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Patison Palee - IEEE Xplore Author Profile

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High Altitude Pseudo-Satellites (HAPS) are fixed wing, heavier-than-air solar electric aircraft that operate continuously for multiple months in the stratosphere. They are energy selfsufficient, highly automated, low signature, with low vulnerability to attack. MicroLink Devices’ inverted metamorphic (IMM) multijunction epitaxial lift-off (ELO) solar cell technology is the basis for advanced thin-...Show More
MicroLink has developed highly flexible solar sheets that exhibit high specific power and are suitable for stratospheric flight applications. Here we present reliability test data as well as actual stratospheric flight data of these solar sheets. Data from the 24-hour high-altitude balloon flight that was performed in September 2019 out of Baltic, SD at an altitude of 19km showed peak power output...Show More
MicroLink Devices has deposited screen printed silver contacts on bulk pseudomorphic InGaAs and for the first time on epitaxial thin film foils. MicroLink has achieved contact resistances of 1E-6 Ohms·cm-2 on bulk InGaAs, and 4E-2 Ohms·cm-2 on solar cell foils. Ink formulations with tin are also explored. This work shows an alternative, low-cost, and high-throughput method for contacting III-V sol...Show More
MicroLink Devices has developed a solar sheet technology with very high specific power for specific use on solar aircraft. These solar sheets have specific powers in excess of 1500 W/kg (AM0) which is an enabling technology for solarpowered unmanned aircraft that require maximum power generation in a format of minimum weight. This was achieved by maximizing the solar power generated by the solar s...Show More
MicroLink Devices has developed triple-junction (3J) GaInP/GaAs/GaInAs epitaxial lift-off (ELO) 20 cm2 solar cells achieving >3 kW/kg specific power and >30% AM0 (>34% AM1.5G) 1-Sun power conversion efficiency. These cells were manufactured using volume mass-production tools and processes. Preliminary reliability testing of bare cells and laminated arrays showed no appreciable degradation.Show More
The Marines have increasing battery needs as fighting technology puts higher demands on the power they use. In an effort to offset this demand, the marines are investigating alternative energy sources, one being solar power. Mobile photovoltaics (PV) are a technology that can address these needs by leveraging flexible high efficiency III–V photovoltaic technology. The development of a lightweight,...Show More
The military's need to reduce both fuel and battery resupply is a real time requirement for increasing combat effectiveness and decreasing vulnerability. Mobile photovoltaics (PV) are a technology that can address these needs by leveraging emerging, flexible space photovoltaic technology. In this ongoing project, the development and production of a semi-rigid, lightweight, efficient solar blanket ...Show More
The military's need to reduce both fuel and battery resupply is a real-time requirement for increasing combat effectiveness and decreasing vulnerability. Mobile photovoltaics (PV) is a technology that can address these needs by leveraging emerging, flexible space PV technology. In this project, the development and production of a semirigid, lightweight, efficient solar blanket with the ability to ...Show More
The military's need to reduce both fuel and battery resupply is a real-time requirement for increasing combat effectiveness and decreasing vulnerability. Mobile photovoltaics (PV) is a technology that can address these needs by leveraging emerging, flexible space PV technology. In this project, the development and production of a semirigid, lightweight, efficient solar blanket with the ability to ...Show More
Large area (20 cm2) epitaxial lifted-off (ELO) triple junction (TJ) solar cells based on inverted metamorphic (IMM) InGaP/GaAs/InGaAs were fabricated. These TJ IMM ELO solar cells exhibited efficiency >;29% at one sun AMO illumination, which is the highest reported efficiency for IMM ELO thin cells to date. The cells had fill factor >;85%, open circuit voltage (Voc) = 2.93 V, and short circuit cur...Show More