun
- BSR 2, record 1, French, BSR
feminine noun
- BSR 2, record 1, French, BSR
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
On réduit l'échauffement de ces photopiles en réalisant un réflecteur dans le contact arrière [...], ce qui favorise aussi la création de porteurs de charge aux longueurs d'onde voisines de celle correspondant au seuil d'absorption intrinsèque, en augmentant leur trajet optique. On obtient le réflecteur par une métallisation à l'aluminium; le contact arrière est constitué d'un dépôt multicouche : Al-Ti-Pd-Ag. 1, record 1, French, - r%C3%A9flecteur%20dans%20le%20contact%20arri%C3%A8re
Record 1, Spanish
Record 1, Textual support, Spanish
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