Visible light-operated glucose-O<SUB align=right><SMALL>2</SMALL></SUB> biofuel cell

Visible light-operated glucose-O<SUB align="right"><SMALL>2</SMALL></SUB> biofuel cell consisting of chlorin-e<SUB align="right"><SMALL>6</SMALL></SUB> metal complexes (MChl–e<SUB align="right"><SMALL>6</SMALL></SUB>, M = H<SUB align="right"><SMALL>2</SMALL></SUB> and Zn) adsorbed on TiO<SUB align="right"><SMALL>2</SMALL></SUB> coated onto Optical Transparent conductive glass Electrode (OTE) as an anode, platinum electrode as a cathode, and the solution containing glucose, Glucose Dehydrogenase and NAD<SUP align="right"><SMALL>+</SMALL></SUP> as a fuel is studied. The cells using H<SUB align="right"><SMALL>2</SMALL></SUB>Chl-e<SUB align="right"><SMALL>6</SMALL></SUB> and Zn Chl-e<SUB align="right"><SMALL>6</SMALL></SUB> adsorbed on TiO<SUB align="right"><SMALL>2</SMALL></SUB> coated OTEs are defined as Biofuel Cell<SUB align="right"><SMALL>H2</SMALL></SUB> and Biofuel Cell<SUB align="right"><SMALL>Zn</SMALL></SUB>. The closed-circuit photocurrent in Biofuel Cell<SUB align="right"><SMALL>H2</SMALL></SUB> and Biofuel Cell<SUB align="right"><SMALL>Zn</SMALL></SUB> are 0.067 ± 0.003 and 0.017 ± 0.007 mA cm<SUP align="right"><SMALL>−2</SMALL></SUP>, and the open-circuit photo voltages are 503 ± 10 and 559 ± 12 mV, respectively.