UV Photoresponse of Ag-Doped Multiple ZnO Nanowires

作者：Chu Manh Hung; Lee Joon Hyung; Kim Jeong Joo; Heo Young Woo^*

来源：Journal of Nanoelectronics and Optoelectronics, 2011, 6(3): 244-248.

DOI：10.1166/jno.2011.1161

• ZnO Nanowires
• Ag-Doped Multiple ZnO Nanowires
• Photoresponse
• Photoconductivity

ZnO nanowires doped with Ag were synthesized on indium-tin-oxide-(ITO)-coated glass substrates at a low temperature of 90 degrees C using an aqueous-solution method. Nanodevices based on undoped and Ag-doped multiple ZnO nanowires were also successfully fabricated using a method that combined photolithography and electron beam (e-beam) evaporation. The current-voltage (I-V) characteristics and photoresponses of the pure and Ag-doped multiple ZnO nanowires were measured under UV illumination (lambda = 365 nm). The currents of the 0-, 0.05-, and 0.1-mol%-Ag-doped ZnO nanowires under UV illumination were almost 22, 70, and 200 times higher, respectively, than that in the dark at -10 V. The photoconductivity of the undoped and Ag-doped multiple ZnO nanowire devices increased with the increase of the Ag content in the ZnO nanowires.

• 出版日期2011-8