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ABSTRACT:
SUBMITTER: Ravishankar S
PROVIDER: S-EPMC9067593 | biostudies-literature | 2022 May
REPOSITORIES: biostudies-literature
Ravishankar Sandheep S Bisquert Juan J Kirchartz Thomas T
Chemical science 20220331 17
A large body of literature reports that both bismuth vanadate and haematite photoanodes are semiconductors with an extremely high doping density between 10<sup>18</sup> and 10<sup>21</sup> cm<sup>-3</sup>. Such values are obtained from Mott-Schottky plots by assuming that the measured capacitance is dominated by the capacitance of the depletion layer formed by the doping density within the photoanode. In this work, we show that such an assumption is erroneous in many cases because the injection ...[more]