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 language | English |
|---|---|
| Pages (from-to) | 5954-5961 |
| Number of pages | 8 |
| Journal | Journal of Materials Chemistry C |
| Volume | 7 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - 28 May 2019 |
Cite this
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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 journal › Article › Research › peer-review
TY - JOUR
T1 - Capillary-bridge mediated assembly of aligned perovskite quantum dots for high-performance photodetectors
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
Y1 - 2019/5/28
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.
UR - http://www.scopus.com/inward/record.url?scp=85066144541&partnerID=8YFLogxK
U2 - 10.1039/c9tc01104h
DO - 10.1039/c9tc01104h
M3 - Article
VL - 7
SP - 5954
EP - 5961
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
SN - 2050-7526
IS - 20
ER -