Capillary-bridge mediated assembly of aligned perovskite quantum dots for high-performance photodetectors

Zhigao Dai, Qingdong Ou, Chujie Wang, Guangyuan Si, Babar Shabbir, Changxi Zheng, Ziyu Wang, Yupeng Zhang, Yamin Huang, Yemin Dong, Jacek J. Jasieniak, Bin Su, Qiaoliang Bao

Research output: Contribution to journalArticleResearchpeer-review

1 Citation (Scopus)

Abstract

Effective assembly of perovskite quantum dots is a huge challenge to develop high-performance optoelectronic devices with large scale integration functionality. Here, we demonstrate a facile way to fabricate one-dimensional arrays consisting of aligned perovskite quantum dots and their remarkable application as high-performance photodetectors. All inorganic perovskite CsPbX3 (X = Cl, Br, I) quantum dots, synthesized by a hot injection method, are precisely assembled into the one-dimensional arrays using a liquid bridge induced assembly strategy. Systematic studies have shown that photodetectors based on such one-dimensional CsPbI3 quantum dot arrays have excellent performance in terms of high responsivity and high detection sensitivity. It is suggested that the availability of more oxygen-rich hole trapping states on the surface of the quantum dots play an important role in the photocurrent generation. This work presents a significant step forward towards scalable self-assembly of perovskite quantum dots into one-dimensional arrays, indicating an enormous potential in manufacturing of high-performance integrated optoelectronic sensor circuitry.

Original languageEnglish
Pages (from-to)5954-5961
Number of pages8
JournalJournal of Materials Chemistry C
Volume7
Issue number20
DOIs
Publication statusPublished - 28 May 2019

Cite this

Dai, Zhigao ; Ou, Qingdong ; Wang, Chujie ; Si, Guangyuan ; Shabbir, Babar ; Zheng, Changxi ; Wang, Ziyu ; Zhang, Yupeng ; Huang, Yamin ; Dong, Yemin ; Jasieniak, Jacek J. ; Su, Bin ; Bao, Qiaoliang. / Capillary-bridge mediated assembly of aligned perovskite quantum dots for high-performance photodetectors. In: Journal of Materials Chemistry C. 2019 ; Vol. 7, No. 20. pp. 5954-5961.
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abstract = "Effective assembly of perovskite quantum dots is a huge challenge to develop high-performance optoelectronic devices with large scale integration functionality. Here, we demonstrate a facile way to fabricate one-dimensional arrays consisting of aligned perovskite quantum dots and their remarkable application as high-performance photodetectors. All inorganic perovskite CsPbX3 (X = Cl, Br, I) quantum dots, synthesized by a hot injection method, are precisely assembled into the one-dimensional arrays using a liquid bridge induced assembly strategy. Systematic studies have shown that photodetectors based on such one-dimensional CsPbI3 quantum dot arrays have excellent performance in terms of high responsivity and high detection sensitivity. It is suggested that the availability of more oxygen-rich hole trapping states on the surface of the quantum dots play an important role in the photocurrent generation. This work presents a significant step forward towards scalable self-assembly of perovskite quantum dots into one-dimensional arrays, indicating an enormous potential in manufacturing of high-performance integrated optoelectronic sensor circuitry.",
author = "Zhigao Dai and Qingdong Ou and Chujie Wang and Guangyuan Si and Babar Shabbir and Changxi Zheng and Ziyu Wang and Yupeng Zhang and Yamin Huang and Yemin Dong and Jasieniak, {Jacek J.} and Bin Su and Qiaoliang Bao",
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Dai, Z, Ou, Q, Wang, C, Si, G, Shabbir, B, Zheng, C, Wang, Z, Zhang, Y, Huang, Y, Dong, Y, Jasieniak, JJ, Su, B & Bao, Q 2019, 'Capillary-bridge mediated assembly of aligned perovskite quantum dots for high-performance photodetectors', Journal of Materials Chemistry C, vol. 7, no. 20, pp. 5954-5961. https://doi.org/10.1039/c9tc01104h

Capillary-bridge mediated assembly of aligned perovskite quantum dots for high-performance photodetectors. / Dai, Zhigao; Ou, Qingdong; Wang, Chujie; Si, Guangyuan; Shabbir, Babar; Zheng, Changxi; Wang, Ziyu; Zhang, Yupeng; Huang, Yamin; Dong, Yemin; Jasieniak, Jacek J.; Su, Bin; Bao, Qiaoliang.

In: Journal of Materials Chemistry C, Vol. 7, No. 20, 28.05.2019, p. 5954-5961.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Dai, Zhigao

AU - Ou, Qingdong

AU - Wang, Chujie

AU - Si, Guangyuan

AU - Shabbir, Babar

AU - Zheng, Changxi

AU - Wang, Ziyu

AU - Zhang, Yupeng

AU - Huang, Yamin

AU - Dong, Yemin

AU - Jasieniak, Jacek J.

AU - Su, Bin

AU - Bao, Qiaoliang

PY - 2019/5/28

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N2 - Effective assembly of perovskite quantum dots is a huge challenge to develop high-performance optoelectronic devices with large scale integration functionality. Here, we demonstrate a facile way to fabricate one-dimensional arrays consisting of aligned perovskite quantum dots and their remarkable application as high-performance photodetectors. All inorganic perovskite CsPbX3 (X = Cl, Br, I) quantum dots, synthesized by a hot injection method, are precisely assembled into the one-dimensional arrays using a liquid bridge induced assembly strategy. Systematic studies have shown that photodetectors based on such one-dimensional CsPbI3 quantum dot arrays have excellent performance in terms of high responsivity and high detection sensitivity. It is suggested that the availability of more oxygen-rich hole trapping states on the surface of the quantum dots play an important role in the photocurrent generation. This work presents a significant step forward towards scalable self-assembly of perovskite quantum dots into one-dimensional arrays, indicating an enormous potential in manufacturing of high-performance integrated optoelectronic sensor circuitry.

AB - Effective assembly of perovskite quantum dots is a huge challenge to develop high-performance optoelectronic devices with large scale integration functionality. Here, we demonstrate a facile way to fabricate one-dimensional arrays consisting of aligned perovskite quantum dots and their remarkable application as high-performance photodetectors. All inorganic perovskite CsPbX3 (X = Cl, Br, I) quantum dots, synthesized by a hot injection method, are precisely assembled into the one-dimensional arrays using a liquid bridge induced assembly strategy. Systematic studies have shown that photodetectors based on such one-dimensional CsPbI3 quantum dot arrays have excellent performance in terms of high responsivity and high detection sensitivity. It is suggested that the availability of more oxygen-rich hole trapping states on the surface of the quantum dots play an important role in the photocurrent generation. This work presents a significant step forward towards scalable self-assembly of perovskite quantum dots into one-dimensional arrays, indicating an enormous potential in manufacturing of high-performance integrated optoelectronic sensor circuitry.

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