A Lateral ZnO Nanowire Photodetector Prepared on Glass Substrate

We report the fabrication of a lateral ZnO nanowire UV photodetector on a glass substrate using tungsten as the growth barrier to suppress the vertical growth of the ZnO nanowires. Upon UV illumination, the detector current increased by more than 1 order of magnitude. Furthermore, the noise equivalent power and the normalized detectivity D ∗ of the fabricated lateral ZnO nanowire photodetector were 7.89 × 10 − 11 W and 1.9 × 10 8 cm Hz 0.5 W − 1 , respectively.