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Performance of High-Efficiency Advanced Triple-Junction Solar Panels for the LILT Mission DawnNASA's Discovery Mission Dawn is designed to (LILT) conditions. operate within the solar system's Asteroid belt, where the large distance from the sun creates a low-intensity, low-temperature (LILT) condition. To meet the mission power requirements under LlLT conditions, very high-efficiency multi-junction solar cells were selected to power the spacecraft to be built by Orbital Sciences Corporation (OSC) under contract with JPL. Emcore's InGaP/InGaAs/Ge advanced triple-junction (ATJ) solar cells, exhibiting an average air mass zero (AMO) efficiency of greater than 27.6% (one-sun, 28 C), were used to populate the solar panels [1]. The two solar array wings, to be built by Dutch Space, with 5 large- area panels each (total area of 36.4 sq. meters) are projected to produce between 10.3 kWe and 1.3 kWe of end-of life (EOL) power in the 1.0 to 3.0 AU range, respectively. The details of the solar panel design, testing and power analysis are presented.
Document ID
20080013218
Acquisition Source
Jet Propulsion Laboratory
Document Type
Preprint (Draft being sent to journal)
External Source(s)
Authors
Fatemi, Navid S.
(Emcore Photovoltaics Albuquerque, NM, United States)
Sharma, Surya
(Emcore Photovoltaics Albuquerque, NM, United States)
Buitrago, Oscar
(Emcore Photovoltaics Albuquerque, NM, United States)
Sharps, Paul R.
(Emcore Photovoltaics Albuquerque, NM, United States)
Blok, Ron
(Dutch Space Leiden, Netherlands)
Kroon, Martin
(Emcore Photovoltaics Albuquerque, NM, United States)
Jalink, Cees
(Emcore Photovoltaics Albuquerque, NM, United States)
Harris, Robin
(Orbital Sciences Corp. Dulles, VA, United States)
Stella, Paul
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Distefano, Sal
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 24, 2013
Publication Date
January 3, 2005
Subject Category
Solar Physics
Meeting Information
Meeting: 31 Photovoltaic Specialists Conference and Exhibition
Location: Lake Buena Vista, FL
Country: United States
Start Date: January 3, 2005
End Date: January 7, 2005
Distribution Limits
Public
Copyright
Other
Keywords
triple junction solar cells
solar array
low-intensity, low-temperature (LILT)
Dawn

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