Polvmer-BiI3 composites for high-performance, room-temperature, direct X-ray detectors

被引：7
|
作者：
Chaudhari, Ritu [1 ]
Kant, Chhaya Ravi [1 ]
Garg, Alka [2 ]
机构：
[1] Indira Gandhi Delhi Tech Univ Women, Dept Appl Sci & Humanities, Delhi 110006, India
[2] Univ Delhi, Gargi Coll, Siri Ft Rd, New Delhi 110049, India
来源：
MRS COMMUNICATIONS | 2022年 / 12卷 / 03期
关键词：
CRYSTAL;
D O I：
10.1557/s43579-022-00185-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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 mu C 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.
引用
收藏
页码：358 / 364
页数：7
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