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Photoelectrochemical (PEC) water splitting is a promising approach to harvest and store solar energy [
Photoelectrochemical (PEC) water splitting is a promising approach to harvest and store solar energy [
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This work was supported by a grant from Stanford GCEP, Precourt Institute of Energy and by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Award No. DOE DE-SC0008684 (for the microscopy and spectroscopy characterization part of this work). M. J. K. acknowledges support from an NSF Graduate Fellowship.