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Ultrathin Single-Cr...
Ultrathin Single-Crystalline 2D Perovskite Photoconductor for High-Performance Narrowband and Wide Linear Dynamic Range Photodetection
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- Tu, Yudi (author)
- Shenzhen Univ, Peoples R China
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- Xu, Yan (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten,Shenzhen Univ, Peoples R China
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- Li, Junzi (author)
- Shenzhen Univ, Peoples R China
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- Hao, Qiaoyan (author)
- Shenzhen Univ, Peoples R China
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- Liu, Xiaosong (author)
- Shenzhen Univ, Peoples R China
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- Qi, Dianyu (author)
- Shenzhen Univ, Peoples R China
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- Bao, Chunxiong (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten,Shenzhen Univ, Peoples R China
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- He, Tingchao (author)
- Shenzhen Univ, Peoples R China
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- Gao, Feng (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
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- Zhang, Wenjing (author)
- Shenzhen Univ, Peoples R China
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(creator_code:org_t)
- 2020
- English.
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In: Small. - : WILEY-V C H VERLAG GMBH. - 1613-6810 .- 1613-6829.
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- For next-generation Internet-of-Everything applications, for example, artificial-neural-network image sensors, artificial retina, visible light communication, on-chip light interconnection, and flexible devices, etc., high-performance microscale photodetectors are in urgent demands. 2D material (2DM) photodetectors have been researched and demonstrated impressive performances. However, they have not met the demands in filterless narrowband photoresponse, wide linear dynamic range (LDR), ultralow dark current, and large on/off ratio, which are key performances for these applications. 2D Ruddlesden-Popper perovskites (2D-RPPs) are recently highlighted photovoltaic and optoelectronic materials. Embedding ultrathin 2D-RPPs into 2DM photodetectors holds potentials to improve these performances. Herein, a single-crystalline ultrathin (PEA)(2)PbI4 is integrated into a vertical-stacked graphene-(PEA)(2)PbI4-graphene micro photoconductor (V-PEPI-PC). V-PEPI-PC exhibits narrowband photoresponses at 517 nm with a full-width-at-half-maximum of 15 nm and a wide LDR of 122 dB. Due to the multiple quantum wells in (PEA)(2)PbI4, V-PEPI-PC demonstrates an ultralow dark current of 1.1 x 10(-14) A (44 pA mm(-2)), a high specific detectivity of 1.2 x 10(13) Jones, and a high on/off ratio of 1.6 x 10(6). Owing to the short vertical channel, V-PEPI-PC shows a fast response rise time of 486 mu s. Therefore, the vertical-stacked photodetectors based on hybrid 2D-RPPs and 2DMs may have great potentials in future optoelectronics.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinsk bioteknologi -- Biomedicinsk laboratorievetenskap/teknologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Medical Biotechnology -- Biomedical Laboratory Science/Technology (hsv//eng)
Keyword
- 2D materials; 2D perovskites; linear dynamic range; narrowband; photodetectors
Publication and Content Type
- ref (subject category)
- art (subject category)
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Small
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To the university's database
- By the author/editor
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Tu, Yudi
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Xu, Yan
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Li, Junzi
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Hao, Qiaoyan
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Liu, Xiaosong
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Qi, Dianyu
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show more...
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Bao, Chunxiong
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He, Tingchao
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Gao, Feng
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Zhang, Wenjing
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show less...
- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Medical Biotechn ...
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and Biomedical Labor ...
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Small
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Linköping University