Assertion: counter electrode | /r/CapableOf | function as cathode
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Source sentences:
text: QDSSCs mainly consist of three components: a quantum dot-modified mesoporous Ti[O.sub.2] electrode , which functions as a photoanode; a counter electrode , which functions as a cathode; and electrolyte, which is composed of sulfur redox couples and fills the gap between the photoanode and cathode.