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Updated: Jul 28, 2026
Advanced Compositional Analysis of Nanoparticle-polymer Composites Using Direct Fluorescence Imaging
Published on: July 19, 2016
Polymer-BiI3 composites for high-performance, room-temperature, direct X-ray detectors
Ritu Chaudhari1, Chhaya Ravi Kant1, Alka Garg2
1Department of Applied Sciences and Humanities, Indira Gandhi Delhi Technical University for Women, Kashmere Gate, Delhi, 110006 India.
Abstract:
Low-energy X-rays have a predominant role in medical diagnostic applications, grown tremendously during recent Covid-19 pandemic times. Synthesis of stable, PMMA/polystyrene-BiI3 composites has been done through a facile, low-cost, dry-tumble mixing technique for direct X-ray detector applications. Comparative analysis of structural, optical, and photocurrent responses upon irradiation with low-energy X-rays (30 and 60 kV) ensue that PS-BiI3 demonstrates high SNR 3300, sensitivity 189 µC Gy-1 cm-3 and fast response time 30 ms, at dose rate 1.68 mGy s-1, affirming the composite to be prospective candidate for low-energy, room-temperature, direct X-ray detectors under low bias conditions.
Supplementary Information:
The online version contains supplementary material available at 10.1557/s43579-022-00185-6.
