P2.4.1 Effect of ZnO nanorods density on NO2 sensing

Event

14th International Meeting on Chemical Sensors - IMCS 2012
2012-05-20 - 2012-05-23
Nürnberg/Nuremberg, Germany

Chapter

P2.4 Nanostructured Sensors

Author(s)

S. Öztürk, N. Kilinç, Z. Öztürk - Gebze Institute of Technology, Department of Physics (Turkey)

Pages

1497 - 1499

DOI

10.5162/IMCS2012/P2.4.1

ISBN

978-3-9813484-2-2

Price

free

Abstract

In this study, we aimed to control dimensions of vertically aligned nanorods on zinc oxide (ZnO) seed layer coated glass substrate and to investigate effects of density on gas sensing. To produce ZnO seed layer, Zinc acetate solution was coated by using spin-coater. ZnO nanorods with different density were grown by changing concentration of solution used in hydrothermal process. Hydrothermal process was realized at 90°C for 3h. For investigation gas sensing properties, interdigitated Au electrodes were coated on ZnO nanorods by using thermal evaporator. All samples were tested against nitrogen dioxide (NO2) in dry air ambient depending on concentration (100 ppb - 1 ppm) at 200°C.