Article

Journal of Materials Science

, Volume 47, Issue 11, pp 4726-4731

Scale-up synthesis of ZnO nanorods for printing inexpensive ZnO/polymer white light-emitting diode

  • G. AminAffiliated withDepartment of Science and Technology, Campus Norrköping, Linköping University Email author 
  • , M. O. SandbergAffiliated withAcreo AB, Printed Electronics
  • , A. ZainelabdinAffiliated withDepartment of Science and Technology, Campus Norrköping, Linköping University
  • , S. ZamanAffiliated withDepartment of Science and Technology, Campus Norrköping, Linköping University
  • , O. NurAffiliated withDepartment of Science and Technology, Campus Norrköping, Linköping University
  • , M. WillanderAffiliated withDepartment of Science and Technology, Campus Norrköping, Linköping University

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Abstract

In this study, possibilities of scaling up the synthesis of zinc oxide (ZnO) nanorods (NRs) by the hydrothermal method have been explored. It was found that batches yielding several grams can easily be made using common and easily available materials. Further, a printable composition was fabricated by mixing the obtained ZnO NRs into a common solvent-based screen printable varnish. Scanning electron microscope, high-resolution transmission electron microscope, X-ray diffraction, UV–vis spectroscopy analysis of the scaled up batch indicated that the ZnO nanostructures were of NRs shape, well crystalline and having less defects. Using the ZnO NRs-based printable composition a device fabrication on a flexible substrate was demonstrated, producing a flexible light-emitting device being highly tolerant to bending.