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Planetary Science Division / Science Mission Directorate

High Operating Temperature Technology (HOTTech)

–12 proposals were selected to cover a broad portfolio of technologies

–Approximately $600k/award with a max duration of 3 years

Electronics Packaging

500°C Capable, Weather-Resistant Electronics Packaging for Extreme Environment Exploration

Deeper understanding of survival/degradation behavior of die attach, metal interconnect, and housing materials in extreme conditions (500°C, chemically corrosive conditions)

Primary Batteries

High Temperature-resilient And Long-Life (HiTALL) Primary Batteries for Venus and Mercury Surface Missions

Being inherently stable at 500oC and high CO2 pressures (92 bar) and having high specific energy, these batteries will enable a long-term in-situ Venus missions for >30 days (vs <2h with the state of art batteries)

Solar Cells

Low Intensity High Temperature (LIHT) Solar Cells for Venus Exploration Missions

We are developing a dual-junction high-temperature GaAs/GaInP solar cell to satisfy the extreme Venus environmental requirements. The novel features of the proposed cell include:

Secondary Battery

High Energy, Long Cycle Life, and Extreme Temperature Lithium-Sulfur Battery for Venus Missions

SiC Electronics

SiC Electronics to Enable Long-Lived Chemical Sensor Measurements at the Venus Surface

Diamond Electronics

High Temperature Diamond Electronics for Actuators and Sensors


High Temperature Memory Electronics for Long-Lived Venus Missions

Combustion-Based Power Supply

Hot Operating Temperature Lithium combustion for IN situ Energy and Power

Vacuum Electronic Devices

Field Emission Vacuum Electronic Devices for Hot Temperature Operations

Chip-Scale Clocks

Passively Compensated Low-Power Chip-Scale Clocks for Wireless Communication in Harsh Environments

GaN Microprocessor

High Temperature GaN Microprocessor for Space Applications

Electric Motor

Development of a TRL6 Electric Motor and Position Sensor for Venus

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