Remember that the final deadline to submit to the Perovskite Startup Prize Countdown Contest is next week—Thursday, March 23, at 5 p.m. ET. This is the last time the competition will be open to new competitors! Be sure to get your submission in early to avoid any technical difficulties.

As a reminder, your submission must include:

  • Company eligibility verification
  • 120-second video (public)
  • Cover page
  • Narrative answers to four questions (not to exceed 2,500 words)
  • Mentor Engagement Output - required for resubmission competitors, optional for new competitors
    • You can find a template in the Resources tab on HeroX
  • Résumés
  • Technical assistance request (public)
  • One summary PowerPoint slide (public)
  • Letters of commitment or support (optional)

We look forward to seeing your ideas. If you need assistance or need to connect with the Mentor Network, please reach out to ADL Ventures at

Make sure you mark your calendars so you don't miss the 5 p.m. ET deadline on March 23. We highly recommend submitting before the deadline to avoid connectivity or upload issues. We will not accept late submissions. 

Good luck!