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Synergistic strain ...
Synergistic strain engineering of perovskite single crystals for highly stable and sensitive X-ray detectors with low-bias imaging and monitoring
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- Jiang, Jizhong (författare)
- Jilin Univ, Peoples R China
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- Xiong, Min (författare)
- Nanchang Univ, Peoples R China
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- Fan, Ke (författare)
- Hong Kong Polytech Univ, Peoples R China
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- Bao, Chunxiong (författare)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
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- Xin, Deyu (författare)
- China Acad Engn Phys, Peoples R China
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- Pan, Zhengwei (författare)
- Nanchang Univ, Peoples R China
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- Fei, Linfeng (författare)
- Nanchang Univ, Peoples R China
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- Huang, Haitao (författare)
- Hong Kong Polytech Univ, Peoples R China
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- Zhou, Lang (författare)
- Nanchang Univ, Peoples R China
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- Yao, Kai (författare)
- Nanchang Univ, Peoples R China
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- Zheng, Xiaojia (författare)
- China Acad Engn Phys, Peoples R China
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- Shen, Liang (författare)
- Jilin Univ, Peoples R China
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- Gao, Feng (författare)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
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(creator_code:org_t)
- 2022-07-18
- 2022
- Engelska.
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Ingår i: Nature Photonics. - : Nature Portfolio. - 1749-4885 .- 1749-4893. ; 16:8, s. 575-581
- Relaterad länk:
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https://liu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- X-ray detectors based on dual-site-doped perovskite single crystals exhibit excellent sensitivity of 2.6 x 10(4) mu C Gy(air)(-1) cm(-2) under a low field of 1 V cm(-1). The detectable dose rate is as low as 7.09 nGy(air) s(-1). The operational stability is beyond half a year. Although three-dimensional metal halide perovskite (ABX(3)) single crystals are promising next-generation materials for radiation detection, state-of-the-art perovskite X-ray detectors include methylammonium as A-site cations, limiting the operational stability. Previous efforts to improve the stability using formamidinium-caesium-alloyed A-site cations usually sacrifice the detection performance because of high trap densities. Here we successfully solve this trade-off between stability and detection performance by synergistic composition engineering, where we include A-site alloys to decrease the trap density and B-site dopants to release the microstrain induced by A-site alloying. As such, we develop high-performance perovskite X-ray detectors with excellent stability. Our X-ray detectors exhibit high sensitivity of (2.6 +/- 0.1) x 10(4) mu C Gy(air)(-1) cm(-2) under 1 V cm(-1) and ultralow limit of detection of 7.09 nGy(air) s(-1). In addition, they feature long-term operational stability over half a year and impressive thermal stability up to 125 degrees C. We further demonstrate the promise of our perovskite X-ray detectors for low-bias portable applications with high-quality X-ray imaging and monitoring prototypes.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Jiang, Jizhong
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Xiong, Min
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Fan, Ke
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Bao, Chunxiong
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Xin, Deyu
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Pan, Zhengwei
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visa fler...
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Fei, Linfeng
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Huang, Haitao
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Zhou, Lang
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Yao, Kai
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Zheng, Xiaojia
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Shen, Liang
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Gao, Feng
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Annan fysik
- Artiklar i publikationen
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Nature Photonics
- Av lärosätet
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Linköpings universitet