Photoluminescence and Photoresponse Property of Ag Modified ZnO Nanowire

The ZnO nanowires grown via hydrothermal method were modified by Ag with different concentration in solution.The morphology,photoluminescence property,photoresponse of the ZnO nanowire were stu-died.The results exhibited that the intensity of photoluminescence decreases with the increased Ag concentration.The photoresponses of as-grown and modified by Ag of 10 mmol/L nanowires were tested and compared.The responsivity of Ag modified ZnO nanowire was 4.6 mA/W at 380 nm.This value was 75 times larger than that of the as-grown one.The results indicated that photoresponse property of ZnO nanowires can be effectively improved by Ag modifying.