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Stable, High-Sensit...
Stable, High-Sensitivity and Fast-Response Photodetectors Based on Lead-Free Cs2AgBiBr6 Double Perovskite Films
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- Yang, Jie (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten,Shenzhen Univ, Peoples R China
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- Bao, Chunxiong (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten,Shenzhen Univ, Peoples R China
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- Ning, Weihua (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten,Nanjing Tech Univ, Peoples R China
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- Wu, Bo (författare)
- Nanyang Technol Univ, Singapore
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- Ji, Fuxiang (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Yan, Zhibo (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten,Nanjing Univ, Peoples R China
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- Tao, Youtian (författare)
- Nanjing Tech Univ, Peoples R China
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- Liu, Jun-Ming (författare)
- Nanjing Univ, Peoples R China
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- Sum, Tze Chien (författare)
- Nanyang Technol Univ, Singapore
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- Bai, Sai (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Wang, Jianpu (författare)
- Nanjing Tech Univ, Peoples R China
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- Huang, Wei (författare)
- Nanjing Tech Univ, Peoples R China
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- Zhang, Wenjing (författare)
- Shenzhen Univ, Peoples R China
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- Gao, Feng (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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(creator_code:org_t)
- 2019-05-03
- 2019
- Engelska.
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Ingår i: Advanced Optical Materials. - : WILEY-V C H VERLAG GMBH. - 2162-7568 .- 2195-1071. ; 7:13
- Relaterad länk:
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https://liu.diva-por... (primary) (Raw object)
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https://dr.ntu.edu.s...
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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
- Solution-processed metal halide perovskites (MHPs) have demonstrated great advances on achieving high-performance photodetectors. However, the intrinsic material instability and the toxicity of lead still hinder the practical applications of MHPs-based photodetectors. In this work, the first highly sensitive and fast-response lead-free perovskite photodetectors based on Cs2AgBiBr6 double perovskite films are demonstrated. A convenient solution method is developed to deposit high-quality Cs2AgBiBr6 film with large grain sizes, low trap densities, and long charge carrier lifetimes. Incorporated within a photodiode device architecture comprised of optimized hole- and electron-transporting layers, lead-free perovskite photodetectors are achieved exhibiting a high detectivity of 3.29 x 10(12) Jones, a large linear dynamic range of 193 dB, and a fast response time of approximate to 17 ns. All the key figures of merit of the devices are comparable with the reported best-performing photodetectors based on lead halide perovskites. In addition, the resulting devices exhibit excellent thermal and environmental stability. The nonencapsulated devices show negligible degradation after thermal stressing at 150 degrees C and less than 5% degradation in the photoresponsivity after storage in ambient air for approximate to 2300 h. The results demonstrate the great potential of the lead-free Cs2AgBiBr6 double perovskite in applications for environmentally friendly and high-performance photodetectors.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Nyckelord
- Cs2AgBiBr6; environmental stability; fast response; lead-free perovskites; photodetectors; thermal stability
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Yang, Jie
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Bao, Chunxiong
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Ning, Weihua
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Wu, Bo
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Ji, Fuxiang
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Yan, Zhibo
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visa fler...
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Tao, Youtian
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Liu, Jun-Ming
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Sum, Tze Chien
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Bai, Sai
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Wang, Jianpu
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Huang, Wei
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Zhang, Wenjing
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Gao, Feng
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- NATURVETENSKAP
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och Fysik
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Advanced Optical ...
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