Zn(Li)O nanorods for direct conversion X-ray sensors in the intra-oral energy range

• Published in: Applied physics. A, Materials science & processing Vol. 128; no. 12
• Main Authors: Karthieka, R. R., Prakash, T.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2022; Springer Nature B.V
• Subjects: Applied physics; Blade coating; Characterization and Evaluation of Materials; Condensed Matter Physics; Direct conversion; Machines; Manufacturing; Materials science; Nanorods; Nanotechnology; Optical and Electronic Materials; Photoelectric effect; Physics; Physics and Astronomy; Processes; Raman spectroscopy; Sensitivity; Sensors; Substrates; Surfaces and Interfaces; Thermal decomposition; Thick films; Thin Films; X ray imagery; Zinc oxide; Attenuation effect; X-ray sensor; Photocurrent measurement; Low dose; Zn(Li)O nanorods
• ISSN: 0947-8396; 1432-0630
• DOI: 10.1007/s00339-022-06205-5

X-ray sensor has a significant application in numerous fields. It creates a high demand for achieving an X-ray sensor with high sensitivity at a low detection limit. Here, ZnO is incorporated with different concentrations of Li (Zn-0.99: Li-0.01, Zn-99: Li-1, Zn-95: Li-5, Zn-90: Li-10) by thermal decomposition route. The obtained products were characterized for its structure and purity form using X-ray diffraction and Raman spectroscopy, respectively. A scanning electron microscope detects all the samples that exist in rod morphology. The doctor blading technique employs a thick film X-ray sensor development for different concentrated Zn(Li)O nanorods above the interdigitated electrode substrate. The photocurrent instigated by the Zn(Li)O thick films at different X-ray doses using a pulsed intra-oral machine was measured under a two-volt bias with the help of a source meter. Further, the attenuation effect on an incremental addition of Li in the ZnO lattice alters the sensing nature of all the different doses. The appreciable sensitivity of Zn(Li)O nanorods obtained against pulsed X-ray doses explores the applicability of Zn(Li)O nanorods for X-ray imaging sensor fabrication.