Fig. 5From: InGaN-based photoanode with ZnO nanowires for water splitting a IPCE of samples with ZnO growth times of 2 and 4 h in 0.5 M/l Na2SO4 solution under applied potential of 1.23 V versus RHE. b Simplified band diagram of InGaN-based sample with ZnO nanowires under equilibrium and biasBack to article page