Physical Transformation AtlasPTA
Constraint · constraint:pec-water-splitting-single-junction-ideal-limit

PEC water-splitting ideal limit, single junction

Fountaine, Lewerenz & Atwater's ideal-case limit for photoelectrochemical water splitting with one absorber: complete above-gap absorption, detailed-balance dark current with only radiative recombination, ideality 1, negligible catalytic overpotentials, no series resistance, E_rxn = 1.23 V, unity Faradaic efficiency, AM1.5G. A bound on water splitting, not on every manifestation of the photoelectrochemical effect: a datum is compared only when it states this basis.

Atlas record: 1 claim references this constraint — 1 established.

Explorerelations · sources · cite

η_STH ≤ 30.6 % for a single-junction photoelectrochemical water-splitting device under AM1.5G in the ideal case (E_g 1.59 eV at the maximum)

1claims0enumerated routes0routes with complete-composition evidence0candidate routes not searched2cited sources

Relations

bounded by · 1
Photoelectrochemical effect—bounded by→PEC water-splitting ideal limit, single junctionestablished
  • photoelectrochemical water splitting with a single absorber; a datum states the basis 'PEC water splitting, single-junction absorber, AM1.5G'

Cited sources · 2

  1. [1]
    Katherine T. Fountaine, Hans Joachim Lewerenz, Harry A. Atwater. Efficiency limits for photoelectrochemical water-splitting (2016)
    Nature Communications 7, 13706 (open access) · doi:10.1038/ncomms13706 · record
  2. [2]
    Elena Rozzi et al.. Green Synthetic Fuels: Renewable Routes for the Conversion of Non-Fossil Feedstocks into Gaseous Fuels and Their End Uses (2020)
    Energies 13(2), 420 (open access review) · doi:10.3390/en13020420 · record

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Physical Transformation Atlas (2026). entity constraint:pec-water-splitting-single-junction-ideal-limit: PEC water-splitting ideal limit, single junction. Dataset revision rbfbfcbb70e57 (hash of the canonical data). https://physical-transformation-atlas.wldud5192.workers.dev/e/constraint/pec-water-splitting-single-junction-ideal-limit

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