TY - JOUR
T1 - Flexible Single Microwire X-Ray Detector with Ultrahigh Sensitivity for Portable Radiation Detection System
AU - Chen, Yancheng
AU - Niu, Shifeng
AU - Li, Ying
AU - Dou, Wenjie
AU - Yang, Xun
AU - Shan, Chongxin
AU - Shen, Guozhen
N1 - Publisher Copyright:
© 2024 Wiley-VCH GmbH.
PY - 2024/10/2
Y1 - 2024/10/2
N2 - Sensitive, flexible, and low false alarm rate X-ray detector is crucial for medical diagnosis, industrial inspection, and scientific research. However, most semiconductors for X-ray detectors are susceptible to interference from ambient light, and their high thickness hinders their application in wearable electronics. Herein, a flexible visible-blind and ultraviolet-blind X-ray detector based on Indium-doped Gallium oxide (Ga2O3:In) single microwire is prepared. Joint experiment−theory characterizations reveal that the Ga2O3:In microwire possess a high crystal quality, large band gap, and satisfactory stability, and reliability. On this basis, an extraordinary sensitivity of 5.9 × 105 µC Gyair−1 cm−2 and a low detection limit of 67.4 nGyair s−1 are achieved based on the prepared Ag/Ga2O3:In/Ag device, which has outstanding operation stability and excellent high temperature stability. Taking advantage of the flexible properties of the single microwire, a portable X-ray detection system is demonstrated that shows the potential to adapt to flexible and lightweight formats. The proposed X-ray detection system enables real-time monitor for X-rays, which can be displayed on the user interface. More importantly, it has excellent resistance to natural light interference, showing a low false alarm rate. This work provides a feasible method for exploring high-performance flexible integrated micro/nano X-ray detection devices.
AB - Sensitive, flexible, and low false alarm rate X-ray detector is crucial for medical diagnosis, industrial inspection, and scientific research. However, most semiconductors for X-ray detectors are susceptible to interference from ambient light, and their high thickness hinders their application in wearable electronics. Herein, a flexible visible-blind and ultraviolet-blind X-ray detector based on Indium-doped Gallium oxide (Ga2O3:In) single microwire is prepared. Joint experiment−theory characterizations reveal that the Ga2O3:In microwire possess a high crystal quality, large band gap, and satisfactory stability, and reliability. On this basis, an extraordinary sensitivity of 5.9 × 105 µC Gyair−1 cm−2 and a low detection limit of 67.4 nGyair s−1 are achieved based on the prepared Ag/Ga2O3:In/Ag device, which has outstanding operation stability and excellent high temperature stability. Taking advantage of the flexible properties of the single microwire, a portable X-ray detection system is demonstrated that shows the potential to adapt to flexible and lightweight formats. The proposed X-ray detection system enables real-time monitor for X-rays, which can be displayed on the user interface. More importantly, it has excellent resistance to natural light interference, showing a low false alarm rate. This work provides a feasible method for exploring high-performance flexible integrated micro/nano X-ray detection devices.
KW - GaO
KW - X-ray detector
KW - flexible
KW - highly sensitive
KW - portable radiation detection system
UR - http://www.scopus.com/inward/record.url?scp=85201383824&partnerID=8YFLogxK
U2 - 10.1002/adma.202404656
DO - 10.1002/adma.202404656
M3 - Article
AN - SCOPUS:85201383824
SN - 0935-9648
VL - 36
JO - Advanced Materials
JF - Advanced Materials
IS - 40
M1 - 2404656
ER -