Synthesis of Binary Bi2S3/ZnO Nanorod Array Heterostructure and Their Photoelectrochemical Performance
FE-SEM images of bare ZnO NRAs (a) at lower and higher magnification and ZnO nanorods decorated with Bi2S3 nanoparticles at lower and higher magnification, for (b) 3 cycles, (c) 7 cycles, and (d) 11 cycles. Cross-sectionals of the samples (a, c) are shown in the insets of the figures.
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