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BEGIN:VEVENT
DTSTAMP:20260503T220507Z
DTSTART;VALUE=DATE-TIME:20240223T140000
DTEND;VALUE=DATE-TIME:20240223T153000
SUMMARY:Photoelectrochemical Devices for Space Applications
TZID:Europe/London
UID:20240223-8a17841a8d79730b018d7a52938907be@warwick.ac.uk
CREATED:20240208T170754Z
DESCRIPTION:We are thrilled to welcome Dr Katharina Brinkert from the Che
 mistry Department at the University of ����TV as the next speaker in th
 e Centre for Exoplanets and Habitability seminar series. Dr Brinkert wil
 l be giving a talk titled 'Photoelectrochemical Devices for Space Applic
 ations'. Abstract: Human deep space exploration will rely on efficient a
 nd sustainable life support systems for the production of oxygen and oth
 er chemicals as well as the recycling of carbon dioxide. Photoelectroche
 mical (PEC) devices are investigated for the light-assisted production o
 f hydrogen and carbon-based fuels from CO2 within the green energy trans
 ition on Earth [1]. Similarly to natural photosynthesis\, they only requ
 ire water and solar energy for the process and release oxygen as a by-pr
 oduct. Their monolithic\, compact design comprising integrated semicondu
 ctor-electrocatalyst systems for light absorption\, charge separation an
 d catalysis as well as their sole reliance on solar energy makes them at
 tractive for applications in space\, where they can directly convert sol
 ar into chemical energy without requiring additional accessories [2\,3].
  This talk highlights our recent experiments with PEC devices in microgr
 avity environments realised for 9.3 s at the Bremen Drop Tower and links
  results regarding device efficiencies to gas bubble management [4] and 
 optoelectronic simulations [5]. We will discuss obstacles such as the li
 miting solar irradiance on Mars as well as the reduced gravitation on th
 e Martian and lunar surface for the application of PEC and other electro
 chemical devices in these environments and point to practical\, sustaina
 ble solutions how to overcome them. [1] Fehr A. M. K. et al. (2023). "In
 tegrated halide perovskite photoelectrochemical cells with solar-driven 
 water-splitting efficiency of 20.8%"\, Nat. Commun. 14 (3797). [2] Brink
 ert K. et al. (2018). Nat. Commun. 9 (2527). [3] Brinkert K. and Mandin\
 , P. (2022). "Fundamentals and future applications of electrochemical en
 ergy conversion in space"\, npj Microgravity 52 [4] Romero-Calvo Á. et a
 l. (2022). "Magnetic phase separation in microgravity"\, Microgravity 8 
 (32) [5] Ross B. et al. (2023). "Assessment of the technological viabili
 ty of photoelectrochemical devices for oxygen and fuel production on Moo
 n and Mars"\, Nat. Commun. 14\, (3141)
LOCATION:S0.20 and Microsoft Teams
URL:/fac/sci/physics/research/astro/ceh/seminar-kath
 arina-brinkert/
ATTACH:/fac/sci/physics/research/astro/ceh/seminar-k
 atharina-brinkert/
CATEGORIES:warwick,seminar,CEH,seminar series
LAST-MODIFIED:20240208T170754Z
ORGANIZER;CN=David Brown:
END:VEVENT
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