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Award

Portfolio Data

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5 Watt per Kilogram Tritium Betavoltaic

Awardee

CITY LABS, INC.

12217 SW 131ST AVE
MIAMI, FL, 33186-6401
USA

Award Year: 2018

UEI: LD55BB3D8EM7

HUBZone Owned: No

Woman Owned: No

Socially and Economically Disadvantaged: No

Congressional District: 26

Tagged as:

SBIR

Phase I

Seal of the Agency: NASA

Awarding Agency

NASA

Total Award Amount: $124,947

Contract Number: 80NSSC18P2067

Agency Tracking Number: 186263

Solicitation Topic Code: S3

Solicitation Number: SBIR_18_P1

Abstract

The proposed innovation will significantly improve the performance of tritium-powered betavoltaic batteries through the development of a high bandgap InAlP diode coupled to a high beta-flux thin film metal tritide. Tritium has a power density of 300 W/kg andCity Labs’ new metal hydride film has a power density approaching 70 W/Kg and can be expanded to 100 W/kg.This project will investigate the performance improvement from a wide bandgap semiconductor diode, specifically with the goal of achieving >10% beta-electron energy conversion efficiency. The device will be built by City Labs with its tritium beta emitter expertise and MicroLink's metalorganic chemical vapor deposition (MOCVD) capability. The proposed Phase I research seeks to develop an InAlP p/n junction with a high beta-flux metal tritide for use in betavoltaic power sources. The betavoltaic p/n junction will increase the efficiency of betavoltaic devices from 8% up to 12% based on the incident tritium beta flux. The secondary goal is to investigate the release of the betavoltaic epitaxial layer through the removal of the substrate via lapidary and/or chemical etchants.

Award Schedule

  1. 2018
    Solicitation Year

  2. 2018
    Award Year

  3. July 27, 2018
    Award Start Date

  4. February 15, 2019
    Award End Date

Principal Investigator

Name: Peter Cabauy
Phone: (305) 909-7593
Email: peter.cabauy@citylabs.net

Business Contact

Name: Peter Cabauy
Phone: (305) 909-7593
Email: peter.cabauy@citylabs.net

Research Institution

Name: N/A