Letter/Communication
Direct X-ray Detectors Based on an Eco-Friendly Semiconducting Zero-Dimensional Organic Zinc Bromide Hybrid
ACS energy letters, Vol.9(12), pp.5704-5711
12/13/2024
Web of Science ID: WOS:001346941000001
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Abstract
Direct X-ray detectors that convert X-rays to electrical charges have broad applications in medicine and security screening. Common semiconductors like
silicon and selenium for direct X-ray detectors have limitations in performance, versatility, and cost-effectiveness. Among new materials under investigation, metal halide perovskites demonstrate great potential for X-ray detectors; however, they are limited by low stability and toxicity. Here, we report, for the first time, a stable and eco-friendly zero-dimensional (0D) organic metal halide hybrid (OMHH), (TPAP)2ZnBr4, for efficient X-ray detectors. With molecular sensitization, wherein metal halides (ZnBr42−) act as X-ray absorbers and organic semiconducting components (TPA-P+, 4-(4-(diphenylamino)phenyl)-1-propylpyridin-1-ium) as charge transporters, 0D (TPA-P)2ZnBr4 detectors exhibit an impressive sensitivity of 2,292 μC Gyair−1
cm−2 at 20 V and a low detection limit of 37.5 nGyair s−1. The exceptional stability of 0D (TPA-P)2ZnBr4 facilitates remarkably stable direct X-ray detection and shows the tremendous potential of rationally designed 0D OMHHs as new-generation radiation detection materials.
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Details
- Title
- Direct X-ray Detectors Based on an Eco-Friendly Semiconducting Zero-Dimensional Organic Zinc Bromide Hybrid
- Publication Details
- ACS energy letters, Vol.9(12), pp.5704-5711
- Resource Type
- Letter/Communication
- Publisher
- American Chemical Society
- Number of pages
- 8
- Copyright
- © 2024 American Chemical Society
- Identifiers
- WOS:001346941000001; 99381443120806600
- Academic Unit
- Chemistry; Hal Marcus College of Science and Engineering
- Language
- English