Oxide perovskite Ba2AgIO6 wafers for X-ray detection

Autor: Jincong Pang, Qi Xiao, Guangda Niu, Tong Jin, Jiajun Luo, Longbo Yang, Jiang Tang, Zhifang Tan
Rok vydání: 2021
Předmět:
Zdroj: Front Optoelectron
ISSN: 2095-2767
2095-2759
Popis: X-ray detection is of great significance in biomedical, nondestructive, and scientific research. Lead halide perovskites have recently emerged as one of the most promising materials for direct X-ray detection. However, the lead toxicity remains a worrisome concern for further commercial application. Great efforts have been made to search for lead-free perovskites with similar optoelectronic properties. Here, we present a lead-free oxide double perovskite material Ba(2)AgIO(6) for X-ray detection. The lead-free, all-inorganic nature, as well as the high density of Ba(2)AgIO(6), promises excellent prospects in X-ray applications. By employing the hydrothermal method, we successfully synthesized highly crystalline Ba(2)AgIO(6) powder with pure phase. Furthermore, we prepared Ba(2)AgIO(6) wafers through isostatic pressure and built X-ray detectors with Au/Ba(2)AgIO(6) wafer/Au photo-conductive structure. The as-prepared X-ray detectors showed a sensitivity of 18.9 µC/(Gy(air)·cm(2)) at 5 V/mm, similar to commercial α-Se detectors showcasing their advantages for X-ray detection. [Image: see text]
Databáze: OpenAIRE
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