A Novel X-Ray Radiation Sensor Based on Networked SnO2 Nanowires

Jae-Hun Kim,Phan Quoc Vuong,Sang Sub Kim,Ali Mirzaei,Hong Joo Kim,Hyoun Woo Kim

doi:10.3390/app9224878

Abstract

X-Ray radiation sensors that work at room temperature are in demand. In this study, a novel, low-cost real-time X-ray radiation sensor based on SnO2 nanowires (NWs) was designed and tested. Networked SnO2 NWs were produced via the vapor–liquid–solid technique. X-ray diffraction (XRD), transmission electron microscopy (TEM) and field emission scanning electron microscopy (SEM) analyses were used to explore the crystallinity and morphology of synthesized SnO2 NWs. The fabricated sensor was exposed to X-rays (80 kV, 0.0–2.00 mA) and the leakage current variations were recorded at room temperature. The SnO2 NWs sensor showed a high and relatively linear response with respect to the X-ray intensity. The X-ray sensing results show the potential of networked SnO2 NWs as novel X-ray sensors.

Highlights

Radiation can be broadly divided into two categories: uncharged radiation, including X-rays, gamma rays, and neutrons; charged radiation, including electrons, positrons, and alpha particles [1]
With a decrease in temperature and in the presence the presence of flowing oxygen, the SnO2 crystals nucleated at the liquid–solid interface and further of flowing oxygen, the SnO2 crystals nucleated at the liquid–solid interface and further condensation/dissolution of Sn vapor increased the amount of SnO2 crystal precipitation from the alloy
In this study, networked SnO2 NWs were fabricated by a VLS technique and were used for the detection of study, X-ray radiation at room

Summary

Introduction

Radiation can be broadly divided into two categories: uncharged radiation, including X-rays, gamma rays, and neutrons; charged radiation, including electrons, positrons (beta particles), and alpha particles [1]. Many researchers have used these materials for different applications, ranging from catalysts [3] to sensors [4,5,6,7]. They can be used for high-energy radiation sensors. The radiations with a high energy like gamma rays and X-rays can alter the concentration of oxygen vacancies and create point defects and other structural defects in MOs [8]. Metal oxides can be used for the detection of high-energy radiation [9]

Methods

Results

Conclusion