Metal oxide nanostructures synthesized on flexible and solid substrates and used for catalysts, UV detectors and chemical sensors
2015 (English)In: OXIDE-BASED MATERIALS AND DEVICES VI, Society of Photo-optical Instrumentation Engineers (SPIE) , 2015, Vol. 9364, no 936414, 936414- p.Conference paper (Refereed)
In this paper we demonstrate the visibility of the low temperature chemical synthesis for developing device quality material grown on flexible and solid substrates. Both colorimetric sensors and UV photodetectors will be presented. The colorimetric sensors developed on paper were demonstrated for heavy metal detection, in particular for detecting copper ions in aqueous solutions. The demonstrated colorimetric copper ion sensors developed here are based on ZnO@ ZnS core-shell nanoparticles (CSNPs). These sensors demonstrated an excellent low detection limit of less than 1 ppm of copper ions. Further the colorimetric sensors operate efficiently in a wide pH range between 4 and 11, and even in turbulent water. The CSNPs were additionally used as efficient photocatalytic degradation element and were found to be more efficient than pure ZnO nanoparticles (NPs). Also p-NiO/n-ZnO thin film/nanorods pn junctions were synthesized by a two-step synthesis process and were found to act as efficient UV photodetectors. Additionally we show the effect of the morphology of different CuO nanostructures on the efficiency of photo catalytic degradation of Congo red organic dye.
Place, publisher, year, edition, pages
Society of Photo-optical Instrumentation Engineers (SPIE) , 2015. Vol. 9364, no 936414, 936414- p.
, Proceedings of SPIE, ISSN 0277-786X ; 9364
Nanostructures; zinc oxide; nickel oxide; copper oxide; colorimetric sensors; photocatalytic degradation; UV photodetectors; photo catalytic degradation
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:liu:diva-119273DOI: 10.1117/12.2086803ISI: 000354281000013ISBN: 978-1-62841-454-7OAI: oai:DiVA.org:liu-119273DiVA: diva2:820537
Conference on Oxide-Based Materials and Devices VI