Solar Water Splitting Cells.

  • Michael G. Walter James R. McKone, Shannon W. Boettcher,† Qixi Mi, Elizabeth A. Santori,and Nathan S. Lewis* E
  • Walter M
  • Warren E
 et al. 
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Abstract

A review on the efforts to develop an efficient semiconductor-based photoelectrochem. water splitting device in which the only inputs are sunlight and water. The fundamental principles of photoinduced electron-transfer mechanisms at a semiconductor/liq. junction, and optimization of such processes, are summarized. A wide range of both p- and n-type semiconductor photoelectrode materials that have been studied for photoelectrochem. water splitting cells are then described. In addn., heterogeneous electrocatalysts used to facilitate the oxidn. and redn. reactions in electrochem. and in photoelectrochem. water splitting systems are reviewed. Finally, efforts to combine photoanode, photocathode, and photovoltaic-assisted coupled configurations in both single and dual band gap photoelectrolysis cells are examd. in terms of their solar-to-hydrogen efficiency, stability, and expected viability. Strategies to optimize solar-to-chem. energy-conversion efficiencies by optimization of light harvesting structured semiconductors, photoinduced electron transfer and transport, and surface catalysis are also described. [on SciFinder(R)]

Author-supplied keywords

  • solar water splitting cell photoelectrolysis revie

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Authors

  • Emily L Warren Michael G. Walter James R. McKone, Shannon W. Boettcher,† Qixi Mi, Elizabeth A. Santori,and Nathan S. Lewis*

  • Michael G Walter

  • Emily L Warren

  • James R McKone

  • Shannon W Boettcher

  • Qixi Mi

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