Quantum Dot Monolayer Sensitized ZnO Nanowire‐Array Photoelectrodes: True Efficiency for Water Splitting

Hao Ming Chen, Chih Kai Chen, Yu‐Chuan Chang, Chi‐Wen Tsai, Ru‐Shi Liu, Shu‐Fen Hu, Wen‐Sheng Chang, Kuei‐Hsien Chen

Angewandte Chemie International Edition · 2010 · 294 citations · 21 references

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Abstract

A photoconversion efficiency of 1.83 % was observed for a photodevice based on ZnO nanowires sensitized with CdTe quantum dots (QDs; see picture; FTO=F-doped SnO2), which is more than 200 % greater than that of pristine ZnO nanowires. The presence of CdTe QDs on the surface of ZnO nanowires was confirmed by HRTEM and elemental mapping.

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